5 Frame plunger pump
310S
- 15.1Flow, l/min
- 152Pressure, bar
- 950Speed, rpm
- 4.49Power, kW
50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Specification
- Flow
- 15.1 l/min
- Pressure
- 152 bar
- Speed
- 950 rpm
- Absorbed power
- 4.49 kW
- Plunger
- 20 mm
- Shaft
- Solid, Ø20 mm
- Weight
- 9 kg
Kits
Seal kits4
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 30623 | Seal kit, NBR (STD) | 1 | |
| 31163 | Seal kit, EPDM (.0220) | 1 | |
| 33623 | Seal kit, HT (.3000) | 1 | |
| 34155 | Seal kit, FPM (.0110) | 1 |
Valves3
Exploded view
Parts list
Positions are the balloon numbers on Cat Pumps' exploded view.
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 5 | 125824 | Screw, HHC, Sems (M6 x 16) | 8 |
| 8 | 43344 | Cover, Bearing | |
| 10 | 43343 | O-Ring, Bearing Cover | 2 |
| 11 | 43222 | Seal, Oil, Crankshaft | |
| 15 | 14480 | Bearing, Ball | 2 |
| 20 | 45883 | Rod, Connecting Assembly | 3 |
| 25 | 43342 | Crankshaft, Dual-End (M18) | 1 |
| 32 | 43211 | Cap, Oil Filler | 1 |
| 33 | 14177 | O-Ring, Filler Cap | 1 |
| 37 | 92241 | Gauge, Oil, Bubble with Gasket | 1 |
| 38 | 44428 | Gasket, Flat, Oil Gauge | 1 |
| 40 | 126541 | Screw, HHC, Sems (M6 x 20) | 4 |
| 48 | 25625 | Plug, Drain (1/4" x 19 BSP) | 1 |
| 49 | 23170 | O-Ring, Drain Plug | 1 |
| 50 | 48772 | Cover, Rear | 1 |
| 51 | 48773 | O-Ring, Rear Cover | 1 |
| 53 | 48769 | Crankcase | 1 |
| 56 | 43355 | Pan, Oil | 1 |
| 64 | 43351 | Pin, Crosshead | 3 |
| 65 | 43365 | Rod, Plunger | 3 |
| 70 | 43228 | Seal, Oil, Crankcase | 3 |
| 75 | 43328 | Slinger, Barrier | 3 |
| 88 | 45697 | Washer, Keyhole (M18 x 10) | 3 |
| 90 | 43367 | Plunger (M20 x 72) | 3 |
| 96 | 43235 | Backup Ring, Plunger Retainer | 3 |
| 97 | 17399 | O-Ring, Plunger Retainer | 3 |
| 98 | 45891 | Gasket | 3 |
| 99 | 104360 | Retainer, Plunger with Stud | 3 |
| 100 | 45688 | Retainer, Seal, 2-Piece | 3 |
| 101 | 43302 | Wick, Long Tab | 3 |
| 106 | 43305 | Seal, Low-Pressure with S-Spring | 3 |
| 120 | 45679 | Case, Seal | 3 |
| 121 | 14200 | O-Ring, Seal Case | 3 |
| 125 | 43307 | Seal, High-Pressure with S-Support | 3 |
| 139 | 22179 | Plug, Inlet (1/2" NPT[M]) | 1 |
| 162 | 48361 | Backup Ring, Seat | 6 |
| 163 | 43358 | O-Ring, Seat | 6 |
| 164 | 43725 | Seat | 6 |
| 166 | 43723 | Valve | 6 |
| 167 | 43750 | Spring, Valve | 6 |
| 168 | 44565 | Retainer, Valve Spring | 6 |
| 172 | 49382 | O-Ring, Valve Plug | 6 |
| 174 | 43849 | Plug, Valve | 6 |
| 185 | 46278 | Head, Manifold | 1 |
| 188 | 126520 | Screw, HSH, Sems (M10 x 35) | 2 |
Motor
A 6-pole motor of at least 4.49 kW drives this pump at 950 rpm.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RN 160Ma6 | 7.5 | 965 | IEC 160M | IE1 | 18.1 | |
| RN 132Mb6 uprated | 5.5 | 960 | IEC 132M | IE1 | 13.1 |
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 132, 38 mm shaft (RN 132Mb6) No Cat Pumps flange listed for this motor.
- IEC 160, 42 mm shaft (RN 160Ma6) No Cat Pumps flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- 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.
- IEC 160, 42 mm motor shaft No Cat Pumps coupling listed: you need one for a 42 mm motor shaft to 20 mm pump shaft.
Other Cat Pumps 5 Frame pumps
304545G1301310310B311317340340B340S341341G1347350350B350S351351G1357