RX plunger pump
RX 3050
Part number 18.2000.97.3
- 30Flow, l/min
- 500Pressure, bar
- 1450Speed, rpm
- 29Power, kW
50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Specification
- Flow
- 30 l/min
- Pressure
- 500 bar
- Speed
- 1450 rpm
- Absorbed power
- 29 kW
- Max water temperature
- 74 °C
- Plunger
- 20 mm
- Shaft
- Solid, Ø30 mm
- Inlet
- 3/4 BSP
- Outlet
- 3/8 BSP
- Oil
- 1.5 litres, SAE 75 - W 90
Kits
Oil seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 089816973 | Radial ring kit 146 |
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 189807973 | Valve kit 331 |
Water seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 189809973 | Seal kit 333, Ø20 mm plungers |
Parts list
For parts not covered by the kits above, ask a supplier and quote the model RX 3050 and part number 18.2000.97.3.
Motor
A 4-pole motor of at least 29 kW drives this pump at 1450 rpm.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RN 200a4 | 30 | 1475 | IEC 200 | IE1 | 57 | |
| RN 180Lb4 uprated | 30 | 1465 | IEC 180L | IE1 | 58 |
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 180, 48 mm shaft (RN 180Lb4) No Bertolini flange listed for this motor.
- IEC 200, 55 mm shaft (RN 200a4) No Bertolini flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 180, 48 mm motor shaft No Bertolini coupling listed: you need one for a 48 mm motor shaft to 30 mm pump shaft.
- IEC 200, 55 mm motor shaft No Bertolini coupling listed: you need one for a 55 mm motor shaft to 30 mm pump shaft.