MMD plunger pump
MMD18250R
Part number P3.020.004-2
- 18Flow, l/min
- 250Pressure, bar
- 1450Speed, rpm
- 8.72Power, kW
50 or 60 Hz The maker gives figures for both supplies.
Specification
- Flow
- 18 l/min (21.6 l/min at 60 Hz)
- Pressure
- 250 bar
- Speed
- 1450 rpm (1740 rpm at 60 Hz)
- Absorbed power
- 8.72 kW
- Max water temperature
- 65 °C
- Plunger
- 20 mm
- Shaft side
- Right
- Shaft
- Solid, Ø24 mm
- Inlet
- G 1/2"
- Outlet
- G 3/8"
- Weight
- 10.4 kg
- Oil
- 0.7 litres
Kits
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| P9.001.005 | Valve kit, Ø20 |
Water seals2
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| P9.003.025 | Plunger seal kit, Ø20 | ||
| P9.003.026 | Plunger seal kit, Ø20 |
Plungers1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| P9.004.013 | Ceramic plunger kit, Ø20 |
Oil seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| P9.039.001 | Oil seal kit, Ø20 |
Other kits2
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| P9.040.017 | Complete pump head, Ø20 | ||
| P9.041.004 | Connecting rod kit, Ø20 |
Parts list
For parts not covered by the kits above, ask a supplier and quote the model MMD18250R and part number P3.020.004-2.
Motor
A 4-pole motor of at least 8.72 kW drives this pump at 1450 rpm on 50 Hz. On a 60 Hz supply a motor with the same poles turns it at 1740 rpm. Order that motor wound for 60 Hz.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RNE 160Ma4 | 11 | 1475 | IEC 160M | IE3 | 22.4 | |
| RN 160Ma4 | 11 | 1450 | IEC 160M | IE1 | 22.4 | |
| RN 132Mb4 uprated | 9.2 | 1440 | IEC 132M | IE1 | 19.2 |
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 132Mb4) No Mazzoni flange listed for this motor.
- IEC 160, 42 mm shaft (RNE 160Ma4, RN 160Ma4) No Mazzoni 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 Mazzoni coupling listed: you need one for a 38 mm motor shaft to 24 mm pump shaft.
- IEC 160, 42 mm motor shaft No Mazzoni coupling listed: you need one for a 42 mm motor shaft to 24 mm pump shaft.
Other Mazzoni MMD pumps
MMD12250LMMD12250RMMD15250LMMD15250L (1000 rpm)MMD15250RMMD15250R (1000 rpm)MMD18250LMMD21250LMMD21250RMMD26200LMMD26200R