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High Pressure Plunger Pump · Frame size 3CP 3CP1231

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

The 1420 min⁻¹ permits multiple drive options, including direct drive with a bell housing and flexible coupling, clutch or belt drive.

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate 7.4 l/min
Operating pressure 140 bar
Speed 1,450 min⁻¹
Inlet port 1/2" NPT
Discharge port 3/8" NPT
Shaft diameter 16.5 mm
Material Stainless Steel

Downloads

CAD files

Spare parts

Click an item in the drawing or in the parts list to add it to your request list. We turn it into a quotation – no order is placed.

8 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Exploded view

Exploded view 3CP1231

Parts list

Item Part no. Description Qty Add to request list
2 30047 Key (M5 x 5 x 24)STL 1
5 92538 Screw, HHC, Sems (M6 x 16) (Model 2530E)S 8
8 46901 Cover, BearingAL 2
10 14028 O-Ring, Bearing Cover - 70D 2-2-1NBR 2
11 43222 Seal, Oil, Crankshaft 2/1/2NBR 2
15 14480 Bearing, Ball 2-2-2STL 2
20 48730 Rod, Connecting, AssemblyTNM 3
25 46927 Crankshaft, Dual End - 3CP1221 (M12.7)FCM 1
31 127409 Cap, Vented with O-Ring (Rain Cap) 1
32 46798 Cap, Oil Filler, Domed 1
33 14179 O-Ring, Oil Filler Cap - 70DNBR 1
37 92241 Gauge, Oil, Bubble with Gasket - 80D 1 - 2 1
38 44428 Gasket, Flat, Oil Gauge - 80DNBR 1
40 92538 Screw, HHC, Sems (M6 x 16) (Model 2530E)S 4
48 25625 Plug, Drain (1/4" x 19 BSP[M])STCP 1
49 23170 O-Ring, Drain Plug - 70DNBR 1
50 46939 Cover, RearAL 1
51 14041 O-Ring, Bearing Cover - 70DNBR 1
53 48644 CrankcaseAL 1
64 46615 Pin, CrossheadCM 3
65 48459 Rod, PlungerBBNP 3
70 46839 Seal, Oil, CrankcaseNBR 3
75 43900 Slinger, BarrierS 3
88 45697 Washer, Keyhole (M18 x 10)S 3
90 46976 Plunger (M18x43)CC 3
98 46730 Washer, Seal - 90DNBR 3
99 48201 Retainer, Plunger with Stud (M6)SS 3
100 46541 Retainer, SealPVDF 3
106 44053 Seal, Low-Pressure with SS-SpringNBR 3
110 48556 Manifold, InletSS 1
117 119034 Screw, HSH (M8x35)S 4
125 44652 Seal, High-Pressure with SS - SupportSNG 3
139 45156 Plug, Inlet [1/2" NPT(M)]SS 1
143 17547 O-Ring, Seat - 85DNBR 3
150 44060 Adapter, Inlet ValveSS 3
154 43893 O-Ring, Inlet Valve Adapter, Front - 80DNBR 3
155 26089 O-Ring, Seat - 80DNBR 3
157 44059 Adapter, Discharge ValveSS 3
159 26089 O-Ring, Seat - 80DNBR 3
164 44058 SeatSS 6
165 44001 O-Ring, Seat - 80DNBR 6
166 44057 ValveSS 6
167 44056 Spring, ValveSS 6
168 44055 Retainer, SpringSS 6
185 48558 Manifold, DischargeSS 1
186 15847 Lockwasher (M10)S 6
188 87950 Screw, HSH (M10 x 35)S 2
189 87952 Screw, HSH (M10 x 55)S 4
250 118672 Protector, Shaft (Model 5CP5120)STCP 1
260 126607 Assy, Angle RailSTZP 1
283 34334 Kit, Oil Drain (3/8" x 24") (Not Shown) 1 1
299 816719 Head, Complete with NBR Seals and O-RingsSS 1
500 8075 Gearbox (See Individual Data Sheet) (Model 3CP1211G) 1
– 11377 O-Ring, Adapter, Inner - 80DFPM 3
– 11685 O-Ring, Seat - 85DFPM 3
– 44925 Seal, HPS w/SSFPM 3
– 44926 Seal, LPS w/SS-SpgFPM 3
– 44927 O-Ring, Adapter, Valve, FrontFPM 3
– 44928 O-Ring, Seat - 80DFPM 6
– 46647 O-Ring, Adapter, Valve, Rear - 80DEPDM 3
– 46648 O-Ring, Seat - 70DEPDM 3
– 46649 O-Ring, Adapter, Valve, Front - 80DEPDM 3
– 46650 O-Ring, Seat - 80DEPDM 6
– 46651 Seal, LPS w/SS-SpgEPDM 3
– 46652 Seal, High-Pressure, High-Temperature, 2-Piece with S-Support All Models except GZHT 3
– 46991 Crankshaft, Dual End - 3CP1241 (M11)FCM 1
– 46994 Crankshaft, Dual End - 3CP1231 (M7.3)FCM 1
– 48259 Cover, Blind (3CP1241G)AL 1
– 48394 Washer, Seal - 90DFPM 3
– 48432 Washer, SealEPDM 3
– 48484 Crankshaft, Single End - 3CP1241G (M11)FCM 1
– 76052 Seal, HPS w/SST4 3
– 703244 O-Ring, Adapter, Valve, Rear - 75DIPFE 3
– 703307 O-Ring, Adapter, Valve, Front - 80DIPFE 3
– 703308 O-Ring, Adapter, Valve, Rear - 85DIPFE 3
– 6132 Oil, Crankcase, Bottle 1l 1

in the request list covered by a requested kit

Seal and valve kits

A kit bundles the wearing parts of one assembly. Selecting it highlights the items it covers in the drawing and the parts list – once requested, they stay marked.

Seal kits

  • Seal kit

    33985

    NBR (STD)Medium Nitrile (Buna-N)

    contains 7 items · one kit per pump

    Parts list
    • 98 46730 Washer, Seal 3×
    • 106 44053 Seal, Low-Pressure with SS-Spring 3×
    • 125 44652 Seal, High-Pressure with SS-Support 3×
    • 143 17547 O-Ring, Adapter, Inlet Valve, Rear 3×
    • 154 43893 O-Ring, Adapter, Inlet Valve, Front 3×
    • 155 26089 O-Ring, Adapter, Discharge Valve, Rear 3×
    • 159 26089 O-Ring, Adapter, Discharge Valve, Front 3×

  • Seal kit

    33309

    FPM (0.0110)Fluorocarbon

    contains 7 items · one kit per pump

    Parts list
    • 98 48394 Washer, Seal 3×
    • 106 44926 Seal, Low-Pressure with SS-Spring 3×
    • 125 44925 Seal, High-Pressure with SS-Support 3×
    • 143 11685 O-Ring, Adapter, Inlet Valve, Rear 3×
    • 154 44927 O-Ring, Adapter, Inlet Valve, Front 3×
    • 155 11377 O-Ring, Adapter, Discharge Valve, Rear 3×
    • 159 11377 O-Ring, Adapter, Discharge Valve, Front 3×

  • Seal kit

    76136

    HT (0.3000)Hi-Temp (EPDM Alternative)

    contains 7 items · one kit per pump

    Parts list
    • 98 46730 Washer, Seal 3×
    • 106 44053 Seal, Low-Pressure with SS-Spring 3×
    • 125 46652 Seal, High-Pressure with SS-Support 3×
    • 143 17547 O-Ring, Adapter, Inlet Valve, Rear 3×
    • 154 43893 O-Ring, Adapter, Inlet Valve, Front 3×
    • 155 26089 O-Ring, Adapter, Discharge Valve, Rear 3×
    • 159 26089 O-Ring, Adapter, Discharge Valve, Front 3×

  • Seal kit

    76985

    IPFE (0.0770)I-Perfluoroelastomer

    contains 8 items · one kit per pump

    Parts list
    • 97 76729 Washer, Flat 3×
    • 98 76730 Washer, Seal 3×
    • 106 76243 Seal, Low-Pressure with SS-Spring 3×
    • 125 46652 Seal, High-Pressure with SS-Support 3×
    • 143 703308 O-Ring, Adapter, Inlet Valve, Rear 3×
    • 154 703307 O-Ring, Adapter, Inlet Valve, Front 3×
    • 155 703244 O-Ring, Adapter, Discharge Valve, Rear 3×
    • 159 703244 O-Ring, Adapter, Discharge Valve, Front 3×

  • Seal kit

    76167

    STHT (0.3400)Special PTFE High Temp

    contains 7 items · one kit per pump

    Parts list
    • 98 46730 Washer, Seal 3×
    • 106 76243 Seal, Low-Pressure with SS-Spring 3×
    • 125 46652 Seal, High-Pressure with SS-Support 3×
    • 143 17547 O-Ring, Adapter, Inlet Valve, Rear 3×
    • 154 43893 O-Ring, Adapter, Inlet Valve, Front 3×
    • 155 26089 O-Ring, Adapter, Discharge Valve, Rear 3×
    • 159 26089 O-Ring, Adapter, Discharge Valve, Front 3×

Valve kits

  • Valve kit

    30982

    NBR (STD)Medium Nitrile (Buna-N)

    contains 10 items · one kit per pump

    Parts list
    • 143 17547 O-Ring, Einlassventil Adapter, hinten 3×
    • 154 43893 O-Ring, Einlassventil Adapter, vorne 3×
    • 155 26089 O-Ring, Auslassventil Adapter, hinten 3×
    • 159 26089 O-Ring, Adapter, Discharge Valve, Front 3×
    • 164 44058 Ventilsitz 6×
    • 165 44001 O-Ring, Ventilsitz 6×
    • 166 44057 Ventil 6×
    • 166 543669 Valve 6×
    • 167 44056 Feder, Ventil 6×
    • 168 44055 Federhalter, Ventil 6×

  • Valve kit

    31216

    FPM (0.0110)Fluorocarbon

    contains 10 items · one kit per pump

    Parts list
    • 143 11685 O-Ring, Einlassventil Adapter, hinten 3×
    • 154 44927 O-Ring, Einlassventil Adapter, vorne 3×
    • 155 11377 O-Ring, Auslassventil Adapter, hinten 3×
    • 159 11377 O-Ring, Adapter, Discharge Valve, Front 3×
    • 164 44058 Ventilsitz 6×
    • 165 44928 O-Ring, Ventilsitz 6×
    • 166 44057 Ventil 6×
    • 166 543669 Valve 6×
    • 167 44056 Feder, Ventil 6×
    • 168 44055 Federhalter, Ventil 6×

  • Valve kit

    31217

    EPDM (0.0220)Ethylene Propylene Diene Monomer

    contains 10 items · one kit per pump

    Parts list
    • 143 46648 O-Ring, Einlassventil Adapter, hinten 3×
    • 154 46649 O-Ring, Einlassventil Adapter, vorne 3×
    • 155 46647 O-Ring, Auslassventil Adapter, hinten 3×
    • 159 46647 O-Ring, Adapter, Discharge Valve, Front 3×
    • 164 44058 Ventilsitz 6×
    • 165 46650 O-Ring, Ventilsitz 6×
    • 166 44057 Ventil 6×
    • 166 543669 Valve 6×
    • 167 44056 Feder, Ventil 6×
    • 168 44055 Federhalter, Ventil 6×

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High Pressure Plunger Pump 3CP1231
3CP1231 · High Pressure Plunger Pump
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