3-Day Gen Open 112003 3a

Heat / TemperatureHeat / TemperatureHeat / Temperature Heat / Temperature ControlControl

Maintaining a stableMaintaining a stablefluid filmfluid film

© 2003 John Crane EAA 314314314

Heat in Stuffing BoxHeat in Stuffing Box

Two sources of heatTwo sources of heatheat soak from the productheat soak from the productheat generated by the sealheat generated by the seal

315315315

Heat generation Heat generation -- the causesthe causes

sizesize

speedspeed

temperaturetemperaturecoolingcooling

product propertiesproduct propertiesp p pp p pflush or multipleflush or multiple

surface finishsurface finish -- facesfacesToo much heat generatedToo much heat generated surface finish surface finish facesfaces

materials of facesmaterials of faces

h d lih d li

•• drydry--runningrunning•• excessive wearexcessive wear•• very short seal lifevery short seal life

hydraulic pressurehydraulic pressureyy

Hydraulic BalanceHydraulic Balance




Hydraulic Balance Hydraulic Balance -- ActualActual




Unbalanced Pusher SealUnbalanced Pusher Seal Balanced Pusher sealBalanced Pusher seal

324324324

Hydraulic Balance Hydraulic Balance -- Metal BellowsMetal Bellows

70%70%70%70%

eter

eter

70%70%70%70%

nce

Dia

me

nce

Dia

me

Metal bellows seals areMetal bellows seals are INHERENTLYINHERENTLY balancedbalanced

Bala

Bala

325325325

Metal bellows seals are Metal bellows seals are INHERENTLYINHERENTLY balancedbalancedNote: the balance factor varies with pressureNote: the balance factor varies with pressure

Hydraulic Balance Hydraulic Balance -- BenefitsBenefits

Reduced heat generationReduced heat generationideal for unstable and low SG fluidsideal for unstable and low SG fluidsideal for unstable and low SG fluidsideal for unstable and low SG fluidsless heat to be dissipated less heat to be dissipated -- less cooling requiredless cooling required

Reduced wear rateReduced wear ratelonger lifelonger lifeless downless down--timetime

R d d i d t d i th lR d d i d t d i th lReduced power required to drive the sealReduced power required to drive the seallower running costslower running costs

Increased pressure range forIncreased pressure range for pusherpusher sealssealsIncreased pressure range for Increased pressure range for pusherpusher sealssealsthis simple modification allows much higher pressures this simple modification allows much higher pressures to be sealedto be sealed

326326326

API682 specifies balanced seals for all applicationsAPI682 specifies balanced seals for all applications

Balanced Seals Balanced Seals –– Spring ForceSpring Force

Spring force produced by a variety of spring Spring force produced by a variety of spring typestypes

Single coil springSingle coil springMultiple coil springsMultiple coil springsWave springsWave springsMetal diaphragmsMetal diaphragmsMetal bellowsMetal bellows

l l d f fl l d f fNormal spring loading gives face stress of 1.5 Normal spring loading gives face stress of 1.5 –– 2.0 bar (202.0 bar (20--30 lb/in30 lb/in22))

S lf AS lf ASelf AssessmentSelf Assessment

Questions / AnswersQuestions / Answers

© 2003 John Crane EAA

Question 1Question 1

Name four of the Name four of the SizeSizefactors involved in the factors involved in the creation of frictional creation of frictional heatheat

Speed (rpm)Speed (rpm)

Nature of service fluidNature of service fluidheatheat

Temperature of fluidTemperature of fluid

Surface finish of facesSurface finish of faces

Materials of Materials of constructionconstruction

Pressure acting on thePressure acting on thePressure acting on the Pressure acting on the sealseal

Surface areaSurface areaSurface areaSurface area


Why are springs (or a Why are springs (or a To keep faces closedTo keep faces closedspring force) required?spring force) required? At low pressureAt low pressure

When stationaryWhen stationary

T t fT t fTo compensate for wearTo compensate for wear

To allow for shaft axial To allow for shaft axial movement (bearings ormovement (bearings ormovement (bearings or movement (bearings or thermal expansion)thermal expansion)

To hold faces closedTo hold faces closedTo hold faces closed To hold faces closed under short periods of under short periods of partial vacuumpartial vacuum


Metal bellows do not Metal bellows do not They are They are inherently inherently require a step in the require a step in the shaft or sleeve to shaft or sleeve to reduce face stressesreduce face stresses

balancedbalanced

reduce face stresses. reduce face stresses. Please state the reason Please state the reason for thisfor this


Which factors involved Which factors involved SizeSizein the creation of heat in the creation of heat are we generally unable are we generally unable to change or influence?to change or influence?

Speed (rpm)Speed (rpm)

to change or influence?to change or influence?


Give the percentage Give the percentage Pusher seals Pusher seals –– 75%75%hydraulic balance figure hydraulic balance figure most commonly usedmost commonly used

Metal bellows Metal bellows –– 70%70%


What face stress is What face stress is 1.1/2 to 2 bar (kg/cm1.1/2 to 2 bar (kg/cm22))given by the normal given by the normal spring loading?spring loading?


If the seal balance If the seal balance Wear will increaseWear will increasefactor is changed from factor is changed from 75% to 80%, what will 75% to 80%, what will happen to the rate ofhappen to the rate ofhappen to the rate of happen to the rate of wear?wear?


State two advantages to State two advantages to Less wearLess wearbe gained from be gained from hydraulically balancing hydraulically balancing a pusher mechanicala pusher mechanical

Longer lifeLonger life

Less heat generatedLess heat generateda pusher mechanical a pusher mechanical sealseal

Less coolingLess cooling

Less power consumedLess power consumedCheaper to runCheaper to runCheaper to runCheaper to run

Higher pressure Higher pressure capabilitycapabilitycapabilitycapability

Environment of aEnvironment of aEnvironment of a Environment of a Mechanical SealMechanical Seal

Cooling the Seal AreaCooling the Seal Area

© 2003 John Crane EAA 337337337

Heat in Stuffing BoxHeat in Stuffing Box

Two sources of heatTwo sources of heatheat soak from the productheat soak from the productheat generated by the sealheat generated by the seal

338338338

CoolingCooling

Heat control / removalHeat control / removal

PTFEPTFE

AA BB

GraphiteGraphite

CC DDCC DD



342342342


Product recirculation line.Product recirculation line.API Plan 11API Plan 11

343343343


API Plan 13API Plan 13

Reverse Reverse circulation tocirculation tocirculation to circulation to suctionsuction

344344344


Ensure flow Ensure flow at all times:at all times:constant and constant and even even temperaturetemperaturetemperaturetemperature

Removes heat Removes heat generated bygenerated bygenerated by generated by the sealthe seal

Do not useDo not usewith awith a

coolingcooling

345345345

coolingcoolingjacket.jacket.


346346346



347347347




349349349


API Plan 61 / 62API Plan 61 / 62



352352352



354354354





What are the two main What are the two main Friction between Friction between sources of heat in the sources of heat in the seal chamber?seal chamber?

Primary Ring and Primary Ring and Mating RingMating Ring

Heat soak from a hotHeat soak from a hotHeat soak from a hot Heat soak from a hot productproduct


Why do some mating Why do some mating Good contact/good heat Good contact/good heat rings dissipate heat rings dissipate heat better than others?better than others?

soak paths between soak paths between mating ring and its mating ring and its housinghousinghousinghousing

Good heat conducting Good heat conducting materials such as silicon materials such as silicon carbidecarbide


What can happen to the What can happen to the Fluid will vaporise Fluid will vaporise sealed fluid if a suitable sealed fluid if a suitable heat balance cannot be heat balance cannot be achieved?achieved?

between the seal faces, between the seal faces, creating dry running creating dry running and rapid wearand rapid wearachieved?achieved? and rapid wearand rapid wear

Torsional and radial Torsional and radial vibration caused by vibration caused by yy“stick“stick--slip”slip”

Axial vibration if there is Axial vibration if there is expansion when fluid expansion when fluid vaporises (e.g., water vaporises (e.g., water to steam)to steam)to steam)to steam)


What simple methods of What simple methods of li d hli d h

Product recirculationProduct recirculationcooling are used when a cooling are used when a suitable heat balance suitable heat balance cannot be maintained?cannot be maintained?

API Plan 1, 11, 13API Plan 1, 11, 13Cooling jacketCooling jacket


Give two methods of Give two methods of Increase surface area of Increase surface area of improving the cooling improving the cooling effect from a product effect from a product recirculation line?recirculation line?

recirculation piperecirculation pipeExternal finsExternal fins

Coiled pipeCoiled piperecirculation line?recirculation line? Coiled pipeCoiled pipe

Fit cooler/heat Fit cooler/heat exchanger into theexchanger into theexchanger into the exchanger into the recirculation linerecirculation line



When is a cooled When is a cooled When the pumped fluid When the pumped fluid mating ring particularly mating ring particularly successful?successful?

is stable under pressure is stable under pressure in the pump, but is in the pump, but is brought close to itsbrought close to itsbrought close to its brought close to its vapour point when it vapour point when it passes across the faces, passes across the faces, increasing in increasing in temperature and temperature and dropping in pressuredropping in pressuredropping in pressure.dropping in pressure.


What purpose can a What purpose can a Can be used for heating Can be used for heating hollow mating ring hollow mating ring serve in addition to serve in addition to cooling?cooling?

viscous fluid filmsviscous fluid films

cooling?cooling?


If conditions are not If conditions are not Pumping ring in the seal Pumping ring in the seal ideal to achieve a good ideal to achieve a good thermosyphon thermosyphon circulation what can becirculation what can be

chamberchamber

Small external Small external circulating pump incirculating pump incirculation, what can be circulation, what can be

done to improve done to improve circulation?circulation?

circulating pump in circulating pump in downdown--leg from sealant leg from sealant systemsystemyy

HandsHands--on Exerciseon Exercise

Assemble and Fit a Balanced Pusher SealAssemble and Fit a Balanced Pusher SealType 109B or Type 8B1Type 109B or Type 8B1

..

364364364

Type 8B1 Balanced Elastomer O-Ring Seal'X''X'

Gasket

(3) (2) (1)

L3L65

L3

= Scribed datum lines


Secondary ContainmentSecondary Containment

© 2003 John Crane EAA 366366366



To contain hazardous emissionsTo contain hazardous emissions

To contain product leakage when main mechanical seal To contain product leakage when main mechanical seal finally failsfinally fails

To isolate product from the atmosphereTo isolate product from the atmospherecokingcokingcokingcoking

crystallisingcrystallising

freezingfreezing

polymerisingpolymerising

To contain a quench for other reasons (e g cooling)To contain a quench for other reasons (e g cooling)

368368368

To contain a quench for other reasons (e.g. cooling)To contain a quench for other reasons (e.g. cooling)


Non-contacting devices

A B CC

Contacting Devices

D E F G

Quench and FlushQuench and Flush

QuenchQuenchlow pressure (0.5 bar g)low pressure (0.5 bar g)low pressure (0.5 bar g)low pressure (0.5 bar g)low flow (0.5 litres/minute)low flow (0.5 litres/minute)external to main sealexternal to main sealno contaminationno contaminationno dilutionno dilution

FlushFlush

high pressure (>1.0 bar above seal pressure)high pressure (>1.0 bar above seal pressure)g p ( p )g p ( p )injected into seal chamberinjected into seal chambercools pumped productcools pumped productdil t d d tdil t d d t

370370370

dilutes pumped product.dilutes pumped product.


NonNon--contactingcontacting

Fixed nonFixed non sparkingsparkingFixed nonFixed non--sparking sparking

throttle bushthrottle bush

Minimum requirement Minimum requirement

for API 610for API 610

Leakage reductionLeakage reduction

Any shaft movement Any shaft movement yy

will cause wear.will cause wear.

371371371Use API Plan 61Use API Plan 61

Secondary ContainmentSecondary ContainmentNonNon--contactingcontacting

Floating carbon bushFloating carbon bushFloating carbon bushFloating carbon bush

Minimum requirement for Minimum requirement for API 682API 682API 682API 682

Moves with the shaftMoves with the shaft

L k d tiL k d tiLeakage reductionLeakage reduction

Steam quenchSteam quench

Less wearLess wear

Longer life.Longer life.

372372372Use API Plan 61 or 62Use API Plan 61 or 62

Secondary ContainmentSecondary ContainmentNonNon--contacting (close)contacting (close)

Floating carbon bushFloating carbon bush

Segmented for ease of Segmented for ease of replacementreplacement

Wears own clearanceWears own clearance

Moves with the shaftMoves with the shaft

Leakage reductionLeakage reduction

Steam quenchSteam quench

Less leakageLess leakage

Longer life.Longer life.



Contacting or NonContacting or Non--contactingcontacting

Materials to suitMaterials to suit

NonNon contactingcontactingNonNon--contactingcontacting

acts like plain bushacts like plain bush

can be compressed can be compressed when seal leakswhen seal leaks


Contacting or NonContacting or Non--contactingcontacting

Materials to suitMaterials to suit

NonNon contactingcontactingNonNon--contactingcontacting

acts like plain bushacts like plain bush

can be compressed can be compressed when seal leakswhen seal leaks

ContactingContactingContactingContactingmust supply continuous must supply continuous quenchquench

Use API Plan 62 or 51Use API Plan 62 or 51

Secondary ContainmentSecondary ContainmentContactingContacting

Various lipseal typeVarious lipseal typeVarious lipseal type Various lipseal type

devicesdevices

Isolate p od ct f omIsolate p od ct f omIsolate product from Isolate product from

atmosphere and atmosphere and

t i l kt i l kcontain any leakagecontain any leakage

Must supply lubricant Must supply lubricant

at all times (quench)at all times (quench)

Low pressures only.Low pressures only.



Li l dLi l dLip seal reversedLip seal reversed

Ideal for grease Ideal for grease gglubricationlubrication

Acts as safety valveActs as safety valve

Used in paperUsed in paperUsed in paper, Used in paper, sewage and sugar sewage and sugar industriesindustriesindustriesindustries



C ti hC ti hContinuous quenchContinuous quench

Metal casingMetal casing

Plastics and PTFEPlastics and PTFE

Version for waterVersion for water

Higher pressureHigher pressureHigher pressureHigher pressure

Hardened shaftHardened shaft



John Crane ‘FS’ sealJohn Crane ‘FS’ seal

NonNon--contacting in contacting in

normal operationnormal operationnormal operationnormal operation

No quench requiredNo quench required

Main seal failureMain seal failure

activates at 0.5 baractivates at 0.5 bar

50 bar dynamic50 bar dynamic

379379379

yy


SafeSafe--TT--SealSealSafeSafe--TT--SealSeal‘FS’‘FS’


381381381

Leakage ContainmentLeakage Containment

Typical Type 48MP / Type 28SC Tandem InstallationTypical Type 48MP / Type 28SC Tandem Installation

Secondary Containment Secondary Containment -- SealolSealol

383383383

Low temperature version shownLow temperature version shown






What two categories do What two categories do ContactingContactingsecondary containment secondary containment devices fall into?devices fall into?

NonNon--contactingcontacting


Which form of Which form of Solid, floating carbon Solid, floating carbon secondary containment secondary containment conforms to the conforms to the minimum requirementminimum requirement

bushbush

minimum requirement minimum requirement of API 682, Category 3?of API 682, Category 3?


Why are segmented Why are segmented They can be replaced They can be replaced bushes used, bushes used, particularly with large particularly with large equipment?equipment?

without dismantling the without dismantling the machinemachine

Less leakageLess leakageequipment?equipment? Less leakageLess leakage


What else is needed What else is needed h ih i

Continuous quench for Continuous quench for l b i ti d lil b i ti d liwhen using a when using a

compressed packing?compressed packing?lubrication and coolinglubrication and cooling


Which device has two Which device has two John Crane ‘FS’ lip sealJohn Crane ‘FS’ lip sealspecified rates of specified rates of leakage?leakage?

NonNon--energised (nonenergised (non--contacting)contacting)

Energised (contacting)Energised (contacting)Energised (contacting)Energised (contacting)


Multiple SealsMultiple SealsMultiple SealsMultiple Seals

© 2003 John Crane EAA 391391391

A Single SealA Single Seal

1.1. Clean, pure, nonClean, pure, non--abrasive process fluidabrasive process fluid2.2. Moderate pressure, viscosity and temperatureModerate pressure, viscosity and temperaturep , y pp , y p3.3. Steady and continuous shaft speedSteady and continuous shaft speed

Single seal is not enoughSingle seal is not enough

Use multiple seals if:Use multiple seals if:fluid is toxicfluid is toxicfluid is toxicfluid is toxicfluid is flammablefluid is flammableenvironmentalenvironmentalisolation requiredisolation requiredfluid changes statefluid changes state

Single seals utilise Single seals utilise

fluid is not a good fluid is not a good lubricant or is a gaslubricant or is a gasfluid is unstablefluid is unstableprocess fluid to provide process fluid to provide

the lubricating interface the lubricating interface filmfilm

fluid is unstablefluid is unstabledry running likelydry running likelyexpensive productexpensive productfilmfilm expensive productexpensive productcritical pumpcritical pump

Single seal is not enoughSingle seal is not enough

Use multiple seals if:Use multiple seals if:fluid is toxicfluid is toxicfluid is toxicfluid is toxicfluid is flammablefluid is flammableenvironmentalenvironmentalisolation requiredisolation requiredfluid changes statefluid changes statefluid is not a good fluid is not a good lubricant or is a gaslubricant or is a gasfluid is unstablefluid is unstable

Single seals utilise Single seals utilise fluid is unstablefluid is unstabledry running likelydry running likelyexpensive productexpensive product

process fluid to provide process fluid to provide the lubricating interface the lubricating interface filmfilm expensive productexpensive product

critical pumpcritical pumpfilmfilm

Leakage Leakage -- Newtonian FluidsNewtonian FluidsDiameter (mm)

100

80

Speed (rpm)

80

60

4040

30

20

L e a k a g e (m l/h )Pressure (bar g)

0 2 4 6 8 10 12 14 16 18 20 0.01 0.1 1 10 100

Balanced Seal Unbalanced Seal

Multiple SealsMultiple Seals

Two common arrangementsTwo common arrangementsTandemTandemTandemTandem

low pressure buffer fluidlow pressure buffer fluid

high integrity secondary containmenthigh integrity secondary containmenthigh integrity secondary containmenthigh integrity secondary containment

inboard seal lubricated by productinboard seal lubricated by product

Pressurised Double (e g BackPressurised Double (e g Back--toto--Back)Back)Pressurised Double (e.g., BackPressurised Double (e.g., Back toto Back)Back)pressurised barrier fluidpressurised barrier fluid

inboard seal lubricated by barrier fluidinboard seal lubricated by barrier fluidinboard seal lubricated by barrier fluidinboard seal lubricated by barrier fluid

There are many other arrangementsThere are many other arrangementsFaceFace toto Face; Dual; Concentric;Face; Dual; Concentric; etcetcFaceFace--toto--Face; Dual; Concentric;Face; Dual; Concentric; etc.etc.

M l i l S lM l i l S lMultiple SealsMultiple Seals

TandemTandemUnpressurisedUnpressurised


Multiple Seals: Tandem

P d tP d t

Inboard SealInboard SealProduct Product lubricates lubricates this sealthis seal

This seal is This seal is under full under full product product pressurepressure

blblNote possible Note possible contamination contamination of buffer fluidof buffer fluidUse API Plan 52Use API Plan 52

Basic tandem nonBasic tandem non--pressurised doublepressurised doubleUse API Plan 52Use API Plan 52

Multiple Seals: TandemMultiple Seals: Tandem

Outboard SealOutboard Seal

Clean buffer Clean buffer fluid lubricates fluid lubricates this sealthis seal

Buffer fluid isBuffer fluid isBuffer fluid is Buffer fluid is at low at low (atmospheric) (atmospheric) pressurepressure

Use API Plan 52Use API Plan 52Basic tandem nonBasic tandem non--pressurised doublepressurised double

Use API Plan 52Use API Plan 52

Multiple Seals: TandemMultiple Seals: TandemInboard seal Inboard seal most likely to most likely to fail firstfail first

Buffer fluid Buffer fluid l l/l l/level/pressure level/pressure will risewill riseOutboard seal Outboard seal acts as acts as secondary secondary containmentcontainmentcontainmentcontainment

Process can Process can continue until continue until Use API Plan 52Use API Plan 52 co t ue u tco t ue u tcompletedcompletedBasic tandem nonBasic tandem non--pressurised doublepressurised double

Use API Plan 52Use API Plan 52



Multiple Seals: TandemMultiple Seals: TandemPart of Drawing NumberH-SP-47063

403403403


M l i l S lM l i l S lMultiple SealsMultiple Seals

PressurisedPressurisedDoubleDouble


Double Seals: BackDouble Seals: Back--toto--BackBack

Pressurised Pressurised barrier fluid is barrier fluid is circulated circulated round the round the sealssealssealsseals

This lubricates This lubricates both sets ofboth sets ofboth sets of both sets of seal facesseal faces

Use API Plan 53Use API Plan 53Basic backBasic back--toto--back pressurised double sealback pressurised double seal

Use a 53Use a 53

Double Seals: BackDouble Seals: Back--toto--BackBackIf outboard If outboard seal fails, seal fails, barrier barrier pressure will pressure will fail and pumpfail and pumpfail and pump fail and pump must be must be switched off switched off as product willas product willas product will as product will leak outleak out

Use API Plan 53Use API Plan 53Basic backBasic back--toto--back pressurised double sealback pressurised double seal

Use a 53Use a 53

Double Seals: BackDouble Seals: Back--toto--BackBack

Double Seals: FaceDouble Seals: Face--toto--FaceFace

RotatingRotatingStationary Stationary sealsseals

Rotating Rotating Mating Mating RingRing

Similar in operation to backSimilar in operation to back--toto--back double sealback double sealMuch shorterMuch shorter -- only one mating ringonly one mating ringMuch shorter Much shorter only one mating ringonly one mating ring

Simple rotating componentsSimple rotating components

Sundyne Pump SealsSundyne Pump Seals




Sundyne SealsSundyne Seals

Shaft Speed:Shaft Speed: Up to 25 000 RPMUp to 25 000 RPMShaft Speed:Shaft Speed: Up to 25,000 RPMUp to 25,000 RPM

Temperature:Temperature: AM350 to 425AM350 to 425°°C / 800C / 800°°FF

Hastelloy C to 360Hastelloy C to 360°°C / 675C / 675°°FFHastelloy C to 360Hastelloy C to 360 C / 675C / 675 FF

Pressure:Pressure: AM350 60 bar gAM350 60 bar gPressure:Pressure: AM350 60 bar gAM350 60 bar g

Hastelloy C 53 bar g max.Hastelloy C 53 bar g max.

Double Seals: FaceDouble Seals: Face--toto--FaceFace

Double seals: FaceDouble seals: Face--toto--faceface

Type 7700 DryType 7700 Dry--running Double Sealsrunning Double Seals

d d lld d ll b ll llb ll ll

416416416

Standard InstallationStandard Installation Debris Well InstallationDebris Well Installation

Type 7700 SealType 7700 SealDouble seal for use where single seals are not acceptableDouble seal for use where single seals are not acceptableGas barrier lubricationGas barrier lubricationDouble, balanced designDouble, balanced designTemperatures to 150 Temperatures to 150 °°CCSpeeds to 300 rpmSpeeds to 300 rpmSpeeds to 300 rpmSpeeds to 300 rpmComputer optimised primary ring profileComputer optimised primary ring profileSolid, symmetrical tungsten carbide mating ringSolid, symmetrical tungsten carbide mating ringHandles more shaft movement than any other vessel sealHandles more shaft movement than any other vessel sealMajor inboard and outboard components interchangeableMajor inboard and outboard components interchangeableField repairableField repairableField repairableField repairableCartridge sealCartridge sealDebris well optionDebris well option

417417417

Liquid barrier lubrication can be used if preferred.Liquid barrier lubrication can be used if preferred.

Mixer / Agitator / ReactorMixer / Agitator / Reactorgg

Type 32 Type 32 -- DryDry--Running SealRunning Seal

Type 32 ParametersType 32 Parameters

Performance DataPerformance Data

Temperature -40°C to +150°C-50°F to +300°F

Pressure Full vacuum to 15 bar g/225 psig

Speed Up to 2 m/sor 400 fpm

Size Range 25 to 175 mm 1.00 to 7.00 in.

Double Seals: ConcentricDouble Seals: Concentric

Type 151 Seal for TopType 151 Seal for Top--Entry VesselsEntry Vessels



Type 153 Seal for Top Entry, GlassType 153 Seal for Top Entry, Glass--Lined MixersLined Mixers


423423423Type 157C Seal for Top Entry, GlassType 157C Seal for Top Entry, Glass--Lined MixersLined Mixers

Mixer and Agitator SealsMixer and Agitator Seals

Performance Data

gg

Temperature -25°C to +230°C -25°C to +230°C

Type 151/153 Type 157C

-15°F to +445°F -15°F to +445°FPressure Full vacuum to 41 bar

g/600 psigFull vacuum to 41 bar

g/600 psig

Speed Up to 1000 rpm Up to 1000 rpm

Size Range 30 to 200 mm / 1 00 to 30 to 160 mm

N t B i it bl fl th l b d DIN th t d d i tN t B i it bl fl th l b d DIN th t d d i t

Size Range 30 to 200 mm / 1.00 to 9.00 in.

30 to 160 mm

Note: By using a suitable flange the seals can be used on DIN or other standard equipmentNote: By using a suitable flange the seals can be used on DIN or other standard equipment

Reverse PressureReverse Pressure







Double seals: BackDouble seals: Back--toto--backback

Part of Drawing NumberHSP-1002775-1

Dual Seal Dual Seal

Type 5620 Type 5620 –– NonNon--pressurised “tandem” sealpressurised “tandem” seal

433433433

Dual Seal Dual Seal

Type 5620 Type 5620 –– Pressurised “double” sealPressurised “double” seal

434434434

American Petroleum InstituteAmerican Petroleum Institute

Standards for Pumps and Mechanical SealsStandards for Pumps and Mechanical Seals

API 676API 676Positive DisplacementPositive DisplacementAPI 610API 610

7th Edition7th EditionPumpsPumps 7th Edition7th EditionPumps and SealsPumps and Seals

API 682API 682API 610API 6108th Edition8th Edition

Mainly PumpsMainly Pumps

API 682API 6821st Edition1st Edition

Seals OnlySeals Only..

y py p

Type A Type A -- Arrangement 2Arrangement 2ypyp gg

Hastelloy™ C Hastelloy™ C SpringsSprings

Low EmissionLow EmissionOptimised Face DesignOptimised Face Design

Primary FacePrimary FaceCarbon Carbon -- standardstandardTungsten Carbide Tungsten Carbide --

Unpressurised Dual SealUnpressurised Dual SealJohn Crane John Crane

316 SS Metal Parts 316 SS Metal Parts --standardstandard

p gp g Optimised Face DesignOptimised Face Designggoptionaloptional Type 2648Type 2648

Drive CollarDrive Collar

FluoroelastomerFluoroelastomer Sili C bid M ti RiSili C bid M ti Ri

..Fluoroelastomer Fluoroelastomer Secondary Seals Secondary Seals --standardstandard

Silicon Carbide Mating Ring Silicon Carbide Mating Ring -- standardstandardHydraulically RetainedHydraulically Retained

Mating RingMating Ring

Arrangement 2Arrangement 2

Rotating sealsRotating sealsRotating sealsRotating seals

stationary seals are Data Sheet selectionstationary seals are Data Sheet selection

Reverse pressure up to 2.75 bar (40 psi)Reverse pressure up to 2.75 bar (40 psi)p p ( p )p p ( p )

maximum likely in vapour recovery system maximum likely in vapour recovery system even under upset conditionseven under upset conditionseven under upset conditionseven under upset conditions

..

T y p e A Type A -- Arrangement 3Arrangement 3ypyp gg

Hastelloy™ C Hastelloy™ C SpringsSprings

Low EmissionLow EmissionOptimised Face DesignOptimised Face Design

Primary FacePrimary FaceCarbon Carbon -- standardstandardTungsten Carbide Tungsten Carbide --

Pressurised Dual SealPressurised Dual SealJohn Crane John Crane

316 SS Metal Parts 316 SS Metal Parts --standardstandard

Optimised Face DesignOptimised Face Designggoptionaloptional Type 3648Type 3648

Drive CollarDrive Collar

Fluoroelastomer Fluoroelastomer Silicon Carbide Mating RingSilicon Carbide Mating RingHydraulically RetainedHydraulically Retained

..

Secondary Seals Secondary Seals --standardstandard

Silicon Carbide Mating Ring Silicon Carbide Mating Ring -- standardstandard

Hydraulically Retained Hydraulically Retained Mating RingMating Ring

Arrangement 3Arrangement 3

Must function as Arrangement 2 in theMust function as Arrangement 2 in the

event of loss of barrier fluid pressureevent of loss of barrier fluid pressure

Barrier fluid pressureBarrier fluid pressure

1 4 to 4 1 bar above inboard seal pressure1 4 to 4 1 bar above inboard seal pressure1.4 to 4.1 bar above inboard seal pressure1.4 to 4.1 bar above inboard seal pressure

inboard seal pressure at throat bushinginboard seal pressure at throat bushing

Standard is for seals to rotateStandard is for seals to rotate ..

Type C Type C -- Arrangement 2 and 3Arrangement 2 and 3

Silicon Carbide Mating Ring Silicon Carbide Mating Ring --standardstandard

Carbon or Tungsten Carbon or Tungsten Carbide FaceCarbide Face

Low Expansion Alloy Low Expansion Alloy --front adapterfront adapter

Spiral Wound GasketSpiral Wound Gasket

718 Inconel™ 718 Inconel™ Bellows Bellows --standard forstandard for

Axial Flow Axial Flow Pumping RingPumping Ring --

standard for standard for API 682 sealsAPI 682 seals

Pumping Ring Pumping Ring standardstandard

Drive Drive CollarCollar

..

CraneCrane--foil™ Secondary foil™ Secondary Seals and GasketingSeals and Gasketing Pressurised or Unpressurised Dual High Temperature SealPressurised or Unpressurised Dual High Temperature Seal

Multiple SealsMultiple SealsAdvantagesAdvantages of Double Pressurised and of Double Pressurised and

Tandem Seal ConfigurationsTandem Seal ConfigurationsP i d D blP i d D bl U i d T dU i d T dPressurised DoublePressurised Double

Will seal abrasive, viscous, highly Will seal abrasive, viscous, highly toxic and unstable media, gas, or toxic and unstable media, gas, or

Unpressurised TandemUnpressurised Tandem

Simple sealant system Simple sealant system -- no no pressurisation equipment requiredpressurisation equipment required

vacuumvacuum

Any leakage will be barrier fluid into Any leakage will be barrier fluid into the process, so no contamination of the process, so no contamination of

As product recirculation is commonly As product recirculation is commonly used at the inboard seal, less heat is used at the inboard seal, less heat is accumulatedaccumulated

barrier fluidbarrier fluid

Outboard seal is likely to start to leak Outboard seal is likely to start to leak first, giving early warning of seal first, giving early warning of seal

As the buffer fluid is not pressurised, As the buffer fluid is not pressurised, there is less heat generated, therefore there is less heat generated, therefore less to removeless to remove

failure. No process leakagefailure. No process leakage

Will not be upset by dryWill not be upset by dry--running running conditions in the pump (e.g., starting conditions in the pump (e.g., starting

Inboard seal is likely to fail first. Inboard seal is likely to fail first. Outboard seal can be designed to seal Outboard seal can be designed to seal full process conditions, giving time to full process conditions, giving time to

with closed suction valve)with closed suction valve) complete the process run before complete the process run before shutting down the pumpshutting down the pump

Multiple SealsMultiple SealsDisadvantagesDisadvantages of Double Pressurised and of Double Pressurised and

Tandem Seal ConfigurationsTandem Seal ConfigurationsBack to BackBack to Back

Complex sealant system requiring Complex sealant system requiring pressure supply control andpressure supply control and

TandemTandem

Sealant system, although simple, Sealant system, although simple, must normally be vented tomust normally be vented topressure supply, control and pressure supply, control and

monitoringmonitoring

Need to remove additional heat Need to remove additional heat t d b i d b it d b i d b i

must normally be vented to must normally be vented to atmosphere, or safe areaatmosphere, or safe area

Buffer fluid will become Buffer fluid will become t i t d b th fl idt i t d b th fl idgenerated by pressurised barrier generated by pressurised barrier

fluidfluid

Higher power consumptionHigher power consumption

contaminated by the process fluidcontaminated by the process fluid

Can only be used if the process fluid Can only be used if the process fluid is suitable for lubricating the inboard is suitable for lubricating the inboard g e po e co su pt og e po e co su pt o

Seal failure results in a rapid loss of Seal failure results in a rapid loss of barrier fluid. The system must barrier fluid. The system must usually be shut down on failureusually be shut down on failure

s su tab e o ub cat g t e boa ds su tab e o ub cat g t e boa dseal facesseal faces

usually be shut down on failureusually be shut down on failure





Give one set of Give one set of conditions that a singleconditions that a single

Fluid should be present Fluid should be present andandconditions that a single conditions that a single

seal requires in order to seal requires in order to achieve maximum seal achieve maximum seal

andandCleanClean

PurePure

life, and minimum life, and minimum leakage.leakage.

NonNon--abrasiveabrasive

Moderate, nonModerate, non--varyingvaryingPressurePressure

ViscosityViscosity

TemperatureTemperatureTemperatureTemperature

Shaft SpeedShaft SpeedSteadySteady

ContinuousContinuous


Why may a single seal Why may a single seal SafetySafetyarrangement not be arrangement not be acceptable?acceptable?

Leakage not Leakage not acceptableacceptable

FunctionFunctionFunctionFunctionSingle seal would not Single seal would not operate under operate under ppspecified working specified working conditionsconditions

C tC tCostCostCritical machineCritical machine

Expensive productExpensive productExpensive productExpensive product


In a pressurised double In a pressurised double A minimum of 1 bar or A minimum of 1 bar or seal, what is the seal, what is the minimum differential minimum differential pressure of the barrierpressure of the barrier

10% (whichever is 10% (whichever is higher) above the higher) above the maximum process fluidmaximum process fluidpressure of the barrier pressure of the barrier

fluid?fluid?maximum process fluid maximum process fluid pressure at the inboard pressure at the inboard sealseal


Can the buffer fluid Can the buffer fluid i t di t d

NoNopressure in a tandem pressure in a tandem seal arrangement be seal arrangement be higher than the process higher than the process

API 682 specifies that API 682 specifies that there should be a safety there should be a safety margin of up to 2.75margin of up to 2.75g pg p

pressure, under normal pressure, under normal operating conditions?operating conditions?

margin of up to 2.75 margin of up to 2.75 bar reverse pressure bar reverse pressure allowable under allowable under ababnormal operatingnormal operatingababnormal operating normal operating conditionsconditions


Give two examples of Give two examples of Unstable fluidsUnstable fluidsapplications for which applications for which double pressurised seals double pressurised seals would be usedwould be used

Highly toxicHighly toxic

AbrasiveAbrasivewould be used.would be used.

ViscousViscous

GaseousGaseous

GasesGases


Which API Piping Plans Which API Piping Plans Plan 53APlan 53Acould be used to supply could be used to supply the barrier the barrier fluidfluid in a in a pressurised doublepressurised double

Plan 53BPlan 53B

Plan 53CPlan 53Cpressurised double pressurised double seal?seal? Plan 54Plan 54


What lubricates the What lubricates the The process fluidThe process fluidinboard seal faces of an inboard seal faces of an unpressurised multiple unpressurised multiple seal arrangement?seal arrangement?seal arrangement?seal arrangement?


State two advantages State two advantages Simple sealant systemSimple sealant systemthat an unpressurised that an unpressurised arrangement has over a arrangement has over a pressurisedpressurised

Less heat accumulatedLess heat accumulated

Less heat generated, so Less heat generated, so l tl tpressurised pressurised

arrangement.arrangement.less to removeless to remove

Outboard seal can act Outboard seal can act as backas back--up in the eventup in the eventas backas back--up in the event up in the event of inboard seal failureof inboard seal failure

Inboard seal canInboard seal canInboard seal can Inboard seal can continue to operate in continue to operate in the event of outboard the event of outboard seal failureseal failure


State two advantages State two advantages Will seal “anything and Will seal “anything and that a pressurised that a pressurised arrangement has over arrangement has over an unpressurisedan unpressurised

nothing”nothing”

No contamination of No contamination of barrier fluidbarrier fluidan unpressurised an unpressurised

arrangement.arrangement.barrier fluidbarrier fluid

Outboard seal likely to Outboard seal likely to leak firstleak first –– earlyearlyleak first leak first early early warning warning –– no process no process leakageleakage

DryDry--running pump will running pump will not damage the sealnot damage the seal


Sealant SystemsSealant Systems


Sealant SystemSealant System

Sealant SystemsSealant Systems

Sealant systems are required toSealant systems are required to

supply low pressure sealant to tandem seals supply low pressure sealant to tandem seals

and secondary containment sealsand secondary containment seals

supply pressurised sealant to backsupply pressurised sealant to back--toto--back back

and other pressurised seal arrangementsand other pressurised seal arrangements

cool the barrier fluid (sealant; buffer fluid)cool the barrier fluid (sealant; buffer fluid)

monitor seal condition / leakage.monitor seal condition / leakage.

458458458


AA CC

BBDD


Vessel SystemVessel System Tank SystemTank System


Cooling can be added Cooling can be added to the systemto the systemto the systemto the system

System must be System must be above and within 3above and within 3above, and within 3 above, and within 3 metres of pumpmetres of pump

Fl id i l t bFl id i l t bFluid circulates by Fluid circulates by thermosyphonthermosyphon

d lld llMay need small pump May need small pump or pumping scroll to or pumping scroll to

i t fli t fl

461461461

assist flow.assist flow.


Large bore pipingLarge bore piping

Smooth bendsSmooth bends

Constantly rising pipe Constantly rising pipe runsruns

Lagged upLagged up--leg optionalleg optional

Shortest route.Shortest route.

Sealant System: TandemSealant System: Tandem

Sealant System: TandemSealant System: Tandem

Fluid level must be Fluid level must be monitored:monitored:

Orifice plate. Orifice plate. Open to Open to

increase = inboard increase = inboard seal failingseal failingdecrease = outboard decrease = outboard

atmospheric atmospheric pressure. Valve pressure. Valve on this line on this line

seal failingseal failing should be open should be open until inboard seal until inboard seal failurefailure

O ti lO ti la ua u

Optional Optional temp/pressure temp/pressure gaugesgauges

OptionalOptionalOptional Optional circulating pumpcirculating pumpPressure switch & Pressure switch &

flow indicator are flow indicator are

464464464Use API Plan 52Use API Plan 52

useful options.useful options.

Sealant System: API Plan 52Sealant System: API Plan 52

Sealant Systems: TandemSealant Systems: Tandem

Indicates deterioration of7

8

Sealant Sight Glass LevelTandem Seal Arrangement

deterioration of inboard seal

5

6

Slight rise due to leakage of product

Indicates deterioration of 3

4

Leve

l

leakage of product into sealant. Sealant needs to be changed regularly

outboard seal

1

2

466466466

01 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Time

Sealant System: PressurisedSealant System: Pressurised

Sealant System: PressurisedSealant System: Pressurised

Nitrogen to Nitrogen to pressurise barrier pressurise barrier

Pressure relief valve

fluid:fluid:1 bar above process 1 bar above process pressure at the seal, pressure at the seal,

Fluid level Fluid level must be must be

or 10% above or 10% above process pressure at process pressure at the seal, whichever the seal, whichever

checked checked regularlyregularly

,,is greateris greater Hand pump to Hand pump to

manually manually replace lost replace lost

Pressure must be Pressure must be constantly constantly monitoredmonitored

barrier fluid barrier fluid while system while system remains remains

468468468

monitoredmonitoredpressurised.pressurised.

Use API Plan 53AUse API Plan 53A

Sealant System: API Plan 53ASealant System: API Plan 53A

Sealant System: PressurisedSealant System: PressurisedSealant Sight Glass Level

Pressurised Double Seal Arrangement

8

6

7Routine topping-up with hand pump

Large drop indicates deterioration of inboard and/or outboard seal

4

5

Leve

l

1

2

3 Slight drop due to leakage through two seals

0

1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Time

.

470470470

Sealant System: API Plan 53BSealant System: API Plan 53BCan be used Can be used

above 30 bar gabove 30 bar g

Can be Can be installed away installed away yyfrom seal areafrom seal area

SimplifiedSimplifiedSimplified Simplified instrumentationinstrumentation

Can efillCan efillCan refill Can refill system under system under pressurepressure

471471471

Sealant System: API Plan 53BSealant System: API Plan 53B

Sealant System: API Plan 53CSealant System: API Plan 53C


UpUp--leg: temperature at the top leg: temperature at the top should be similar to (or should be similar to (or slightlyslightly(( g yg ylower than) the seal endlower than) the seal end

DownDown--leg: temperature at the sealleg: temperature at the sealDownDown leg: temperature at the seal leg: temperature at the seal end should be similar to (or end should be similar to (or slightlyslightly higher than) the tophigher than) the top

Check the flow indicator if fittedCheck the flow indicator if fitted

Actual temperatures and flows will Actual temperatures and flows will depend on the application. Consult depend on the application. Consult your seal supplier.your seal supplier.

474474474

Typical Sealant SystemsTypical Sealant Systems

475475475

Special SystemsSpecial Systems

..

Special Systems Special Systems -- API 682API 682

Sealant TopSealant Top--Up TrolleyUp Trolley

Sealant System Sealant System -- 6BG6BG

Sealant System Sealant System -- 8DK8DK

Application GuideApplication Guide





How can a vessel be How can a vessel be By the addition of an By the addition of an designed to dissipate designed to dissipate more heat?more heat?

internal cooling coilinternal cooling coil


What equipment can be What equipment can be Hand pump via a nonHand pump via a non--fitted to top up a vessel fitted to top up a vessel while under pressure?while under pressure?

return valvereturn valve


What controls the What controls the Needle valveNeedle valvebarrier fluid pressure on barrier fluid pressure on a pumped tank system?a pumped tank system?


Which vessel type Which vessel type t h ld b dt h ld b d

Uncooled vesselUncooled vesselsystem should be used system should be used for:for:

Balanced outboardBalanced outboarda a ced outboa da a ced outboa dUnbalanced inboardUnbalanced inboard10 bar g barrier10 bar g barrierWater barrier fluidWater barrier fluid1500 rpm1500 rpm50 mm shaft diameter50 mm shaft diameter50 mm shaft diameter50 mm shaft diameterNo No ΔΔT requiredT required

HandsHands--on Exerciseon Exercise

Fit a Balanced NonFit a Balanced Non--Pusher SealPusher SealType 680Type 680

487487487

Fitting a Type 680Fitting a Type 680Metal Bellows SealMetal Bellows SealMetal Bellows SealMetal Bellows Seal

Fitting a Type 680 Metal Bellows Seal

(1)

1 Scribe first datum line (1) on shaft.


(1)

2 Remove shaft from seal chamber.


‘X’‘X’

Gasket

3 Measure dimension ‘X’.


‘X’

(1)(2)

4 Scribe line (2) ‘X’ mm inboard of line (1).


‘X’

(1)(2)(3)

L3

5 Scribe line (3) L3 mm inboard of line (2),L3 is the working length of the seal unit (See Fitting Instructions).


(1)(2)(3)

6 Ensure setscrews are withdrawn sufficiently to clear shaft and slide seal into position abutting line (3).


(1)(2)(3)

7 Tighten setscrews and replace shaft / seal in seal chamber. Ensure running faces are perfectly clean and dry.


‘A’

(1)(2)(3)

8 Insert gland plate into seal chamber. Check gap ‘A’.


(1)(2)(3)

L3

9 Insert and evenly tighten 4 bolts, gently compressing seal to its working length (L3).

Mechanical Seal InstallationMechanical Seal Installation

Fitting a Balanced NonFitting a Balanced Non--Pusher SealPusher SealType 680Type 680

498498498

88Fitting a Type 680Fitting a Type 680Metal Bellows SealMetal Bellows Seal


(1)

1 Scribe first datum line (1) on shaft.


(1)

2 Dismantle pump – remove seal chamber.


‘X’

GasketGasket

3 Fit Mating Ring into Gland Plate.Measure dimension ‘X’.


‘X’

(2)(1) (2)

4 Scribe line (2) ‘X’ mm outboard of line (1).


‘Z’‘Z’

Note this dimension from line (3) to Note this dimension from line (3) to end of shaft or a shaft step.end of shaft or a shaft step.

‘Z’‘Z’

‘X’

(2)(1) (2)(3)

L3

5 Scribe line (3) L3 mm inboard of line (2),L3 is the working length of the seal unit (See Fitting Instructions).


Lubricate shaft with suitable lubricantOn single-ended pumps, slide gland plate onto shaft, taking care not to damage the mating ring

(2)(1) (2)(3)

6 Ensure setscrews are withdrawn sufficiently to clear shaft, and slide seal into position, abutting line (3).


‘Z’‘Z’

Check this dimension from line (3) Check this dimension from line (3) to end of shaft or a shaft step.to end of shaft or a shaft step.

‘Z’‘Z’

(2)(1) (2)(3)

Check seal is square. Tighten setscrews. Refit seal chamber. Ensure lapped faces are perfectly clean and dry.


‘A’

(2)(1) (2)(3)

8 Insert gland plate into seal chamber. Check gap ‘A’.


(2)(1) (2)(3)

L3

9 Insert and evenly tighten 4 bolts, gently compressing seal to its working length (L3).

C id S lC id S lCartridge SealsCartridge Seals

AdvantagesAdvantages


Cartridge SealsCartridge SealsSeal fully assembled in Seal fully assembled in its own housing at its own housing at factoryfactoryfactoryfactory

All screws accessible All screws accessible from outsidefrom outside

Fully pressure tested Fully pressure tested before despatchbefore despatch

PP t t kit t kiPrePre--set to working set to working length length -- no measuringno measuring

Seal and seat square Seal and seat square to shaft axisto shaft axis

Lapped faces cannot Lapped faces cannot be damaged.be damaged.

Cartridge seals Cartridge seals -- designed to make installation simpledesigned to make installation simple

be damaged.be damaged.

Conventional SealsConventional SealsFitting Conventional Mechanical Seals

Mark position of face of stuffing box on shaftDismantle pumpp pLubricate tertiary sealFit seat in end cover - ensure fully home and squareCheck seat is correctly located on anti-rotation pinMeasure distance from front of end cover gasket to seat ('X') taking care not to scratch lapped faceLook up seal working length in fitting instructions (L3)Look up seal working length in fitting instructions (L3)Add 'X' to L3 (or subtract depending on pump design) and note dimension ('Y')Measure 'Y' from mark on shaft towards impellerMark shaft in this positionMeasure from this mark to end of shaft, or nearest step towards impeller and note dimension ('Z')Carefully wipe lapped face of seat perfectly cleanCarefully wipe lapped face of seat perfectly cleanPlace end cover on shaft taking care not to damage seatLightly lubricate shaft and secondary sealSlide seal unit on to shaft, ensuring it is the right way roundWipe lapped face of seal perfectly clean, taking care not to damage the surfaceFit l 'Z' f d f h ft h ft t i it i f tl t i f h ftFit seal 'Z' from end of shaft or shaft step, ensuring it is perfectly square to axis of shaftEvenly tighten grubscrewsAssemble pump taking care not to damage rotating seal unitOffer end cover to face of stuffing box. Check gap before compressing seal with 'A' dimension in fitting instructionsIf incorrect, dismantle pump and start againIf correct, tighten nuts on gland studsCross fingers

Conventional SealsConventional SealsFitting Conventional Mechanical Seals

Mark position of face of stuffing box on shaftDismantle pumpCommon questions:Common questions:p pLubricate tertiary sealFit seat in end cover - ensure fully home and squareCheck seat is correctly located on anti-rotation pinMeasure distance from front of end cover gasket to seat ('X') taking care not to scratch lapped faceLook up seal working length in fitting instructions (L3)

Common questions:Common questions:was it clean?was it clean?did I look up the correct seal?did I look up the correct seal?Look up seal working length in fitting instructions (L3)

Add 'X' to L3 (or subtract depending on pump design) and note dimension ('Y')Measure 'Y' from mark on shaft towards impellerMark shaft in this positionMeasure from this mark to end of shaft, or nearest step towards impeller and note dimension ('Z')Carefully wipe lapped face of seat perfectly clean

did I look up the correct seal?did I look up the correct seal?did I look up the correct size?did I look up the correct size?is the seat square?is the seat square?Carefully wipe lapped face of seat perfectly clean

Place end cover on shaft taking care not to damage seatLightly lubricate shaft and secondary sealSlide seal unit on to shaft, ensuring it is the right way roundWipe lapped face of seal perfectly clean, taking care not to damage the surfaceFit l 'Z' f d f h ft h ft t i it i f tl t i f h ft

is the seat square?is the seat square?did I measure accurately and correctly?did I measure accurately and correctly?will it work?will it work?Fit seal 'Z' from end of shaft or shaft step, ensuring it is perfectly square to axis of shaft

Evenly tighten grubscrewsAssemble pump taking care not to damage rotating seal unitOffer end cover to face of stuffing box. Check gap before compressing seal with 'A' dimension in fitting instructionsIf incorrect, dismantle pump and start again

will it work?will it work?for how long?for how long? ..

If correct, tighten nuts on gland studsCross fingers

Cartridge SealsCartridge SealsFitting Conventional Mechanical Seals

Mark position of face of stuffing box on shaftDismantle pumpLubricate tertiary sealFit seat in end cover - ensure fully home and squareCheck seat is correctly located on anti-rotation pinMeasure distance from front of end cover gasket to seat ('X') taking care not to scratch lapped face

d ld lMeasure distance from front of end cover gasket to seat ( X ) taking care not to scratch lapped faceLook up seal working length in fitting instructions (L3)Add 'X' to L3 (or subtract depending on pump design) and note dimension ('Y')Measure 'Y' from mark on shaft towards impellerMark shaft in this positionMeasure from this mark to end of shaft, or nearest step towards impeller and note dimension ('Z')Carefully wipe lapped face of seat perfectly cleanPlace end cover on shaft taking care not to damage seatLightly lubricate shaft and secondary sealSlide seal unit on to shaft, ensuring it is the right way roundWipe lapped face of seal perfectly clean taking care not to damage the surface

Fitting Cartridge SealsFitting Cartridge Seals

Lubricate the sleeve oLubricate the sleeve o ringringWipe lapped face of seal perfectly clean, taking care not to damage the surfaceFit seal 'Z' from end of shaft or shaft step, ensuring it is perfectly square to axis of shaftEvenly tighten grubscrewsAssemble pump taking care not to damage rotating seal unitOffer end cover to face of stuffing box. Check gap before compressing seal with 'A' dimension in fitting instructionsIf incorrect, dismantle pump and start againIf correct, tighten nuts on gland studsCross fingers

Lubricate the sleeve oLubricate the sleeve o--ringringSlide cartridge onto shaftSlide cartridge onto shaftAssemble the pumpAssemble the pumpAssemble the pumpAssemble the pumpTighten nuts on gland studsTighten nuts on gland studsTighten set screwsTighten set screwsRemove setting clip screws.Remove setting clip screws.

513513513

Cartridge SealsCartridge SealsFitting Conventional Mechanical Seals

Mark position of face of stuffing box on shaftDismantle pumpLubricate tertiary sealFit seat in end cover - ensure fully home and squareCheck seat is correctly located on anti-rotation pinMeasure distance from front of end cover gasket to seat ('X') taking care not to scratch lapped face

Common knowledge:Common knowledge:th f f tl lth f f tl l

Measure distance from front of end cover gasket to seat ( X ) taking care not to scratch lapped faceLook up seal working length in fitting instructions (L3)Add 'X' to L3 (or subtract depending on pump design) and note dimension ('Y')Measure 'Y' from mark on shaft towards impellerMark shaft in this positionMeasure from this mark to end of shaft, or nearest step towards impeller and note dimension ('Z')Carefully wipe lapped face of seat perfectly cleanPlace end cover on shaft taking care not to damage seatLightly lubricate shaft and secondary sealSlide seal unit on to shaft, ensuring it is the right way roundWipe lapped face of seal perfectly clean taking care not to damage the surface

Fitting Cartridge Seals

Lubricate the sleeve o ring

Fitting Cartridge Seals

Lubricate the sleeve o ring

the faces are perfectly cleanthe faces are perfectly clean

the seal is set to the correct working lengththe seal is set to the correct working lengthWipe lapped face of seal perfectly clean, taking care not to damage the surfaceFit seal 'Z' from end of shaft or shaft step, ensuring it is perfectly square to axis of shaftEvenly tighten grubscrewsAssemble pump taking care not to damage rotating seal unitOffer end cover to face of stuffing box. Check gap before compressing seal with 'A' dimension in fitting instructionsIf incorrect, dismantle pump and start againIf correct, tighten nuts on gland studsCross fingers

Lubricate the sleeve o-ringSlide cartridge onto shaftAssemble the pump

Lubricate the sleeve o-ringSlide cartridge onto shaftAssemble the pump

the seal is square on the shaftthe seal is square on the shaft

the seat is correctly fitted and located on pinthe seat is correctly fitted and located on pinp pTighten nuts on gland studsTighten set screws

p pTighten nuts on gland studsTighten set screws

the seal has been fully pressure tested, sothe seal has been fully pressure tested, so

you know it will workyou know it will workRemove setting clips.Remove setting clips.no premature failures due to installation no premature failures due to installation

problemsproblems

Fitted faster than any conventional seal.Fitted faster than any conventional seal.

Cartridge SealsCartridge Seals

Warnings:Warnings:

Check gland plate face oCheck gland plate face o--ring/gasket is fittedring/gasket is fitted

Remember to remove setting device(s)Remember to remove setting device(s)Remember to remove setting device(s)Remember to remove setting device(s)

Keep setting devices for seal removalKeep setting devices for seal removal

Type 5600 RangeType 5600 RangeType 5600 RangeType 5600 Range


Single OSingle O--Ring Type 5610Ring Type 5610

.

Single OSingle O--Ring Type 5610Ring Type 5610

.

Single Metal Bellows Type 5615Single Metal Bellows Type 5615

.

Dual ODual O--Ring Type 5620Ring Type 5620

.

Dual ODual O--Ring Type 5620 Oversized BoreRing Type 5620 Oversized Bore

Pumping Ring Pumping Ring OptionOption

..

Single Elastomer Bellows Type 5611Single Elastomer Bellows Type 5611

.

Type 5600 rangeType 5600 rangeType 5600 range.Type 5600 range.

56prog.exe

Program loading. Please wait . . .Program loading. Please wait . . .Program loading. Please wait . . .Program loading. Please wait . . .

Modular Family Of CartridgesModular Family Of Cartridges

TypeType CommentsComments56105610 Single oSingle o--ringring flush glandflush gland

VersionVersion56105610 Single oSingle o ring ring flush glandflush gland

5610Q5610Q Single oSingle o--ring w / Quench ring w / Quench flush, quench & drainflush, quench & drain

56205620 Dual oDual o--ringring double or tandem operationdouble or tandem operation

5620PR5620PR D lD l i / P i Rii / P i Ri d bl t d tid bl t d ti5620PR5620PR Dual oDual o--ring w / Pumping Ringring w / Pumping Ring double or tandem operationdouble or tandem operation

56115611 Single elastomer bellowsSingle elastomer bellows flush glandflush gland5620USP5620USP Dual oDual o--ring w / Upring w / Up--Stream PumpingStream Pumping double or tandem operationdouble or tandem operation

5611Q5611Q Single elastomer bellows w / QuenchSingle elastomer bellows w / Quench flush, quench & drainflush, quench & drain

56155615 Single metal bellowsSingle metal bellows flush glandflush gland

5615Q5615Q Single metal bellows w / Quench Single metal bellows w / Quench flush, quench & drainflush, quench & drain56 5Q56 5Q g Qg Q qq

56255625 Dual metal bellows Dual metal bellows double or tandem operationdouble or tandem operation

5625PR5625PR Dual metal bellows w / Pumping RingDual metal bellows w / Pumping Ring double or tandem operationdouble or tandem operation

Type 5620 SealType 5620 Seal

9. Remove and keep the four cap head screws and four spacers.

Spacers must be removed before rotating the shaft by hand or starting thepump.+!

Spiral GrooveSpiral GrooveSpiral Groove Spiral Groove TechnologyTechnology

Fluid Sealing with Gas Fluid Sealing with Gas BarrierBarrier


Spiral Groove SealsSpiral Groove Seals

Double pressurised sealDouble pressurised seal

Cartridge sealCartridge seal

Gas lubricatedGas lubricated

NonNon--contacting facescontacting faces

i ii iZero emissionsZero emissions

For all major pump standardsFor all major pump standards

DIN; ISO; ANSI; small and large sectionDIN; ISO; ANSI; small and large section

Simple gas barrier supply systemSimple gas barrier supply systemSimple gas barrier supply system.Simple gas barrier supply system.

Spiral Groove PrinciplesSpiral Groove Principles

The spiral grooves are the heart of the The spiral grooves are the heart of the nonnon contacting designcontacting designnonnon--contacting designcontacting design

Precision depth grooves generate liftPrecision depth grooves generate liftNo wear or frictional heat generationNo wear or frictional heat generationNo wear or frictional heat generationNo wear or frictional heat generationGrooves can rotate or be stationaryGrooves can rotate or be stationary

Spiral Groove GeometrySpiral Groove Geometry

2d.aas

22--D Spiral Groove GeometryD Spiral Groove Geometryp yp y

Spiral Groove Seal TheorySpiral Groove Seal TheoryClean dry gas enters hereClean dry gas enters here

The grooves pump gas The grooves pump gas across the facesacross the faces

The faces lift The faces lift -- no contact.no contact.

Sealing InterfaceSealing Interface

Approx 0 003mmApprox 0 003mm

Closing ForceClosing Force

Approx. 0.003mmApprox. 0.003mm

Opening ForceOpening Force

CompressionCompression

ExpansionExpansion

Spring LoadSpring Loadand Hydrostaticsand Hydrostatics



Closing ForceClosing Force

Increased Increased Opening ForceOpening Force





Closing ForceClosing ForceBalanced Opening Balanced Opening Force RestoredForce Restored





Closing ForceClosing ForceReducedReducedOpening ForceOpening Force





Closing ForceClosing ForceBalanced Opening Balanced Opening Force RestoredForce Restored



Normal Running ConditionNormal Running Condition

Gas Inboard Seal

Product

Gas Pressure higher than Product Pressure

Reverse Pressure ConditionReverse Pressure Condition

Inboard Seal Gas

Product

Product Pressure higher than Gas Pressure

The Standard Type 2800EThe Standard Type 2800E

For DIN & ANSI Standard narrow seal chambersFor DIN & ANSI Standard narrow seal chambers

Temperature:Temperature: --4040°°C to +260C to +260°°CCPressure:Pressure: Full vacuum to 16 bar gFull vacuum to 16 bar gSpeed:Speed: 3 m/s to 25 m/s3 m/s to 25 m/s

Type 2800E SealType 2800E Seal

..

Application Application -- SolidsSolids

Up to 2% solids by volumeUp to 2% solids by volume

use standard sealuse standard seal

O 2% d 20% lid b lO 2% d 20% lid b lOver 2% and up to 20% solids by volumeOver 2% and up to 20% solids by volume

use seal fitted with expeller (2800E)use seal fitted with expeller (2800E)p ( )p ( )

use neck bush restrictor (2800)use neck bush restrictor (2800)

use Upuse Up--Stream PumpingStream Pumping

Solids size range 10 microns to 1 mmSolids size range 10 microns to 1 mmSolids size range 10 microns to 1 mmSolids size range 10 microns to 1 mm..

Application Application -- SolidsSolids

Expeller is fitted to the sleeve with anExpeller is fitted to the sleeve with anAlloy CAlloy C--276 tolerance strip and276 tolerance strip andAlloy CAlloy C--276 tolerance strip and276 tolerance strip and

projects into seal chamber by 36 mm.projects into seal chamber by 36 mm.

Type 2800Ex Slurry TestsType 2800Ex Slurry Tests

Type 2800E / 2800ExType 2800E / 2800Ex

Without Solids Handling device With Solids Handling DeviceWithout Solids Handling device With Solids Handling Device

Type 2800EType 2800E

2800e.aas

CStedy / CTrans AnalysisCStedy / CTrans AnalysisCStedy / CTrans AnalysisCStedy / CTrans Analysis

The Standard Type 2800The Standard Type 2800

For DIN & ANSI Standard large bore seal chambersFor DIN & ANSI Standard large bore seal chambers

Setting Setting clips clips removedremoved

<0.08mm<0.08mm

Stationary mating ringsStationary mating ringsOO--rings:rings: fluorocarbon orfluorocarbon or Stationary mating rings Stationary mating rings sintered silicon carbidesintered silicon carbide

OO gg uo o a bo ouo o a bo operfluoroelastomer.perfluoroelastomer.

The Standard Type 2800The Standard Type 2800

For DIN & ANSI Standard large bore seal chambersFor DIN & ANSI Standard large bore seal chambers

Temperature:Temperature: --4040°°C to +260C to +260°°CCPressure:Pressure: Full vacuum to 21 bar g*Full vacuum to 21 bar g*Speed:Speed: 3 m/s to 25 m/s3 m/s to 25 m/s

..*High Pressure version up to 42 bar g*High Pressure version up to 42 bar g

Standard Type 2800Standard Type 2800

..

Type 2800E SealType 2800E Seal

Gas supply Gas supply systemsystemsystemsystem

Cognis Performance Chemicals, Hythe, UKCognis Performance Chemicals, Hythe, UKA successful solution to their polymerisationA successful solution to their polymerisationA successful solution to their polymerisation A successful solution to their polymerisation problem using the Type 2800E sealproblem using the Type 2800E seal

Type 28SCType 28SC

Dry Running Secondary Containment SealDry Running Secondary Containment Seal

Type 28SCType 28SC

Typical Type 48MP / Type 28SC Tandem InstallationTypical Type 48MP / Type 28SC Tandem Installation

CK728G


UpUp--Stream PumpingStream Pumping


Conventional SealConventional Seal

..


..


..


..


Rotation

essu

re

essu

re

essu

re

Bar

rier f

luid

pre

Proc

ess

pre

Max

imum

pre

..

B


..


..


Type 5620USPType 5620USP

.

560560560


Process

Pre

ssu

re

Process

BarrierAtmos

.

Up-Stream Pumping action Minimal leakage


T dT d

RE1. Process into barrier fluid

TandemTandem

PRES

SU2. Low pressure barrier fluid

UpUp--StreamStream

1. Barrier fluid into process2. Low pressure barrier fluid

.

ppPumpingPumping

p


dd

1 Barrier fluid into process1 Barrier fluid into process

Pressurised Pressurised doubledouble

1. Barrier fluid into process1. Barrier fluid into process2. High barrier pressure2. High barrier pressure

UpUp--StreamStream

1. Barrier fluid into process1. Barrier fluid into process2. Low barrier pressure2. Low barrier pressure

..

ppPumpingPumping

2. Low barrier pressure2. Low barrier pressure


.

UpUp--Stream PumpingStream PumpingPumping Rates - Varying Speed

12

Pumping Rates - Varying Viscosity

12

6

8

10

ml/m

in

3600 rpm1800 rpm

6

8

10

ml/m

in

1.0 cp10 cp

2

4

6

Flow

-

2

4

6

Flow

- m

00 2 4 6 8 10 12 14

Process Pressure - Bar g

00 2 4 6 8 10 12 14

Process Pressure - Bar g

ViscosityViscosity :: 1.0 cp1.0 cpBarrier Temperature:Barrier Temperature: 4040°°CCBarrier Pressure:Barrier Pressure: 0 bar g0 bar g

Speed:Speed: 3600 rpm3600 rpmBarrier Temperature:Barrier Temperature: 4040°°CCBarrier Pressure:Barrier Pressure: 0 bar g0 bar g


Advantages over glandless pumps

Allows easy retrofitting of existing pumpsAllows easy retrofitting of existing pumps

Greater pump efficiencyGreater pump efficiency

Ability to handle abrasive and high viscosityAbility to handle abrasive and high viscosityy g yy g y

Longer bearing life.Longer bearing life.Longer bearing life.Longer bearing life.

SummarySummary

Low heat generationLow heat generation

SelfSelf--flushing designflushing design

Low running and starting torqueLow running and starting torque

Low energyLow energy

Minimal maintenanceMinimal maintenanceMinimal maintenanceMinimal maintenance

SafetySafetyyy

Type 28VLType 28VL

..

Typical example: Ethane; 27.7 bar a; Typical example: Ethane; 27.7 bar a; --4949°°C to +52C to +52°°CC

Cryogenic SealingCryogenic Sealing

Type 285Type 285

Spiral Groove Spiral Groove TechnologyTechnologyS l GS l GSealing Gas Sealing Gas

Compressors andCompressors andCompressors and Compressors and TurboTurbo--MachineryMachinery


Gas Compressor SealingGas Compressor Sealing

..Type 28ATType 28ATType 28ATType 28AT

Type 28AT Seal Design FeaturesType 28AT Seal Design FeaturesCompliant Compliant balanced balanced stationary carbon stationary carbon primary ring design providing maximum primary ring design providing maximum flexibilityflexibility

Logarithmic spiral or Logarithmic spiral or bibi--directional directional

groovesgrooves

Tungsten carbide or silicone carbide Tungsten carbide or silicone carbide rotating mating ringrotating mating ring

Type 28AT Tandem + Type 82Type 28AT Tandem + Type 82

Secondary VentSecondary Vent Primary VentPrimary Vent Filtered Process GasFiltered Process GasNN22 BufferBuffer yy yy22

BearingsBearings

Tandem with Labyrinth + Type 82Tandem with Labyrinth + Type 82Secondary Secondary

VentVent Primary VentPrimary Vent Filtered Process GasFiltered Process GasNN22 Buffer (1)Buffer (1)NN22 Buffer (2)Buffer (2)

With external Type 82 or double purged labyrinthWith external Type 82 or double purged labyrinthNo process gas leakage to atmosphereNo process gas leakage to atmosphere


Sealing Steam TurbinesSealing Steam Turbines


Steam Turbine Seal Type 28STSteam Turbine Seal Type 28ST

..

28ST Steam Turbine Seal to 40028ST Steam Turbine Seal to 400ooCC

Over 1000 seals supplied to Over 1000 seals supplied to datedate

S l C diS l C diSeal CodingSeal Coding

Brief OverviewBrief Overview


Seal CodingSeal Coding

John Crane have two coding methodsJohn Crane have two coding methodsSeal Description CodeSeal Description Code

35 mm T2/BR1C1/WM35 mm T2/BR1C1/WMSeal Computer/Order CodeSeal Computer/Order Code

0350/2/0350/2/----/WM/384A/WM/384A

Also:Also:John Crane SealolJohn Crane SealolJohn Crane FlexiboxJohn Crane FlexiboxJohn Crane SafematicJohn Crane Safematic

have their own coding systems at presenthave their own coding systems at presenthave their own coding systems at present.have their own coding systems at present.

Seal Description CodeSeal Description Code

35 mm T2 / B R 1 C 1 / WM35 mm T2 / B R 1 C 1 / WM

MaterialsMaterials

35 mm T2 / B R 1 C 1 / WM35 mm T2 / B R 1 C 1 / WM

Mating ringMating ringSeal sizeSeal size

Seal typeSeal type

g gg gshape/typeshape/type

(Seat)(Seat)

S iS iSecondarySecondary

andandT tiT ti

Mating ringMating ring(Seat)(Seat)

SpringSpring

See page 104See page 104

TertiaryTertiary

Primary ringPrimary ring(Face)(Face)

Metal partsMetal partsexcludingexcluding

(Seat)(Seat)

See page 46 iiiSee page 46 iii..

for mating ringsfor mating rings(Face)(Face) excludingexcludingspringspring

for materialsfor materials


Where Secondary and Tertiary Seals are Where Secondary and Tertiary Seals are different materials, extra letters are addeddifferent materials, extra letters are added

BGR1C1BGR1C1B = Nitrile Secondary SealB = Nitrile Secondary SealG = EP Tertiary SealG = EP Tertiary Seal

If th i d f th t i lIf th i d f th t i lIf there is no code for the materialIf there is no code for the materialUse “X”Use “X”St t X th di it t i l dSt t X th di it t i l dState: X = three digit material codeState: X = three digit material codee.g., X = 207e.g., X = 207


Translate: 48 mm T59B/QAR17H/CETranslate: 48 mm T59B/QAR17H/CESize:Size: 48 mm48 mmSize:Size: 48 mm48 mm

Type:Type: 59B59B

M ti i tM ti i t CECEMating ring type:Mating ring type: CECE

Wedge Wedge (secondary)(secondary):: PTFEPTFE

OO--rings rings (tertiary)(tertiary):: FluorocarbonFluorocarbon

Primary ring:Primary ring: Carbon + resinCarbon + resin

Metal parts:Metal parts: 316 stainless316 stainless

Mating ring:Mating ring: Austenitic cast ironAustenitic cast iron

Springs:Springs: Alloy CAlloy C--276 (Hastelloy).276 (Hastelloy).


Translate: 35 mm T515E/PBRXSTranslate: 35 mm T515E/PBRXS--/BP X=207/BP X=207Size:Size: 35 mm35 mmSize:Size: 35 mm35 mm

Type:Type: 515E515E

M ti i tM ti i t BPBPMating ring type:Mating ring type: BPBP

Metal bellows:Metal bellows: Inconel Alloy 718Inconel Alloy 718

OO--rings:rings: NitrileNitrile

Primary ring:Primary ring: Carbon + resinCarbon + resin

Metal parts:Metal parts: FV520B stainless steelFV520B stainless steel

Mating ring:Mating ring: Sintered silicon carbideSintered silicon carbide

Springs:Springs: No springs No springs (metal bellows)(metal bellows)

Seal Computer/Order CodeSeal Computer/Order Code

0350 /0350 / ------2 /2 / ---- / WM / 384A/ WM / 384A0350 / 0350 / 2 / 2 / / WM / 384A/ WM / 384A

1616--digit code, divided into 5 groupsdigit code, divided into 5 groups


0350 / 2 /0350 / 2 / ---- / WM / 384A/ WM / 384A

MaterialsMaterials

0350 / 2 / 0350 / 2 / / WM / 384A/ WM / 384A

Seal sizeSeal size Material groupMaterial group

Seal typeSeal type

VariantVariantfromfrom

Mating ringMating ringshape/typeshape/type

See page 47See page 47

fromfromstandardstandard

(Seat)(Seat)

See page 46 i forSee page 46 i for

..See page 47See page 47for size codesfor size codes

See page 46 i forSee page 46 i forsample material groupssample material groups


Translate: 0508/109B/Translate: 0508/109B/----/AG/602C/AG/602CSize:Size: 2”2”Size:Size: 22Seal type:Seal type: 109B109BVariant:Variant: StandardStandardVariant:Variant: StandardStandardMating ring type:Mating ring type: AGAGMaterial:Material: QR1S1QR1S1QQ

Wedge/tertiary seal:Wedge/tertiary seal: PTFEPTFEPrimary ring:Primary ring: Carbon/resinCarbon/resinMetal parts:Metal parts: 316 stainless316 stainlessMating ring:Mating ring: Silicon carbideSilicon carbideSprings:Springs: 316 stainless.316 stainless.


Convert to Computer/Order Code:Convert to Computer/Order Code:40 mm T2 / GR1S1 / N40 mm T2 / GR1S1 / NLess Spring Locating RingLess Spring Locating Ring

0400/0400/------2/LL/2/LL/--N/530C or 0400/2/LL/N/530CN/530C or 0400/2/LL/N/530C

Seal variant code “LL” will be found in the Seal variant code “LL” will be found in the front section of the Code Manual:front section of the Code Manual:

““LLess ess LLocating Ring”ocating Ring”

Seal Component Code Seal Component Code (John Crane)(John Crane)

0350 / 095 / 1710350 / 095 / 1710350 / 095 / 1710350 / 095 / 171


Seal Component Code Seal Component Code (John Crane)(John Crane)

0350 / 095 / 1710350 / 095 / 171

MaterialMaterial

0350 / 095 / 1710350 / 095 / 171

Seal sizeSeal size MaterialsMaterials

ComponentComponentPart NumberPart Number

See page 47See page 47 See page 46 i and ii forSee page 46 i and ii for

Part NumberPart Number

See page 47See page 47for size codesfor size codes

See page 46 i and ii forSee page 46 i and ii forsample materialssample materials

John Crane Sealol CodingJohn Crane Sealol Coding

Materials of ConstructionMaterials of ConstructionMaterials of ConstructionMaterials of Construction

Primary Ring Material (Face)Primary Ring Material (Face)Primary Ring Material (Face)Primary Ring Material (Face)

Seal TypeSeal TypeSeal TypeSeal TypeDesign FeaturesDesign FeaturesDesign FeaturesDesign Features

Materials of ConstructionMaterials of ConstructionMaterials of ConstructionMaterials of Construction

670AHC670AHC--SGF307SGF307--2828670AHC670AHC--SGF307SGF307--2828 Seal SizeSeal SizeSeal SizeSeal Size

Mating Ring Material (Seat)Mating Ring Material (Seat)Mating Ring Material (Seat)Mating Ring Material (Seat)

Mating Ring ShapeMating Ring ShapeMating Ring ShapeMating Ring Shapeg g pg g pg g pg g p

Elastomers and GasketsElastomers and GasketsElastomers and GasketsElastomers and GasketsGland MaterialGland MaterialGland MaterialGland Material

Gland StyleGland StyleGland StyleGland Style


Hastelloy C metal partsHastelloy C metal partsHastelloy C metal partsHastelloy C metal parts

Standard carbonStandard carbon--graphitegraphiteStandard carbonStandard carbon--graphitegraphite

Type 670Type 670Type 670Type 670Basic low temp sealBasic low temp seal

Hastelloy C metal partsHastelloy C metal partsHastelloy C metal partsHastelloy C metal parts

1 ¾” size1 ¾” size1 ¾” size1 ¾” size670AHC670AHC--SGF307SGF307--2828670AHC670AHC--SGF307SGF307--2828Silicon carbideSilicon carbideSilicon carbideSilicon carbide

OO--ring groove m/ringring groove m/ringOO--ring groove m/ringring groove m/ringg g gg g gg g gg g g

Fluorocarbon oFluorocarbon o--ringsringsFluorocarbon oFluorocarbon o--ringsrings316SS gland316SS gland316SS gland316SS glandgggg

Flush, quench, throttle bushFlush, quench, throttle bushFlush, quench, throttle bushFlush, quench, throttle bush


609BAC609BAC--SCP307SCP307--050050609BAC609BAC--SCP307SCP307--050050609 high temperature narrow cross section seal 609 high temperature narrow cross section seal Basic high temperature seal less drive lugsBasic high temperature seal less drive lugs609 high temperature narrow cross section seal 609 high temperature narrow cross section seal Basic high temperature seal less drive lugsBasic high temperature seal less drive lugsas c g te pe atu e sea ess d e ugsas c g te pe atu e sea ess d e ugsAM 350 bellows; Carpenter/Nilo shell; 347SS metal partsAM 350 bellows; Carpenter/Nilo shell; 347SS metal partsChemical grade carbonChemical grade carbon--graphite primary ring (face)graphite primary ring (face)

l b d ( l d ) ( )l b d ( l d ) ( )

as c g te pe atu e sea ess d e ugsas c g te pe atu e sea ess d e ugsAM 350 bellows; Carpenter/Nilo shell; 347SS metal partsAM 350 bellows; Carpenter/Nilo shell; 347SS metal partsChemical grade carbonChemical grade carbon--graphite primary ring (face)graphite primary ring (face)

l b d ( l d ) ( )l b d ( l d ) ( )Silicon carbide (Sealide) mating ring (seat)Silicon carbide (Sealide) mating ring (seat)Cushion mating ring typeCushion mating ring typeGrafoil secondary and tertiary seals; Flexitallic gasketGrafoil secondary and tertiary seals; Flexitallic gasket

Silicon carbide (Sealide) mating ring (seat)Silicon carbide (Sealide) mating ring (seat)Cushion mating ring typeCushion mating ring typeGrafoil secondary and tertiary seals; Flexitallic gasketGrafoil secondary and tertiary seals; Flexitallic gasketGrafoil secondary and tertiary seals; Flexitallic gasketGrafoil secondary and tertiary seals; Flexitallic gasketGland material 316SSGland material 316SSGland with flush and quench connections, throttle bushingGland with flush and quench connections, throttle bushing

Grafoil secondary and tertiary seals; Flexitallic gasketGrafoil secondary and tertiary seals; Flexitallic gasketGland material 316SSGland material 316SSGland with flush and quench connections, throttle bushingGland with flush and quench connections, throttle bushingSeal size: 50 mm.Seal size: 50 mm.Seal size: 50 mm.Seal size: 50 mm.

John Crane Sealol Type 43 SealsJohn Crane Sealol Type 43 Seals

043043--XXXXXX--XXXXXX--XXXXXX

Standard Seal Range Standard Seal Range -- John Crane Sealol Type 43John Crane Sealol Type 43



First Digit First Digit -- Seal StyleSeal StyleAA 43 CE Long43 CE Long (UK(UK--Type 1A)Type 1A)BB 43 CE Sh t43 CE Sh t (UK(UK T 2)T 2)BB 43 CE Short43 CE Short (UK(UK--Type 2)Type 2)CC 43 BE43 BEDD 43 FE43 FEEE 43 DIN Short (L43 DIN Short (L11K with correct seat)K with correct seat)GG 43 CU Long43 CU Long (USA(USA--Type 1)Type 1)HH 43 CU Short43 CU Short (USA(USA--Type 2)Type 2)HH 43 CU Short43 CU Short (USA(USA Type 2)Type 2)



Second Digit Second Digit -- Seal ElastomerSeal ElastomerDD EPTEPTFF Fl l tFl l tFF FluoroelastomerFluoroelastomerNN NitrileNitrileVV Neoprene 1Neoprene 1ppWW Neoprene 2Neoprene 2



Third Digit Third Digit -- Seal FaceSeal FaceCC CarbonCarbonSS S lid (S lid)S lid (S lid)SS Sealide (Solid)Sealide (Solid)YY Sealide II (Converted)Sealide II (Converted)



Fourth Digit Fourth Digit -- Seat MaterialSeat MaterialAA Ceramic Aluminium Oxide 96%Ceramic Aluminium Oxide 96%BB C i Al i i O id 99%C i Al i i O id 99%BB Ceramic Aluminium Oxide 99%Ceramic Aluminium Oxide 99%DD Cast IronCast IronRR NiNi--ResistResistSS SealideSealideWW 316 Stainless Steel316 Stainless SteelYY Sealide IISealide IIYY Sealide IISealide IIZZ 1.4104 / DIN x 12CrMoS171.4104 / DIN x 12CrMoS17



Fifth Digit Fifth Digit –– Mating Ring StyleMating Ring StyleAA 013 CU013 CUEE 013 CE013 CEEE 013 CE013 CEHH 011 DIN Short011 DIN ShortJJ 011 BE011 BE

011 Mating Ring011 Mating Ring

KK 013 DIN Short013 DIN ShortLL 011 DIN Long011 DIN LongNN 011 FE011 FENN 011 FE011 FEPP 013 PA013 PA 013 Mating Ring013 Mating Ring



Sixth Digit Sixth Digit –– Mating Ring ElastomerMating Ring ElastomerDD EPTEPTFF Fl l tFl l tFF FluoroelastomerFluoroelastomerNN NitrileNitrileVV Neoprene 1Neoprene 1ppWW Neoprene 2Neoprene 2



Seventh/Eighth/Ninth Digits Seventh/Eighth/Ninth Digits -- SizeSize

Inch Sizes in 1/16” preceded by XInch Sizes in 1/16” preceded by XInch Sizes in 1/16 preceded by XInch Sizes in 1/16 preceded by Xe.g., e.g., --X16 = 1”; X16 = 1”; --X24 = 1.1/2”X24 = 1.1/2”

Metric Sizes preceded by 0Metric Sizes preceded by 0p yp ye.g., e.g., --025 = 25 mm; 025 = 25 mm; --075 = 75 mm075 = 75 mm

John Crane Flexibox CodingJohn Crane Flexibox Coding

RREP 0600 A6CY CBQ / U001RREP 0600 A6CY CBQ / U001



RREP 0600 A6CY CBQ / S001RREP 0600 A6CY CBQ / S001

Seal TypeSeal Type

Seal SizeSeal Size

PostPost--order designorder designcentre and uniquecentre and unique

Seal SizeSeal Size

Face MaterialsFace MaterialsPrePre--order designorder design

design referencedesign referencee.g., S=Swedene.g., S=Sweden

OO--Ring MaterialRing Material

Metal Parts MaterialMetal Parts Material

ee o de des go de des gfeaturesfeaturese.g., B=Safety Bushe.g., B=Safety Bush

Metal Parts MaterialMetal Parts Material..


FacesFaces9C9C High duty carbon vs silicon carbideHigh duty carbon vs silicon carbide9C9C High duty carbon vs silicon carbideHigh duty carbon vs silicon carbideA6A6 Silicon carbide vs plain carbonSilicon carbide vs plain carbon

OO--RingsRingsOO RingsRings

AA NitrileNitrileBB Ethylene PropyleneEthylene Propylene

Flexibox Code Manual

y pyy pyCC FluorocarbonFluorocarbonDD PTFEPTFE

Metal PartsMetal Parts

EE Standard materials for FFETStandard materials for FFETYY Standard materials for specific sealStandard materials for specific seal ..

Seal CodingSeal Coding

And finally . . .And finally . . .

John Crane Inc Drawing NumbersJohn Crane Inc Drawing Numbers

John Crane Inc Drawing NumbersJohn Crane Inc Drawing Numbers

Typical drawings for OEMs and internalTypical drawings for OEMs and internalFF--SD and CFSD and CF--DDFF--SD and CFSD and CF--DD

End users should not rely on dimensionsEnd users should not rely on dimensions

Layout drawings for specific applicationsLayout drawings for specific applicationsLayout drawings for specific applicationsLayout drawings for specific applicationsADAD--SP; KSP; K--SP; FSP; F--SP; CFSP; CF--SP & HSP & H--SPSP

Provide all setting dimensions and operatingProvide all setting dimensions and operatingProvide all setting dimensions and operating Provide all setting dimensions and operating conditionsconditions

OEM Layout drawings for specific manufacturerOEM Layout drawings for specific manufacturerFF--SP; CFSP; CF--SP; HSP; H--SPSP

As above but service conditions often omittedAs above but service conditions often omitted

S l F iliS l F iliSeal FamiliesSeal Families

An IntroductionAn Introduction


or go to Seal Selectionor go to Seal Selection

Seal Family Seal Family -- AA

Elastomer Bellows Seals ( NonElastomer Bellows Seals ( Non--Pusher Design)Pusher Design)

Examples:Examples:

1A1A (to be replaced by USA Type 1)(to be replaced by USA Type 1)

2 2 (to be replaced by USA Type 2)(to be replaced by USA Type 2)

For water oil mildFor water oil mild

5025022100210056115611For water, oil, mild For water, oil, mild

chemicals, sludges, chemicals, sludges, slurries etc.slurries etc.

56115611..

Green = PLM Preferred Product April 2003Green = PLM Preferred Product April 2003

Seal Family Seal Family -- BB

Elastomer OElastomer O--Ring Seals (Pusher Design)Ring Seals (Pusher Design)E amplesE amplesExamples:Examples:

88--11 8B18B188 1T1T 8B1T8B1T88--1T1T 8B1T8B1T58U58U 58B58B

48LP/MP/HP48LP/MP/HP48LP/MP/HP48LP/MP/HP48XP48XP

1648/2648/36481648/2648/3648For water, oil and mild For water, oil and mild chemicals. chemicals. ..

1648/2648/36481648/2648/36485610/56205610/5620

FFETFFET5620USP5620USP

Seal Family Seal Family -- CC

PTFE Bellows Seals (NonPTFE Bellows Seals (Non--Pusher Design)Pusher Design)

Examples:Examples:

10T10T10R10R

For extremelyFor extremely

20R20R

For extremely For extremely corrosive duties.corrosive duties. ..

Seal Family Seal Family -- DD

PTFE Wedge Seals (Pusher Design)PTFE Wedge Seals (Pusher Design)

Examples:Examples:

109 (9)109 (9) 109B (9B)109B (9B)9T9T 9BT9BT

For moderately For moderately

59U59U 59B59B

corrosive corrosive chemicals, chemicals, petroleum and petroleum and

..pet o eu a dpet o eu a dpetrochemicals.petrochemicals.

Seal Family Seal Family -- EE

Formed Metal Bellows (NonFormed Metal Bellows (Non--Pusher Design)Pusher Design)

Examples:Examples:

GL1BGL1BGL1HGL1H515C515C

For water, mild For water, mild

515C515C

,,chemicals, paper, chemicals, paper, stock, slurries, pulp stock, slurries, pulp and paperand paper

..and paper. and paper.

Seal Family Seal Family -- FF

Welded Metal Bellows (NonWelded Metal Bellows (Non--Pusher Design)Pusher Design)

Examples:Examples:

604604 160416046060 6060606606 60960926092609 36093609

For high temperature, For high temperature, h hh h

670670 16701670676676 68068056155615 56255625high pressure, high pressure,

petroleum, petroleum, petrochemical and petrochemical and

56155615 56255625EZEZ--11 ..

pplight corrosives light corrosives

Seal Family Seal Family -- GG

NonNon--contacting Seals (Gas lubricated)contacting Seals (Gas lubricated)

Examples:Examples:

28002800 2800E2800E2800HP2800HP 2802800MB0MB

For volatile fluids in For volatile fluids in

28SC28SC 28LD28LD285285

chemical and chemical and petrochemical petrochemical processesprocesses

..processes. processes.

Mixer / Agitator / Reactor SealsMixer / Agitator / Reactor Seals

Double Cartridge SealsDouble Cartridge SealsExamples:Examples:Examples:Examples:

151151153153157C157C

5280D/GD/W5280D/GD/WCK725/6CK725/6

CK728D/GD/WCK728D/GD/WFor top entry vesselsFor top entry vessels

CK728D/GD/WCK728D/GD/W77007700

Compressor Gas SealsCompressor Gas Seals

Dry Running Gas SealsDry Running Gas Seals

E lE lExamples:Examples:

28AT28AT28AT28AT28BD28BD28XP28XP

Uses patented spiral groove Uses patented spiral groove technology to seal hightechnology to seal high

28EXP28EXP

technology to seal high technology to seal high speed, high pressure speed, high pressure equipment such as equipment such as compressors turbocompressors turbocompressors, turbo compressors, turbo expanders and turbines. expanders and turbines.

Documents

3-Day Gen Open 112003 3a