This product is no longer offered by this manufacturer.

However, spare parts and service materials may still be available. Contact CSI for help with repairs, maintenance, or replacement.

Tri-Clover PR/PRE/PRED Series Pumps

Tri-Clover's PR Series rotary lobe pumps were designed for the dairy industry. The original PR series featured rubber rotors only, while later PRE (single flush) and PRED (double flush) models included a stainless steel rotor option. Tri-Clover (now Alfa Laval) no longer manufactures the PR, PRE, or PRED pumps, but seal kits, rotors, shafts, and some front covers are still available. Central States Industrial (CSI) still supports the PR series by supplying these genuine OEM spare parts for repair or maintenance.

Models

  • PR
  • PRE
  • PRED
While these complete pumps are no longer manufactured, parts lists and other documentation appear below.

Spare Parts

PRE/PRED Series Models 3, 10, 25, 60, 125, 300 Service Kits
TypePRE3PRE10PRE25PRE60PRE125PRE300
Buna (PRE/PRED-1)400252400253400254400255400255400257
EPDM (PRE/PRED-1)96139904339613990434400306961399043696139904369613990437
SFY (PRE/PRED-1)400956

401490

4018464019964019969613990438
Buna (PRE/PRED-1A)N/A400265400266400267400267400269
EPDM (PRE/PRED-1A)

N/A

96139904399613990440961399044296139904429613990444
SFY (PRE/PRED-1A)N/A4006409613990441961399044396139904439613990445
Buna (PRE/PRED-1)400226400227400228400229400229400231
EPDM (PRE/PRED-1)96346000009613990446400421961399044796139904479613990448
SFY(PRE/PRED-1)401813401993401994401995401995401882
Buna (PRE/PRED-1A)N/A400233400234400235400235400237
EPDM (PRE/PRED-1A)N/A96139904499613990450961399045196139904519613990452
SFY (PRE/PRED-1A)N/A4022984016634000064000069613990453


PR/PRED Pump Parts List

PR Series Models 3, 10,25, 60, 125, 300 Spare Parts
PartPR3PR10PR25PR60PR125PR300
Casing, Bevel Ports401697401681401464402493402973401525
Casing, Tri-Clamp Ports401695401682401690402492403000401526
Casing, Bevel Ports, EnlargedN/AN/A401692402716403357N/A
Casing, Tri-Clamp Ports, EnlargedN/AN/A400250402715403348N/A
Pump Shaft400564401266401564402564403068403568
Impeller Carbon, S.S. RotorsN/A401224401628402484402484403581

Front Cover

400506401269401568402568402568403572
Drive Shaft400571401273401572402572403076403576
Bearing, Inboard400576401277401576402576403080403580
Bearing, Outboard400576401277401576402576402574403582
Frame400580401280401580402580402580403584
LocknutN/A

N/A

N/AN/AN/A403586
Alignment Locating Ring400583401236401582402598403087403589
Alignment Locating Ring O-Ring400587401233401609402587402587403591
Bearing Cover Outboard400586401233401586402586402586403590
Bearing Cover O-Ring400587401233401587402587402587403591
Coupling Key400588401239401588402588402588403592
Alignment Locating Ring Seal400592401240401592402592403096403596
Bearing Cover Seal400592401240401596402592402592403600
Plug181254185188185188185188185188185188

Vented Plug

181255185189185189185189185189185189
Cleanout Hole Cover400600401600401600402600402600402600
Cleanout Hole Gasket400604401604401604402604402604402604
Cleanout Hole Screw1896431896431894643189643189643189643
LockwasherN/AN/AN/AN/AN/A403610
Gear Cover Gasket400608401248401608402608402608403612

Wear Ring

400616401250401616402616402616403620
Seal Ring400620401241401621402621402621401624
Shaft O-Ring, Buna400623401189401699402647402647403622
Shaft O-Ring, EPDM400625400125400125402628402628400180
Shaft O-Ring, SFY401508400895400895400538400538401619
Shaft O-Ring, Buna400615401245401842402472402472403631
Shaft O-Ring, EPDM400628400126400055402631402631400181
Shaft O-Ring, SFY401509400896400554400543400543401620
Casing Stud400632401253401632402632402632403636
Casing Nut400634401636401636402636402636403639
Casing Gasket, Buna400642401331401725402714402714403645
Casing Gasket, EPDM400639400127400056402642402642400182
Casing Gasket, SFY401510400897400555400547400547401622
Alignment Pin400644401644401644402644402644402644
Timing Gear400649401264401673402649402649403653
Timing Gear Key400656401292401656402656402656403660
Gear Retainer Ring400652401310401652402652402652N/A
Bearing Retainer Ring400653401300401658402658403162403662
Grease Fitting401660401660401660401660401660401660
Gear Cover400664401313401664402664402664403668
Gear Cover Screw180314180025180009180051180051180051
Shaft Retainer Ring400668401315401668402668402668403672
Gear Cover Seal400672401317401672402672402672403676


PR/PRED Pump Parts List

PR Series Pump Rotors for Models 3, 10, 25, 60, 125, 300
RotorPR3PR10PR25PR60PR125PR300
6 Lobe Cold Buna Drive400171N/AN/AN/AN/AN/A
6 Lobe Cold EPDM Drive402254N/AN/AN/AN/AN/A
6 Lobe Cold SFY Drive401860N/AN/AN/AN/AN/A
6 Lobe Hot Buna Drive400123N/AN/AN/AN/AN/A
6 Lobe Hot EPDM Drive400282N/AN/AN/AN/AN/A
6 Lobe Hot SFY Drive401639N/AN/AN/AN/AN/A
6 Lobe Cold Buna Pump400172N/AN/AN/AN/AN/A
6 Lobe Cold EPDM Pump402255N/AN/AN/AN/AN/A
6 Lobe Cold SFY Pump401862N/AN/AN/AN/AN/A
6 Lobe Hot Buna Pump400124N/AN/AN/AN/AN/A
6 Lobe Hot EPDM Pump400284N/AN/AN/AN/AN/A
6 Lobe Hot SFY Pump401640N/AN/AN/AN/AN/A
4 Lobe Cold BunaN/A401212401557402557403065403545
4 Lobe Cold EPDMN/A400192400338400369400336N/A
4 Lobe Cold SFYN/A401843401271401866401838401821
4 Lobe Cold T ResinN/A401324401684402655403051403549
4 Lobe Hot BunaN/A401216401555402558403066403546
4 Lobe Hot EPDMN/A400794400052400368400193402197
4 Lobe Hot SFYN/A400894400551401102401080401836
4 Lobe Hot T ResinN/A401171401685402650400372403579
4 Lobe Hot Hot BunaN/A402219401504401373400335402267
4 Lobe Hot Hot SFYN/A402078401611402287401717N/A
4 Lobe MetalN/A401196401624402671402998403476
2 Lobe Cold Buna DriveN/A401190401614402525403219403537
2 Lobe Cold SFY DriveN/A401877400388401818400189400643
2 Lobe Hot Buna DriveN/A401191401506402529403221400278
2 Lobe Hot SFY DriveN/A401988401815401990400722400503
2 Lobe Cold Buna PumpN/A401194401615402526403186403538
2 Lobe Cold SFY PumpN/A401878400390401819401840400650
2 Lobe Hot Buna PumpN/A401195401507402530403223400279
2 Lobe Hot SFY PumpN/A401987401814401989400725400509
2 Lobe Metal DriveN/A401228401461402485403034403511
2 Lobe Metal PumpN/A401237401474402486403035403515


PR/PRED Pump Parts List

PRE/PRED Series Models 3, 10, 25, 60, 125, 300 Spare Parts
PartPR3PR10PR25PR60PR125PR300
Casing, Bevel Ports401697401681401464402493402973401525
Casing, Tri-Clamp Ports401695401682401690402492403000401526
Casing, Bevel Ports EnlargedN/AN/A401692402716403357N/A
Casing, Tri-Clamp Ports EnlargedN/AN/A400250402715403348N/A
Pump Shaft400709401405401941402701403394403729
Impeller Carbon, S.S. RotorsN/A401224401628402484402484403581
Front Cover400506401269401568402568402568403572
Drive Shaft400714401407401942402702403400403730
Bearing, Inboard400576401277401576402576403080403580
Bearing, Outboard400576401277401576402576402576403582
Frame400580401280401580402580402580403584
LocknutN/A

N/A

N/AN/AN/A403586
Alignment Locating Ring400726401410401944402700403409403732
Alignment Locating Ring, O-Ring400587401233401609402587402587403591

Bearing Cover, Outboard

400586401233401586402586402586403590
Bearing, Cover O-Ring400587401233401587402587402587403591
Coupling Key400588401239401588402588402588403592
Alignment Locating Ring Seal400592401240401592402592403096403596
Bearing Cover Seal400592401240401596402592402592403600
Plug181254185188185188185188185188185188
Vented Plug181255185189185189185189185189185189
Cleanout Hole Cover400600401600401600402600402600402600
Cleanout Hole Gasket400604401604401604402604402604402604
Cleanout Hole Screw189643189643189643189643189643189643
LockwasherN/AN/AN/AN/AN/A403610
Gear Cover Gasket400608401248401608402608402608402608

Wear Ring

400730701412401950402703402703

403735

Seal Ring400731401413401949402707402707401765
Shaft O-Ring, Buna400623401189

401699

402647402647403622
Shaft O-Ring, EPDM400625400125400125402628402628400180
Shaft O-Ring, SFY401508400895400895400538400538401619
Shaft O-Ring, Buna400615401245401842402472402472403631
Shaft O-Ring, EPDM400628400126400055402631402631400181
Shaft O-Ring, SFY401509400896400554400543400543401620
O-Ring, Buna755492755378755360402587402587403591
Casing Stud400736401422401955402705

402705

403739
Casing Nut400634401636401636402636402636403639
Casing Gasket, Buna400642401331401725402714402714403645

Casing Gasket, EPDM

400639400127400056402642402642400182
Casing Gasket, SFY401510400897400555400547400547401622
Alignment Pin400644401644401644402644402644402644
Timing Gear400649401264401673402649402649403653
Timing Gear Key400656401292401656402656402656403660
Gear Retaining Ring400652401310401652402652402652N/A
Bearing Retainer Ring400653401300401658402658403162403662
Grease Fitting401660401660401660401660401660401660
Gear Cover400664401313401664402664402664403668
Gear Cover Screw180314180025180009180051180051180051
Shaft Retainer Ring400668401315401668402668402668403672
Gear Cover Seal400672401317401672402672402672403676


PR/PRED Pump Parts List

PR Series Models 3, 10, 25, 60, 125, 300 Service Kits
TypePR3PR10PR25PR60PR125PR300
Buna (PR-1)400199400200400201400202400202400204
EPDM (PR-1)963405241996139904264006624021394021399613990429
SFY (PR-1)401812401779401669402063402063400707
Buna (PR-1A)N/A400206400207400208400208400210
EPDM (PR-1A)N/A9613990430400404961399043196139904319613990432
SFY (PR-1A)N/A401780400344402361402361400351


PR/PRED Pump Parts List

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