8 Frame block-style plunger pump
781
- 17.8Flow, l/min
- 345Pressure, bar
- 1750Speed, rpm
- 12Power, kW
60 Hz Rated at a motor speed for 60 Hz mains (North America, parts of South America and Asia).

Specification
- Flow
- 17.8 l/min
- Pressure
- 345 bar
- Speed
- 1750 rpm
- Absorbed power
- 12 kW
- Plunger
- 14 mm
- Shaft
- Solid, Ø24 mm
- Weight
- 21.8 kg
Kits
Seal kits6
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 76286 | Seal kit, STHT (.3400) | 1 | |
| 76883 | Seal kit, EPDM (.0220) | 1 | |
| 701883 | Seal kit, NBR (STD) | 1 | |
| 701885 | Seal kit, HT (.3000) | 1 | |
| 701920 | Seal kit, FPM (.0110) | 1 | |
| 702843 | Seal kit, FFKM (.0770) | 1 |
Valves4
Exploded view
Parts list
For parts not covered by the kits above, ask a supplier and quote the model 781.
Motor
Rated at 1750 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 12 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 160La4 | 15 | 1465 | IEC 160L | IE3 | 30.5 | |
| RN 160La4 | 15 | 1450 | IEC 160L | IE1 | 30 |
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 160, 42 mm shaft (RNE 160La4, RN 160La4) No Cat Pumps flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 160, 42 mm motor shaft No Cat Pumps coupling listed: you need one for a 42 mm motor shaft to 24 mm pump shaft.