Pump & Pump Piping Presentation

7/21/2019 Pump & Pump Piping Presentation

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PUMPS

&

PUMP PIPINGBy,

Sandeep More Associate Engineer

Piping Department

Date 4th Dec 2006



ContentsContents

PumpPump

- Introduction to Pumps- Introduction to Pumps

- Classifcation o Pump- Classifcation o Pump

- Industry Codes & Standards- Industry Codes & Standards

- Selection Criteria or Pumps- Selection Criteria or Pumps

- NPSH & Cavitation- NPSH & Cavitation

- Defnitions- Defnitions

Pump PipingPump Piping

Suction piping or horizontal pumpsSuction piping or horizontal pumps Discharge piping or horizontal pumpsDischarge piping or horizontal pumps rrangements o piping or pump handling hot suctions! rrangements o piping or pump handling hot suctions! Side suction & side discharge pumpSide suction & side discharge pump "ertical In line pumps "ertical In line pumps "ertical pump #$et $ell pump% "ertical pump #$et $ell pump%

"ertical arrel type or Cane pump "ertical arrel type or Cane pump 'ulti Service pump'ulti Service pump (eciprocating pump Piping(eciprocating pump Piping 'etering Pump'etering Pump Pumps in the )an*age reaPumps in the )an*age rea u+iliary pump piping arrangement u+iliary pump piping arrangement Pipe vent & drain SystemPipe vent & drain System Pump ,ocation & rrangementPump ,ocation & rrangement Pump Surrounding SupportPump Surrounding Support



Intoduction To Pump :Intoduction To Pump :

Pump is a mechanical device used to add *inetic andpotential energy to a liuid or the purpose o moving it romone point to another! )his energy .ill cause the liuid to do.or* such as /o. through a pipe or rise to a higher level andPump gives pressure to /uid passing through it and discharges

the /uid to the outside!

Defnition 0

Pumps are classifed on the 1asis o 0-2 )he applications they serve3

2 )he liuids they handle3

2 4rientation & Construction2 No! o stages3 No! o casings3 )ype o couplings #(igid 3

5le+i1le%

1) Dynamic 2) Displacement

Classifcation OPump :



DynamicPumps :

In .hich energy is continuouslyadded to increase the /uid velocities .ithin the machine to values greater than those

occurring at the discharge suchthat su1seuent velocity reduction.ithin or 1e ond the um

Displacement Pump :

In .hich energy is periodically added 1yapplication o orce to one or moremova1le 1oundaries o any desirednum1er o enclosed3 /uid-containing volumes3 resulting in a direct increase inpressure up to the value reuired tomove the /uid through valves or ports



1% Classifcation 1y suction type 0

- Single suction type- Dou1le suction type #or 1ig volume

pump%

7% Classifcation 1y the pump installationmethod 0

- "ertical pump type- Horizontal pump type

OtherClassifcation :



Classifcation by structure and operationmethod :

Type Classificationby structure

Classificationby operation method

Specifics

Positive

displacement

pump

Reciprocating

pump

- Piston pump

- Plunger pump

- Diaphragm pump

This type of pump sucks in fluid through

reciprocating movement of piston or plunger,

and discharges fluid by pressing with reuired

amount of pressure! "t is used when highpressure is reuired even though the amount of

discharge is small!

Rotary pump

- #ear pump

- Screw pump

- $ane pump

This type of pump sucks in fluid through the

rotation movement of rotor, and has theadvantage of little pulsation due to the special

characteristics in operation!



%inetic pump

Centrifugal pump

- Radial flow

- $olute pump

- &i'ed flow

pump

- ('ial flow

pump

This type of pump transfers energy to fluid through

centrifugal force by impeller rotation or through the

changes of si)e and direction of section area of

passage, and

converts velocity energy pressure energy in volute

chamber or diffuser!

Special pump

- *et pump

- #as lift pump

- +esco pump

This type of pump has a efficiency and is not used

e'cept for a special purpose!



Centrifugal Pump :

A centrifugal pump transforms mechanical energy from a rotating impeller into akinetic and potential energy required by the system.

Centriugal PumpHorizontal Centriugal Pump



Reciprocating pumps :

• These are commonly used to move viscous liquids, inject chemicals or additives

into a system.

• Reciprocating pumps are used here a precise amount of liquid is required to be

a delivered, also here the delivery pressure required is higher than can be

achieved ith other types.

(eciprocating Piston )ype Pump!ori"ontal # $ertical Reciprocating pump



Rotary Pump :

Rotary pumps are used to move heavy or very viscous fluids such as

grease, asphalt, heavy fuel oil and sometimes heavy crude oils.

%ear &ump 'cre &ump



American Petroleum Institute (API)

8! 98:3 ;Centriugal Pumps or Petroleum3 Heavy Duty Chemical3 and <as Industry

Services=!

7! 9>?3 ;Positive Displacement Pumps - (eciprocating=!

@! 9>A3 ;Positive Displacement Pumps - Controlled "olume=!

?! 9>93;Positive Displacement Pumps #(otary%

A! 9>>! ;<eneral Purpose <ear Bnits or (efnery Service=!

9! 983 ;,iuid (ing "acuum Pumps=

>! 973 ;Shat Sealing Systems or Centriugal and (otary Pumps=!

American ociety o !echanical "ngineers (A!")

8! >@!8'3 ;Horizontal nd Suction Centriugal Pumps or Chemical Process=!

7! >@!7'3 ;"ertical In-,ine Centriugal Pumps or Chemical Process=

#$ Process Industry Practices (PIP)

8! (SP>@H-E>3 ;Specifcation or Horizontal nd Suction Centriugal Pumps=!

7! (SP>@"-E>3 ;Specifcation or "ertical Centriugal Pumps=!

Industry Codes and tandards : %e

: &"! P'&'





election Criteria or Centriugal* %eciprocating* And %otary Pumps



Defnitions

8! Casing3 +ially Split F Pump case split parallel to pump shat!

7! Casing3 (adially Split F Pump case split transverse to pump shat a+is!

@! DiGuser FPump design in .hich the impeller is surrounded 1y diGuser vanes .here the graduallyenlarging passages change liuid velocity head into pressure head!

?! Dou1le cting F ,iuid is discharged during 1oth or.ard and return stro*es o the

piston!

A! Duple+ F Pump .ith t.o plungers or pistons!

9! Head3 cceleration F Pressure change due to changes in velocity in the piping system!

! Impeller F laded mem1er o rotating assem1ly o a centriugal pump .hich impartsorce to liuid!

E! Net Positive Suction Head #NPSH% F )otal suction head in meters #eet% o liuid a1solute determined at suction nozzle and

reerred to datum elevation3 minus the vapor pressure o liuid in meters #eet%a1solute! )he datum elevation is the shat centerline or horizontal pumps3 thesuction nozzle centerline or vertical in-line pumps3 and the top o the oundationor other vertical pumps!

8:! Net Positive Suction Head vaila1le #NPSH% FNPSH in meters #eet% o li uid determined 1 Purchaser or the um in s stem



88! Net Positive Suction Head (euired #NPSH(% F

NPSH in meters #eet% determined 1y Supplier testing3 usually .ith .ater!NPSH( is measured at the suction /ange and corrected to the datum elevation!NPSH( is the minimum NPSH at rated capacity reuired to prevent a head drop omore than @ #frst stage head in multistage pumps% due to cavitation .ithin pump!

87! (ecirculation FControlling the uantity o /o. through a pump 1y 1ypassing discharge liuid 1ac*to suction!

8?! Simple+ F Pump .ith one plunger or piston!

8A! Single cting F ,iuid is discharged only during or.ard stro*e o the piston!

89! )hrottling F Controlling /o. rate 1y reducing cross-sectional /o. area3 usually 1ypartially closing a valve in the

discharge piping!

8>! )otal DiGerential Head #)DH% F Pressure reuired in meters #eet% o head that thepump must produce! )he

head at the discharge pump /ange minus the head at suction /ange!

8! )riple+ - Pump .ith three plungers or pistons!



+"T POITI," -CTIO+ ."AD (+P.)

2 )he net positive suction head #NPSH% is the a1solute pressure in

excess of the liquid vaporpressure that is availa1le at the pump suction nozzle to move the

liuid into the eye o the impeller!

2 )he diGerence 1et.een NPSHa and NPSHr is less than :!@ 8!:m at the time o chec*ing vendor data sheet J that is3 NPSHa NPSHr 〈 #:!@ 8m%K3

decision on NPSH test shall 1e made according to ngineeringSpecifcation SS-

<-7:8 and PI 98:!

2 Pumps .here diGerence 1et.een NPSH and NPSH( is less than:!9 meter are not accepta1le!

2 )he diameter o the pump suction port is usually 1igger than thedischarge or e+it

diameter in order to minimize the *inetic energy head enteringthe pump3 1ecause

this *inetic energy decreases the ma+imum suction lit andenhances cavitation!



《 NPSH (euired 》

NPSHr 〓 LM H

$here3 H 0 Pump diGerential head

L 0 Cavitation coeGicient o )homa

《 NPSH vaila1le 》

8: NPSHa 〓 #P8 P7% M OP ＋ H

Sp!<r

$here3 P8 0 Pressure at suction liuid level # ㎏㎠ %P7 0 "apor pressure at suction temperature # ㎏㎠ %

OP 0 Pressure drop in suction line # ㎏㎠ %

H 0 Height 1et.een the normal liuid level and pumpcenterline #m%

《 Pump DiGerential Head 》

8:

H 〓 #Po Ps% M Sp!<r $here3 H 0 Head #m% Ps 0 Pump suction pressure # ㎏㎠ % Po 0 Pump discharge pressure # ㎏㎠ % Sp!<r 0 Specifc gravity at pumping temperature



CA,ITATIO+

2 Defnition0 Qnoc*ing due to ormation and su1seuent collapse o vapor 1u11les! #Indication0 Noise%

2 Cavitation is caused 1y the ormation o vapor 1u11les in a high- velocity3 lo.-pressure

region and 1y the su1seuent collapse .hen the 1u11les move to ahigher pressure region!

2 Cavitation can cause e+cessive erosion and vi1ration!

2 $ith moderate cavitation in a centriugal pump3 the pump .ill sound

as though it ispumping gravel or a slurry o sand and gravel!

2 Severe cavitation .ill cause the discharge pressure to all and1ecome highly erratic and

produce 1oth /o. and pressure pulsation!



Ca/itation occures due to :

2 Pump cavitation can result rom insuGicient availa1le NPSH

2 High pump-suction velocities and long piping increase pressure/uctuations in the pump!

2 "acuum systems seem more prone to unpredicta1le cavitationthan pressure systems!

!ethods to a/oid Ca/itaion:

NPSHa #P#suction% - P#saturation% R NPSHr

Increase NPSHa 1y- Increase pressure at suction o pump- Decrease liuid temperature- (educe head losses- (educe NPSHr #Depends on Impeller inlet3

Impeller design3 Pump /o. rate3 impeller speed3



PUMP PIPINGPUMP PIPING

uction Piping or .ori0ontal Pumps :



uction Piping or .ori0ontal Pumps :'

1ine i0e :

Suction piping is one or t.o line sizes larger than the pumpsuction nozzle size!

Flexibility of Suction LinesFlexibility of Suction Lines ((

2 Piping /e+i1ility aGects pump location!

2 Pump suction lines should 1e as short as possi1le3 1ut .ithPump suction lines should 1e as short as possi1le3 1ut .ith

enough /e+i1ility!enough /e+i1ility!

2 I possi1le 3 do not overlap the pump and pipe supportI possi1le 3 do not overlap the pump and pipe support

oundations3 as it causesoundations3 as it causes

structural design pro1lems in com1ining oundations!structural design pro1lems in com1ining oundations!



uction 1ine ittingsuction 1ine ittings 00

2 (educers should 1e as close as possi1le to the pump(educers should 1e as close as possi1le to the pump

suction nozzle so thatsuction nozzle so that

pump suction .ill not starved!pump suction .ill not starved!

2 Bse ccentric reducer .ith 5lat Surace up! #5SB%Bse ccentric reducer .ith 5lat Surace up! #5SB%

2 l.ays use long radius el1o.! l.ays use long radius el1o.!

ir poc*et ormed along upper side o pipe 1yconcentric reducer!



trainers :'trainers :'

2 Strainers .ill 1e located 1et.een pump suction 1loc*Strainers .ill 1e located 1et.een pump suction 1loc*

valve and pump! valve and pump!

)ype o strainer)ype o strainer

8% )emporary strainer8% )emporary strainer

7% Permanent strainer7% Permanent strainerConical strainersConical strainers are longer than theare longer than the1as*et type! )hese are used on1as*et type! )hese are used onsuction lines 7= and larger!suction lines 7= and larger!

5or5or bas2et and conical typesbas2et and conical types aa

remova1le spool piece must 1eremova1le spool piece must 1eprovided do.nstream o suctionprovided do.nstream o suction

1loc* valve1loc* valve

Flat strainersFlat strainers use .ith veryuse .ith very

short suction lines .hereshort suction lines .here

no de1ris is e+pectedno de1ris is e+pected



Bathtub or tee type strainersBathtub or tee type strainers as mostas moste)pensive , it does not require unbolting ande)pensive , it does not require unbolting and

removing spool piece to remove the strainer.removing spool piece to remove the strainer.

3' type strainer to permit servicingo the strainer! lso3 a 1lo.-oGconnection may 1e provided in theend cap to /ush the strainer!



loc* "alve 0-

2 Suction line should have positive shut oG valve3 use gate

valve at the Bp stream

o strainer!

2 Pump valves are operating valves3 thus *eep them as lo. aspossi1le



Consideration o Ca/itation

Cavitation occurs .hen NPSHr is larger than NPSHa! Cavitation reduces theCavitation occurs .hen NPSHr is larger than NPSHa! Cavitation reduces the

perormance o pump3 causes vi1ration or noise and corrodes the materials!perormance o pump3 causes vi1ration or noise and corrodes the materials!

)hereore3 minimize pressure loss on pump piping and3 care shall 1e ta*en to)hereore3 minimize pressure loss on pump piping and3 care shall 1e ta*en to

avoid driting on the nozzle!avoid driting on the nozzle!

'inimum reuired straight pipe on suction nozzle to prevent driting'inimum reuired straight pipe on suction nozzle to prevent driting

Suction typeReuired straight

pipe on suctionRemarks

nd suction D ∼ .D See figure /!

Side

suction

Single suction D and over

See figure

-/ and -!Double suction

/0D and over or insertion of

rectifying plate

Top

suction

Single suction D and over

See figure .!

Double suction /0D and over

D- Suction Nozzle Size



*igure 1. +nd suction piping *igure -1. 'ide suction piping

4r inserts rectiying plate#eccentric suction 0 7Dand over%

5igure 7-7! Side suction piping

Considerationo straight pipeat suction side

is not necessary

or straight-upor straight

do.n.



Single

Singlesuction0 7D and

over

Dou1lesuction

0 8:D andover

*igure . Top suction piping



Consideration o air poc*et on suction line

8% llo. appro+imately 87:8A: o slope on suction line to.ard suctio i suction resource is lo.er than pump suction nozzle!

7% llo. 87: and over o slope on suction line to.ard pump at vacuum to

87: andover



@ % I gate valve is to 1e installed on the line .hose suction resource is locatedlo.er than the pump suction nozzle3 valve stem shall 1e horizontal!

Suction piping on to.er or vessel 0

"orte+ 1rea*er is installed on to.er or vessel nozzleconnected to pump nozzle!



Typical ArrangementDra4ing

1. &/0& '/T234 524+

!ori"ontal $ertical



% Horizontal ell directly into pump suction results inan un1alanced thrust on pump 1earings!

#% Bse spool piece @ pipe diameters long or longradius ell .ith center vertical vane!

#C% 'ay 1e installed .ith or .ithout spool piece 1ut 7pipe diameters spool is preerred! ' le5ibility o pipe or pump alignment ater

piping

ollo4ing diagrams indicate correct and incorrect methods oattaching suction piping$

Sho.s proper method o connecting pumpsuction to a suction header in order to avoid airpoc*ets!

(epresents a common error made suction pipingto a centriugal pump 1y placing piping over anem1an*ment o a reservoir3 or other o1struction!

Discharge Piping or .ori ontal P mps



Discharge Piping or .ori0ontal Pumps 0-

2 ,ine Size 0 Discharge nozzle size is normally smaller than the suction nozzle

size!

2 Discharge 1ine ittings :

2 Normally .e use concentric reducers in the discharge!2 ut i a clearance pro1lem comes up 1et.een the suction and

discharge piping 3then .e use o eccentric reducer

2 pressure gauge is located in the discharge line3 and should 1eupstream o the chec* and gate valves2 Chec2 ,al/e is used in a pump discharge line to prevent

1ac*/o. in to the pump causing the impeller to turn 1ac*.ards and possi1le ruining the1earings!2 6loc2 /al/e Isolate the pump rom piping to provide ma+imumaccess or 1oth in place or maintenance or removal!



Pump Discharge 1ine

16 1 17 48 and /nder

6 48 and 5arger

/se 'ing 7 8all Type heck valve /se !inged flapper heck valve



6 96

5or Higher line size = and a1ove

:6



.andling .ot suctions :

I vessel suction nozzle is higher

hen header going to the t.o pumpt same elevation as suction nozzle!

)hese are used or very hot larger piping



ide uction And ide Discharge Pumpide uction And ide Discharge Pump (or

utility7 8ater 1ines)

)hese are used or large duty diGerential pressure and large 1ore)hese are used or large duty diGerential pressure and large 1orelines3 the pressure diGerence 1et.een the pump suction andlines3 the pressure diGerence 1et.een the pump suction and

discharge 3 and are usually multi-stage pumps3 the liuid goingdischarge 3 and are usually multi-stage pumps3 the liuid going

through several stages o increasing the pressure 1eore reachingthrough several stages o increasing the pressure 1eore reaching

the side discharge nozzle! No o ells should 1e optimize allo.a1lethe side discharge nozzle! No o ells should 1e optimize allo.a1le

nozzle loading!nozzle loading!

)he t.o-diameter pup can 1e eliminated i the el1o. rom the)he t.o-diameter pup can 1e eliminated i the el1o. rom the

suction nozzle is horizontal!suction nozzle is horizontal!

)his pump is horizontal split case !

)he top case can 1e removed or

maintenance on this type o pump !

*eep the top o the pump clear!



,ertical In'1ine Pumps : ( .ydrocarboner/ices)

)he main advantage o this type o pump is to

2 liminate many stress pro1lems

2 ,ocation .hen there is no oundation reuired

2 )his type o pump is mounted directly into the pipe line! 5orsmaller sizes3 the piping system supports the pump and motor!

2 5or heavy or ,arger size in-line pumps oundation .ill 1e reuired



,ertical 6arrel Type or Can pump ( Dry ell Pu!p " #

( CBD $an% "

2 )his type o pump is installed in cooling to.er .ater circulatingservice3 retention ponds and suction is ta*en rom a sump 1elo. grade! 2 In most cases3 there is no suction piping to 1e considered3 1ut the

discharge line must 1e routed to ensure good access or pump maintenance



2 Pumps can 1e used or more than one service3 such as pulling

suction rom onesource and discharging to three diGerent locations or multi-

service suction3 .hich using a pump or more than one service.

0ulti ; 'ervice &umps

!ulti ' er/icePumps :'



%eciprocating Pump Piping :

• )hese lines should run close to the ground so that hold-do.ns can1e used!

2 Suction and discharge piping to positive displacementreciprocating pumps shall

contain hold do.n restraints on piping to minimize the potential

o pulsation loading on pump nozzles should pulsation dampeners 1ecomeinoperative!

2 )o minimize the damaging eGects o .ater hammer and otherimpulse type loading

on pump nozzles3 Bse s.ing type chec* valves in discharge linesin the vertical position a1ove rigidly supported el1o.s so that hammer

loads may1e distri1uted to grade or steel!

(eciprocating Pump Piping



2 )hese pumps measured accurate 9o4 rates that can 1e adTusted

in operation to )he me provide a ide range of varying flo rates.

2 'etering system is to control liuid discharge under a /ariety o bac2 pressure

conditions according to precise volumetric reuirements!

2 Since metering pumps permit little or no 1ac*/o.3 they areespecially useul or in&ectin' liui)s into containers or flo lines against high pressures.

etering Pump :

(eciprocating 'etering PumpInstallation o Dampers and ac* Pressure "alve



Pulsation Damper 0

)he damper contains a diaphragm or 1ello.s isolating themetered liuid rom an air or gas padded cham1er! its use eliminateshydraulic hammer3 esta1lished more avora1le NPSH conditions on theinlet side o the pump3 and allo.s use o smaller pipe size 1y reducingpea* liuid velocity and acceleration!



5or location o pumps in the tan* arm area0

8! <roup together i economical7! 'a*e accessi1le or maintenance and operation@! ,ocate outside o dy*e area

In the routing o the suction lines3 the preerred method .ould1e to drop rom the tan* to the pumps! void a direct run rom the

tan* into the suction nozzle! )his can cause pro1lems in overstress othe pump connection!

Pumps in the Tan2age Area :

Support o Piping In the tan*age area3 the supporting o piping isnormally 1y0

2 Pipe sleepers2 5ield supports



'any pumps have au+iliary piping that is supplied 1y the vendor'any pumps have au+iliary piping that is supplied 1y the vendor

or the engineering contractor !or the engineering contractor !

$hen pump /uid is used a line is attached to the vent connection$hen pump /uid is used a line is attached to the vent connectionon the pump case!on the pump case!

)he circulated /uid must 1e sent 1ac* to the pump stream and)he circulated /uid must 1e sent 1ac* to the pump stream and

return to the seal to pump internal clearances!return to the seal to pump internal clearances!

In viscous or high temperature hydrocar1on liuids the seal /uidIn viscous or high temperature hydrocar1on liuids the seal /uidmedium circulates rom an e+ternal source through connectionsmedium circulates rom an e+ternal source through connectionson the pump seal ! )his medium may 1e clean gas or oil !on the pump seal ! )his medium may 1e clean gas or oil !

In fg the cooling .ater in and out o this particular pump is romIn fg the cooling .ater in and out o this particular pump is roma1ove grade 3 ho.ever many cooling .ater systems are 1elo.a1ove grade 3 ho.ever many cooling .ater systems are 1elo.grade so the piping layout designer must fnd suita1le location orgrade so the piping layout designer must fnd suita1le location orthis connection!this connection!

Au5iliary Pump Piping Arrangement 0



*uxiliary Pu!p Pipin'



Pipe ,ent And Drain ystem :

• Are provide to escape air or vapour trapped in the casing.



eallushing



,"+T A+D D%AI+ 3T"! O% P-!P:



Install on the place .here access is easy during the operation!Install on the place .here access is easy during the operation!

SuGicient space shall 1e provided at and around pumps to ena1lemaintenance and removal o all internal and e+ternal parts!

)he minimum .al*.ay clearance around pumps .ill 1e 7U-9=!

)he pump should 1e located as close as possi1le to the source osuction! )he main reason or this is to minimize pressure drop!)his *eeps line sizes and euipment elevations to a minimum!

'inimum clearance o @U-:V is reuired 1et.een pumps3 adTacenteuipment3 oundation or other o1structions!

Pumps should 1e located in1oard o overhead pipe rac* as muchPumps should 1e located in1oard o overhead pipe rac* as muchas possi1le in order to save the reuired plant area!as possi1le in order to save the reuired plant area!

Pump 1ocation 7 Arrangement :



5or maintenance o the pumps located under the pipe rac*s or steel5or maintenance o the pumps located under the pipe rac*s or steel

structures3 maintenance 1eam or hoo* shall 1e planned up.ard o thestructures3 maintenance 1eam or hoo* shall 1e planned up.ard o thepump unlessWpump unlessW

#8% ccess .ay o maintenance vehicle is provided under the pipe rac*!#8% ccess .ay o maintenance vehicle is provided under the pipe rac*!

#7% ccess o automo1ile crane is possi1le!#7% ccess o automo1ile crane is possi1le!

'aintenance space 8::: mm reuired around pump and .ithout'aintenance space 8::: mm reuired around pump and .ithoutmaTor disassem1ly!maTor disassem1ly!

Pumps shall generally 1e lined up in parallel .ith the pipe rac* toPumps shall generally 1e lined up in parallel .ith the pipe rac* tomaintain a uniormity o location!maintain a uniormity o location!

Pump discharge points to 1e f+ed in a line 1elo. pipe rac* and to 1ePump discharge points to 1e f+ed in a line 1elo. pipe rac* and to 1ea1out A:: mm a.ay rom pipe rac* 1ay!a1out A:: mm a.ay rom pipe rac* 1ay!

In hydrocar1on or other /amma1le /uid service3 threadedconstruction shall not 1e used or piping connected to pump3 including1ranch piping .ithin 9 eet o pump suction or discharge /anges orthrough suction or discharge 1loc* valves3 .hich ever is greater!Soc*et .eld unions are accepta1le!

Pump pacing 7 .eight o PumpPump pacing 7 .eight o Pump



Pump pacing 7 .eight o PumpPump pacing 7 .eight o Pump

oundationoundation Pump Spacing 0-Pump Spacing 0-

Suction pipe size #%Suction pipe size #%

Pump spacing #mm%Pump spacing #mm%

Height o pump oundation 0-Height o pump oundation 0-

Height o pump oundation shall 1e 8::@::mm romHeight o pump oundation shall 1e 8::@::mm rom

ground level or /oor level i it is on the paving or inside oground level or /oor level i it is on the paving or inside o

1uilding! ut it shall 1e @::A::mm or the area .here /ood is1uilding! ut it shall 1e @::A::mm or the area .here /ood is

e+pected!e+pected!

/p to

1:<< <<< :<< <<< 9<<<

- : = - 1< 1 - 19 1= - 1>

4thers4thers 008% y-pass line .hich is installed on pump discharge line shall 1e routed8% y-pass line .hich is installed on pump discharge line shall 1e routed.ithout.ithout

poc*et!poc*et!

7% void installation o chemical or .ater supply line near the suction nozzle7% void installation o chemical or .ater supply line near the suction nozzleo reservoir so that air shall not 1e suc*ed in!o reservoir so that air shall not 1e suc*ed in!



Support regarding o eccentricity o pump 0Support regarding o eccentricity o pump 0

#8% Support shall 1e installed so that pipe and valve may not#8% Support shall 1e installed so that pipe and valve may notload on the pump nozzle!load on the pump nozzle!

#X% Support nozzle surroundings! #ut3 do not e+ceed 8m!%

#7% Suction line and discharge line shall 1e supported respectively!

urroundings upport :'



#@% I support is installed right close to suction or discharge nozzle3 it#@% I support is installed right close to suction or discharge nozzle3 it

shall 1e minutely adTusta1le type so that centering can 1e convenient!shall 1e minutely adTusta1le type so that centering can 1e convenient!

#?% support installed around suction or discharge nozzle shall 1e sucha type that piping

can 1e removed and pump can 1e dismantled easily!

Bn-necessary support .ith respect to the load on pumpnozzle 0-

lthough support .ould not seem to 1e necessary .ith respect tothe load on pump nozzle3 indicate it on the dra.ing considering thetemporary support o piping during the time o pump maintenance!



Thank you

Documents

Pump & Pump Piping Presentation