5CPQ plunger pump
5CPQ6281CSS
- 20Flow, l/min
- 138Pressure, bar
- 1725Speed, rpm
- 5.6Power, kW
60 Hz Rated at a motor speed for 60 Hz mains (North America, parts of South America and Asia).

Specification
- Flow
- 20 l/min
- Pressure
- 138 bar
- Speed
- 1725 rpm
- Absorbed power
- 5.6 kW
- Plunger
- 20 mm
- Shaft
- Solid, Ø20 mm
- Weight
- 8 kg
Kits
Valves4
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 33972 | Valve kit, NBR (STD) | 1 | |
| 34362 | Valve kit, FPM (.0110) | 1 | |
| 34363 | Valve kit, EPDM (.0220) | 1 | |
| 77332 | Valve kit, FFKM (.0770) | 1 |
Seal kits5
Exploded view
Parts list
Positions are the balloon numbers on Cat Pumps' exploded view.
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 5 | 119049 | Screw, HHC, Sems (M8 x 16) | 8 |
| 5 | 46910 | Cover, Bearing | 1 |
| 10 | 43222 | Seal, Oil, Crankshaft | 1 |
| 15 | 127472 | Bearing, Ball | 2 |
| 20 | 48742 | Rod Assembly, Connecting | 3 |
| 25 | 49872 | Crankshaft, Single-End (M14) | 1 |
| 25 | 49776 | Cover, Blind Bearing | 1 |
| 32 | 46798 | Cap, Oil Filler | 1 |
| 33 | 14179 | O-Ring, Oil Filler Cap | 1 |
| 37 | 92241 | Gauge, Oil, Bubble with Gasket | 1 |
| 38 | 44428 | Gasket, Flat, Oil Gauge | 1 |
| 40 | 92538 | Screw, HHC, Sems (M6 x 16) | 4 |
| 48 | 25625 | Plug, Drain (1/4" x 19 BSP) | 1 |
| 49 | 23170 | O-Ring, Drain Plug | 1 |
| 50 | 46940 | Cover, Rear | 1 |
| 51 | 14044 | O-Ring, Cover, Rear | 1 |
| 53 | 48617 | Crankcase | 1 |
| 64 | 46746 | Pin, Crosshead | 3 |
| 65 | 48458 | Rod, Plunger | 3 |
| 70 | 46838 | Seal, Oil, Crankcase | 3 |
| 71 | 48208 | Washer, Oil Seal | 3 |
| 75 | 43328 | Slinger, Barrier | 3 |
| 88 | 45697 | Washer, Keyhole (M18 x 10) | 3 |
| 90 | 46841 | Plunger (M20 x 50) | 3 |
| 98 | 46730 | Washer, Seal | 3 |
| 99 | 48201 | Retainer, Plunger (M6 x 30) | 3 |
| 100 | 46749 | Retainer, Seal | 3 |
| 106 | 44127 | Seal, Low-Pressure with SS-Spring | 3 |
| 110 | 48552 | Manifold, Inlet | 1 |
| 117 | 119034 | Screw, HSH (M8 x 35) | 4 |
| 125 | 833824 | Seal, High-Pressure | 3 |
| 143 | 49382 | O-Ring, Inlet Valve Adapter, Rear | 3 |
| 150 | 48212 | Adapter, Inlet | 3 |
| 154 | 43781 | O-Ring, Inlet Valve Adapter, Front | 3 |
| 155 | 43781 | O-Ring, Discharge Adapter, Rear | 3 |
| 157 | 48211 | Adapter, Discharge | 3 |
| 159 | 43781 | O-Ring, Discharge Adapter, Front | 3 |
| 163 | 43781 | O-Ring, Seat | 3 |
| 164 | 48216 | Seat | 6 |
| 165 | 43793 | O-Ring, Seat | 6 |
| 166 | 44038 | Valve | 6 |
| 167 | 44039 | Spring | 6 |
| 168 | 44564 | Retainer, Spring | 6 |
| 185 | 48554 | Manifold, Discharge | 1 |
| 186 | 19085 | Lockwasher, Split (M12) | 6 |
| 188 | 120774 | Screw, HSH (M12 x 40) | 2 |
| 189 | 89575 | Screw, HSH (M12 x 60) | 4 |
Motor
Rated at 1725 rpm, the speed of a 4-pole motor on a 60 Hz supply. The motors below are listed with their 50 Hz figures and are at least 5.6 kW. Order the one you pick wound for 60 Hz and your supply voltage.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RNE 132Ma4 | 7.5 | 1465 | IEC 132M | IE3 | 15.3 | |
| RN 132Ma4 | 7.5 | 1440 | IEC 132M | IE1 | 15.3 | |
| RN 112c4 uprated | 6.3 | 1420 | IEC 112 | IE1 | 12.5 |
The contactor and overload relay for each motor are on the motor's page.
Flange
The flange bolts the pump to the face of the motor. It depends on the motor's IEC frame.
- IEC 112, 28 mm shaft (RN 112c4) No Cat Pumps flange listed for this motor.
- IEC 132, 38 mm shaft (RNE 132Ma4, RN 132Ma4) No Cat Pumps flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 112, 28 mm motor shaft No Cat Pumps coupling listed: you need one for a 28 mm motor shaft to 20 mm pump shaft.
- IEC 132, 38 mm motor shaft No Cat Pumps coupling listed: you need one for a 38 mm motor shaft to 20 mm pump shaft.
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