MECHANICAL SEAL SUPPORT SYSTEMS - PUMPNSEALpumpnseal.com.au/wp-content/uploads/2015/06/MechanicalSeal_Sup… · Chesterton Mechanical Seal Support Systems are designed to optimize

MECHANICAL SEAL SUPPORT SYSTEMSA S S E T O P T I M I Z A T I O N F O R I N C R E A S E D P R O D U C T I V I T Y

2

Single Seals

Single seals operating in harsh processes are most commonly configured to Plan 32, Plan 33 or variants thereof,utilizing plant water supplies as a source of clean cool flush. The plant water line is often connected directly to theseal or stuffing box chamber without adequate controls. Excessive water consumption and accidental loss of flushcan result in premature failure. The Flow GuardianTM provides control and indication of flush supply to ensure themechanical seal is operating in its optimum environment.

Chesterton Mechanical Seal Support Systems

Chesterton Mechanical Seal Support Systems are designed to optimize the seals operating environment in orderto increase its reliability and MTBR.

The fluid film on which the seal operates is critical to its life expectancy; Slurries, Hot Liquids, CrystallizingSolutions, High Viscosity and Solidifying media often require adequately specified Seal Support Systems in orderfor the Mechanical Seal to function correctly.Selecting the correct support system is important. The seal and equipment on which the Seal Support System isbeing operated should be evaluated.

Dual Seals

Water Compatible Processes

Dual Seals are selected when there is a need to modify the seals operatingenvironment and/or contain the process media in the event of a faultcondition.

Many dual mechanical seal are configured to Plan 54, simply using plant waterto cool and lubricate the seal before discharge to drain. Fluctuating waterpressure, water quality and lack of water flow all contribute to reducing theseals MTBR (Mean Time between Repair). Cost can also be a reason forreducing the flow of water as the water consumption can be excessive on aplant wide scale.

The Plan 53P WSS (Water Saving System) connects directly between the plantwater line and mechanical seal creating a closed circuit of water to cool andlubricate the seal without discharging to drain. Savings in water consumptioncompared to an Plan 54, Quench to Drain configuration can be measured andare significant.

Entry level systems increases operating costs

Closed Loop - Measurable efficiency

Other Processes

For dual seals operating in processes not compatible with water, Chesterton has two Support Systems designedto increase a dual mechanical seals MTBR.

The BSS (Buffer Support System) provides non-pressurized isolation and support for processes which cannottolerate product contamination; these are typical foodstuffs and fine chemicals. The PSS (Pressurized SupportSystem) provides pressurized isolation and support for processes where a compatible barrier fluid can be utilizedto keep the seal faces clean and free from the process media.For both the BSS and PSS solutions the selected barrier fluid must be of a suitable viscosity to ensure thatcirculation takes place. The range of Dual Cartridge Mechanical Seals feature internal pumping rings to aidcirculation.

Savings in waterconsumption aresignificant…andmeasurable.“

TABLE OF CONTENTS

Seal Tank Systems

WSS Water Saving System …………..4

BSS Buffer Support System ……….…6

PSS Pressurized Support System ……8

Support Systems

Flow Guardian™ …… ………….….…10

Intelli-Flow™ HT……..………………..11

SpiralTrac™ ……………………..…….12

Environmental Control Plans…………14

Seal Tank System Configurator………15

3

33H 54DM53P53A5233S

Seal Support Systems for Piping plans...

PSS Pressurized Support System

BSS Buffer Support System

WSS Water Saving System

32

WSS Water Saving SystemPlan 53P Automatic Water Support Tank

Preconfigured System & OptionsSimplified Ordering Process

Maintenance Free - Automatic Level andPressure Management

Significantly Reduces Seal Support WaterUsage

Recommended applications

Chemical industry

Pharmaceutical industry

Food and beverage industry

Pulp and Paper Industry

Easy to install, complete solution, for reliable operation ofdual mechanical seals, with minimal water consumption.

The Chesterton WSS is a complete Seal Support System designed tomaintain water barrier pressure and levels without maintenance.Containing all of the equipment required for connection to a dualmechanical seal the WSS installs in 3 Simple Steps.

Featuring a Pressure Regulator, Non-Return Valve and Vent Valve, theWSS isolates the dual mechanical seal from fluctuations in plant watersupplies optimizing the seals operating environment and increasingseal reliability. A flow indicator provides a visual indication of a faultcondition in the dual mechanical seal.

The WSS can be enhanced further with a range of pressure andflow switches to alert operators to a fault condition.

The water is circulated to and from the seal by the thermo-syphoneffect and the mechanical seals Internal Pumping Ring, a standardfeature of Chesterton Dual Mechanical Cartridge Seals.

WSS Configuration

Technical dataTank capacity 12 l / 9 l operating

Vessel operating pressure 16 bar Maximum.

Material 316 Ti / 1.4571

Cooling capacity 400 W

Auxiliary connection 1 x R 1” - 1 x R 1/2”

Water line connection Ø 12 mm Push-in Fitting

Pressure gauge 0-16 bar - Brass

Pressure regulator 0-10 bar - Brass

Flow indicator Stainless Steel

Drain valve R 1/2” - Ni-Cr Plated Brass

Hoses Kit: 1 m & 1,5 m - Polyamide tube 12 mm OD

Seal connections Kit: 2 x NPT 1/2’’ S - Straight push-inconnectors Ni-Cr Plated Brass

Applicable Standards and Approvals PED (97/23/EC) - TÜV

4

Materials & Dimensions

Type Description Code Item NumberTank Water Saving System - with all the components WSS STS-100144

OptionsFilters In Line Water Filter Assembly c/w isolation valves FA STS-100096

Tank StandsFixed Stand - Stainless Steel FS STS-100093Telescopic Vertically and Horizontally Adjustable Stand - Carbon Steel XY STS-100094Telescopic Vertically and Horizontally Adjustable Stand - Stainless Steel XT STS-100095

Piping Kits

Stainless Steel Braided Hose Kit 1 x 1 m and 1,2 m with Fittings BH STS-100147Finned Tube Kit 1 x 1 m with Fittings FT STS-100148Seal connector Kit 2 x NPT 1/4” S⁽¹⁾ - Straight push-in connectors Ni-Cr Plated Brass CSS STS-100150

Seal connector Kit 2 x NPT 3/8” S⁽¹⁾ - Straight push-in connectors Ni-Cr Plated Brass CMS STS-100151

InstrumentationSingle High/Low Pressure Switch For Non Hazardous Area 0-10 bar PS STS-100111

Single High/Low Pressure Switch EExia, Intrinsically Safe, ATEX Certified PU STS-100112

Forced Circulation Circulation Pump CP STS-100091

Ordering Codes for Water Saving System and Options

Operating principle

Water from the plant water line enters theSystem through the non return valve.

The pressure of the barrier fluid in the vessel canbe set via the pressure regulator.

Once at the correct pressure the plantwater line remains connected toautomatically top up and maintain thepressure. Water Consumption is minimal

The barrier fluid is circulated to the seal and backto the system by the thermo-syphon effect.

1 - Pressure gauge2 - Pressure regulator3 - Flow indicator4 - Vent valve5 - Mounting brackets6 - 3 Way valve7 - Drain valve8 - Auxiliaries connections

ConnectionsA - Non return valve (water line connection)B - To the mechanical sealC - From the mechanical seal

All dimensions are in mm

5

1

2

A

3

4 5

6

7

C

B

8

520

530

280

57

10

15200

Ø 11

⁽¹⁾ Angled swivel joint push-in connectors are available

BSS Buffer Support SystemPlan 52 Non-Pressurized Tank

BSS Configuration

Pre configured system, simplifiedordering process.

Simple Maintenance of Fluid Level


Chemical industry




Technical data

Tank capacity 12 l / 9 l operating

Vessel operating pressure 16 bar max.

Material 316 Ti/1.4571

Cooling capacity 400 W vessel only 1.5 kW with Cooling Coil 4 kW with Cooling coil & Circulation pump

Auxiliary connection 1 x R 2” & 1 x R 1/8”

Fluid line connection 12 mm Ø Push-in Fitting


Level gauge Reflex Sight Glass

Fill valve R 1/2” - Ni-Cr Plated Brass


Hoses Kit (1 m & 1,5 m) - Polyamide 12 mm OD

Seal connections 2 x NPT 1/2’’ S - Straight push-in connectorsNi-Cr Plated Brass


Easy to install, complete non-pressurized solution, forreliable operation of dual mechanical seals.

The Chesterton BSS for Dual Mechanical Seals is a complete solutionfor the environmental support of Dual Mechanical seals whereproduct contamination from support fluid cannot be tolerated.

Supplied ready to install the BSS is pre-configured to allow simpleconnection and non pressurized support to a dual mechanical seal.A dedicated Fill Valve allows quick and easy commissioning of theseal and system arrangement.

The BSS can be enhanced further with a complete range ofaccessories designed for easy configuration and reducedmaintenance. ATEX certified instrumentation is also available.

The support fluid is circulated to and from the seal by thethermosyphon effect and the Mechanical Seals Internal PumpingRing, a standard feature of Chesterton Dual Mechanical CartridgeSeals

6

1 - Pressure gauge2 - Mounting brackets3 - Level gauge4 - Drain valve5 - Auxiliary connection

ConnectionsA - Fill valveB- To the mechanical sealC - From the mechanical seal


Operating principle

Connect the system to the seal and addthe support fluid via the fill valve until itis at the required level on the glass

The support fluid is circulated bythermo-syphon effect or externalcirculation system to absorb productleakage.

Type Description Code Item Number

TankBuffer Support System - with all the components BSS STS-100142Buffer Support System with Cooling Coil - with all the components BSSC STS-100143

Options


Piping Kits

Stainless Steel Braided Hose Kit 1 x 1 m and 1,2 m with Fittings (2 x NPT 1/2”) BH STS-100147Finned Tube Kit 1 x 1 m with Fittings (2 x NPT 1/2”) FT STS-100148Seal connector Kit 2 x NPT 1/4” S ⁽¹⁾ - Straight push-in connectors Ni-Cr Plated Brass CSS STS-100150Seal connector Kit 2 x NPT 3/8” S⁽¹⁾ - Straight push-in connectors Ni-Cr Plated Brass CMS STS-100151

Instrumentation

Low Level Switch For Non Hazardous Area LS STS-100107High/Low Level Switch For Non Hazardous Area LT STS-100108High/Low Level Switch EExia, Intrinsically Safe, ATEX Certified LW STS-100109Single High/Low Pressure Switch For Non Hazardous Area 0-10 bar PS STS-100111Single High/Low Pressure Switch EExia, Intrinsically Safe, ATEX Certified PU STS-100112

Refill PumpsHand Pump Assembly for Oil Based Fluid HO STS-100113Hand Pump Assembly for Water Based Fluid HW STS-100113


Ordering Codes for Buffer Support System and Options


7

1

2

C

3

B

A

4

5

57

100

150

200

310

510

320

Ø 11


PSS Pressurized Support SystemPlan 53 Standard Tank

Easy to install, complete pressurized solution, for reliableoperation of dual mechanical seals.

The Chesterton PSS for Dual Mechanical Seals is a complete solution forthe support of Dual Mechanical seals where product leakage cannot betolerated.

Supplied ready to install the PSS features a Non Return Valve, PressureRegulator with Gauge and Pressure Relief Valve. A dedicated Fill Valveallows quick and easy commissioning of the seal and systemarrangement.

The PSS can be enhanced further with a complete range of accessoriesdesigned for easy configuration and reduced mainentance. ATEX certifiedlevel and pressure switches are also available.

The support fluid is circulated to and from the seal by the thermo-syphoneffect and the Mechanical Seals Internal Pumping Ring, a standard featureof Chesterton Dual Mechanical Cartridge Seals

Pre configured system, simplifiedordering process.

Simple Maintenance of Fluid Level

Standard Plan 53A Tank


Chemical industry




Technical data

Tank capacity 12 l/9 l operating

Vessel operating pressure 16 bar max.

Material 316 Ti/1.4571

Cooling capacity 400 W vessel only 1.5 kW with Cooling Coil 4 kW with Cooling coil & Circulation pump

Auxiliary connection 1 x 2”R & 1 x 1/8”R


Pressure regulator 0-16 bar - Brass

Level gauge Reflex Sight Glass

Fill valve R 1/2” - Ni-Cr Plated Brass


Hoses Kit (1 m & 1,5 m) - Polyamide 12 mm OD

Seal connections 2 x NPT 1/2’’ S - Straight push-in connectors Ni-CrPlated Brass


PSS - Configuration

8

1 - Pressure gauge2 - Pressure regulator3 - Level gauge4 - Drain valve5 - Mounting brackets6 - Auxiliary connections

ConnectionsA - Fill valveB - To the mechanical sealC - From the mechanical seal


Operating principle

Connect the system to the seal and add thesupport fluid via the fill valve until it is at therequired level on the glass

Close the fill valve and connect the air ornitrogen supply and adjust the regulator tothe required pressure

The barrier fluid is circulated by thermo-siphon effect or external circulation system tocool the seal.

Type Description Code Item Number

TankPressurized Support System - with all the components PSS STS-100140Pressurized Support System with Cooling Coil- with all the components PSSC STS-100141

Options


Piping Kits

Stainless Steel Braided Hose Kit 1 x 1 m and 1,2 m with Fittings (2 x NPT 1/2”) BH STS-100147Finned Tube Kit 1 x 1 m with Fittings (2 x NPT 1/2”) FT STS-100148Seal connector Kit 2 x NPT 1/4” S⁽¹⁾ - Straight push-in connectors Ni-Cr Plated Brass CSS STS-100150Seal connector Kit 2 x NPT 3/8” S ⁽¹⁾ - Straight push-in connectors Ni-Cr Plated Brass CMS STS-100151

Instrumentation

Low Level Switch For Non Hazardous Area LS STS-100107High/Low Level Switch For Non Hazardous Area LT STS-100108High/Low Level Switch EExia, Intrinsically Safe, ATEX Certified LW STS-100109Single High/Low Pressure Switch For Non Hazardous Area 0-10 bar PS STS-100111Single High/Low Pressure Switch EExia, Intrinsically Safe, ATEX Certified PU STS-100112

Refill PumpsHand Pump Assembly for Oil Based Fluid HO STS-100113Hand Pump Assembly for Water Based Fluid HW STS-100113


Ordering Codes for Pressurized Support System and Options


9

57

100

150

200

590

320

310

6

C

3

B

A

4

2 5

1

Ø 11


Extends seal performance by deliveringuninterrupted regulated seal flush water

Built-in pressure regulator

Innovative plunger cleaner

Oil filled pressure gauge

Tamper proof locking system

Alarm sensor-ready

Standard Plan 54DM (DP50)

Standard Plan 32 & 33S (SP50)


Chemical industry




10

Specifically designed to supply uninterrupted, regulated sealflush water and deliver operational efficiency to the pumppopulation.

Managing flow rates while regulating important pressure differentials ispossible. Costly seal failures are reduced while assisting in plant waterconservation initiatives.

There is a Flow Guardian for every application. The DP50 Dual Flow Guardianis designed to measure flow entering and exiting a dual seal installation. Thiscapability allows for early detection of leakage into the process stream as aresult of inboard seal failure.The SP50 Single Flow Guardian can also regulate flow and pressure and isideal for single seal installations, or when inboard seal failure detection is ofless importance.

Plan 32/33S/54DM

Flow Guardian™

Technical dataOperating parametersFlow rate 0,1 - 3 l/min / 2 - 50 US gphPressure limit 10 bar g / 145 psig*Temperature limit 100°C/21°FMaterials of constructionFlowmeter tube Polysulfone (PSU)Body of Unit Polyoxymethylene (POM)O-rings Fluorocarbon (FKM)Pressure Gauge Oil filled with 316SS Stainless Steel Case and Wetted

Parts, 1/4" – NPT Bronze fittingPressure Regulating Valve 316 Stainless Steel / EN 1.4401Flow Rate Regulating Valve 316 Stainless Steel / EN 1.4401Clean-out Plugs 320 - 3/8" Tube Fittings (for compression connections)

316 Optional Barb Fittings

Mounting Bracket 316 Stainless Steel / EN 1.4401* Seal pressure capabilities are dependent on the fluid sealed, temperature, speed, and seal facecombinations..

For operation outside the limits and additional materials consult Chesterton Mechanical SealEngineering.

Flow Guardian™Selection

SP50

DP50

Type Description Item Number

SP50 with Compression Fitting Connectors Single Tube with Pressure Valve 199802SP50 with Hose Barb Connector Single Tube with Pressure Valve and Plunger Cleaner 199805DP50 with Compression Fitting Connectors Dual Tube with Pressure Valve 199803DP50 with Hose Barb Connector Dual Tube with Pressure Valve and Plunger Cleaner 199806

11

Clean in place

Maintenance-free

Easy to install

95% water savings compared to openbarrier fluid supply


Chemical industry


Water Saver

Features a thermally activated valve that automatically drains hotbarrier fluid (only when necessary) to keep dual seals running cool andreliable. Valve opening temperature preset to work with S20 Seals.

Intelli-Flow™ HT

Technical data

Operating Parameters

Pressure limit 20.7 bar g / 300 psig*Temperature limit 125°C / 257°FTemperature set point 80°C/176°FConnections 1/4” NPTMaterials of construction

Body 303 Stainless Steel / EN 1.4305Bushing 316 Stainless Steel / EN 1.4401Hose Barb Fitting 316 Stainless Steel / EN 1.4401

* Seal pressure capabilities are dependent on the fluid sealed, temperature, speed, and seal facecombinations.

For operation outside the limits and additional materials consult Chesterton Mechanical SealEngineering.

Type Description Item Number

Intelli-Flow HT Water Saver Assembly with Integrated Flush Housing 319831

1 Air Vented from cavity when pump is stationary (eliminatescrystalization, coking overheating due to air)

2 Circulation Driven around seal (excellent face cooling)

3 Exchange In and out of cavity (heat removed from cavity)

4 Particulate Immediately removed from cavity through the exit groove, flushor no flush

Plan 33H/33S

When used with Chesterton® mechanical seals, SpiralTrac™ EnvironmentalControllers greatly enhance seal reliability by effective removal of solidsand improved cooling of the stuffing box.

Extends seal reliability in most rotatingequipment applications

Reduces cost of flushing in abrasiveapplications

Fits all rotating equipment

Plan 33H SpiralTrac ™ Version D type I

Plan 32/33S SpiralTrac™ Version F Type S

Spiraltrac™

Material of constructions316 Stainless Steel / EN 1.4401316 Stainless SteelPTFE - Glass FilledPTFE - Carbon Graphite FilledBronzeAWC800—Red PolymerMonel K400/EN 2.4360

For operation outside the limits andadditional materials consult ChestertonMechanical Seal Engineering

Operating Parameters

Version F (Split) Greatly reduce flush

Version N Reduced/No flush in non fibrous fluids

Version D Reduced/No flush in fibrous fluids

Version P Use packing only

Arrangements

Type A Counter bore fit

Type B Bore fit

Type S Axial split

Type I Impeller side installation

Type E Externally Keyed

Configuration Options

Split Adapter Version N Packing

12

13

SpiralTrac™ Configuration option

Version F Type S

Requires minimal flush

Split for easy installation

Ideal for use with split mechanicalseals

No modifications required to pumpor seal cavity

Version N / D Type A

Requires minimal or no flush

Replaces removable throat bushings

Some machining modifications maybe required to pump or seal cavitydepending on application


Enables venting of air from the sealcavity

Designed to replace keyed throatbushings in split case pumps

No modifications required to pumpor seal cavity


Enables venting of air from theseal cavity

Installs from the seal side of theseal cavity

Greatly reduced flush in non-fibrous applications

Version N / D Type I


Installs form the impeller side ofthe seal cavity

Enables venting of air from theseal cavity

Some machining modificationsrequired to pump or seal cavity

Version N Type B


Split for easy installationIdeal for use with split mechanicalsealsNo modifications required to pumpor seal cavityInstalls between the seal cavity andthe mechanical seal

Version N Type E

Adapter

PLAN 54DM—Circulation withPressurized External Barrier Fluid Sourceand Flow Guardian™ DP50

PLAN 53A—Circulation with ExternalBuffer Fluid Tank

PLAN 53P—Circulation withPressurized External Barrier Fluid Tank

PLAN 52—Circulation with ExternalBuffer Fluid Tank

PLAN 33S—SpiralTrac™ Version FType S and Flow Guardian SP50

PLAN 32—Clean flushwith Flow Guardian SP50

Environmental Control Plans

PLAN 33H—SpiralTrac™ Version DType I

14

PSS

Tank Type

WSS Water Saving SystemBSS Buffer Support SystemBSSC Buffer Support System with

Cooling CoilPSS Pressurized Support SystemPSSC Pressurized Support System with

Cooling Coil

XX XY

Type code – example

Type code – explanation

Seal Tank System Configurator

XX XY –BH HW LS - PS––––

PSS Tank Option

FA In Line Water FilterAssembly c/w isolation valves

XX No option required

– – Tank Stand Option

FS Fixed Stand - Stainless SteelXY Telescopic Vertically and Horizontally

Adjustable Stand - Carbon SteelXT Telescopic Vertically and Horizontally

Adjustable Stand - Stainless SteelXX No option required

–

–BH HWCMS–Piping Kit Option

BH Stainless Steel BraidedHose Kit 1 x 1 m and1,2 m with Fittings

FT Finned Tube Kit1 x 1 m with Fittings


Refill Pump Option

HO Hand Pump Assemblyfor Oil Based Fluid

HW Hand Pump Assemblyfor Water Based Fluid


Only compatible with WSS Only compatible with BSS/C & PSS/C

15

CMS –

–Seal Connector Kit Option

CSS Seal connector Kit 2 x NPT 1/4” S -Straight push-in connectors Ni-Cr Plated Brass

CSA Seal connector Kit 2 x NPT 1/4” A -Angled swivel joint push-inconnectors Ni-Cr Plated Brass

CMS Seal connector Kit 2 x NPT 3/8” S -Straight push-in connectors Ni-Cr Plated Brass

CMA Seal connector Kit 2 x NPT 3/8” A -Angled swivel joint push-inconnectors Ni-Cr Plated Brass


Instrumentation Option (maximum 2 selectable)

LS Low Level Switch For Non Hazardous AreaLT High/Low Level Switch For

Non Hazardous AreaLV Low Level Switch EExd, Flameproof,

Zone 1 Div. 1, ATEX CertifiedLW High/Low Level Switch EExia,

Intrinsically Safe, ATEX CertifiedPS Single High/Low Pressure Switch For

Non Hazardous Area 0-10 barPU Single High/Low Pressure Switch EExia,

Intrinsically Safe, ATEX CertifiedXX No option required

LS - PS

Global Solutions, Local Service

Since its founding in 1884, the A. W. Chesterton Company hassuccessfully met the critical needs of its diverse customer base.Today, as always, customers count on Chesterton solutions toincrease equipment reliability, optimize energy consumption,and provide local technical support and service wherever theyare in the world.

Chesterton’s global capabilities include:

● Servicing plants in over 100 countries

● Global manufacturing operations

● More than 500 Service Centers and Sales Offices worldwide

● Over 1200 trained local Service Specialists and Technicians

Visit our website at www.chesterton.com

Chesterton ISO certificates available onwww.chesterton.com/corporate/iso

SpirlTrac™ is a registered trademark of EnviroSeal Engineering Products Limted.

Technical data reflects results of laboratory tests and is intended to indicate generalcharacteristics only. A.W. Chesterton Company disclaims all warranties expressed, orimplied, including warranties of merchantability and fitness for a particular purpose oruse. Liability, if any, is limited to product replacement only. Any images contained hereinare for general illustrative or aesthetic purposes only and are not intended to convey anyinstructional, safety, handling or usage information or advice respecting any productor equipment. Please refer to relevant Safety Data Sheets, Product Data Sheets, and/orProduct Labels for safe use, storage, handling, and disposal of products, or consult withyour local Chesterton sales representative.

© A.W. Chesterton Company, 2013. All rights reserved.

® Registered trademark owned and licensed by A.W. Chesterton Companyin USA and other countries, unless otherwise noted.

A.W. Chesterton Company860 Salem StreetGroveland, MA 01834 USA

Telephone: 781-438-7000Fax: 978-469-6528www.chesterton.com

Form No. EN23566Seal Tank SystemsBrochure – English09/14

http://www.pumpnseal.com.au/products/mechanical-seals/

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MECHANICAL SEAL SUPPORT SYSTEMS - PUMPNSEALpumpnseal.com.au/wp-content/uploads/2015/06/MechanicalSeal_Sup… · Chesterton Mechanical Seal Support Systems are designed to optimize