NMT Car Wash Heavy Duty plunger pump
NMT2120EBCWR
Part number 1.905-557.0
- 21Flow, l/min
- 200Pressure, bar
- 1450Speed, rpm
- 7.9Power, kW
50 or 60 Hz The maker gives figures for both supplies.
Specification
- Flow
- 21 l/min (25 l/min at 60 Hz)
- Pressure
- 200 bar
- Speed
- 1450 rpm (1740 rpm at 60 Hz)
- Absorbed power
- 7.9 kW (9.4 kW at 60 Hz)
- Max water temperature
- 65 °C
- Shaft side
- Right
- Shaft
- Solid
- Inlet
- G 1/2
- Outlet
- G 3/8
- Weight
- 10.3 kg
- Oil
- 0.7 litres, SAE 10-40W
Kits
Extraordinary maintenance7
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 1.099-846.0 | Plunger, 20 mm | 3 | |
| 1.904-728.0 | Complete manifold | 1 | |
| 1.904-729.0 | Valve plug assembly | 6 | |
| 1.904-806.0 | Plunger oil seal kit | 1 | |
| 1.905-542.0 | Crankcase seal kit | 1 | |
| 1.905-581.0 | Connecting rod and plunger rod assembly | 3 | |
| 1.905-584.0 | Complete seal packing, 20 mm | 1 |
Ordinary maintenance2
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 1.099-849.0 | Plunger seal kit, 20 mm | 1 | |
| 1.905-583.0 | Complete valve kit | 1 |
Optional parts1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 9.853-426.0 | Threaded brass plug G1/4 | 1 |
Tools2
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 1.099-667.0 | Tool-kit | 1 | |
| 1.904-414.0 | Oil seal extractor tool-kit | 1 |
Exploded view
Parts list
Positions are the balloon numbers on Hawk's exploded view. A part with no number of its own comes in the kit shown beside it.
| Pos | Part number | Description | Qty | In kit |
|---|---|---|---|---|
| 1 | 9.851-881.0 | Red crankcase | 1 | |
| 2 | Kit only | Plunger oil seal FKM | 3 | 1.904-806.0 |
| 3 | Kit only | O-ring Ø1.78 x 31.47 | 3 | 1.099-849.0, 1.904-728.0, 1.905-584.0 |
| 4 | Kit only | Ecobrass pressure ring 20 mm | 3 | 1.904-728.0, 1.905-584.0 |
| 5 | Kit only | Low pressure "U" seal Ø20 mm | 3 | 1.099-849.0, 1.904-728.0, 1.905-584.0 |
| 6 | Kit only | Ecorass intermediate ring 20 mm | 3 | 1.904-728.0, 1.905-584.0 |
| 7 | Kit only | High pressure "U" seal Ø20 mm | 3 | 1.099-849.0, 1.904-728.0, 1.905-584.0 |
| 8 | Kit only | Bonded seal G1/2 stainless steel | 1 | 1.904-728.0 |
| 9 | Kit only | Plug G1/2 stainless steel | 1 | 1.904-728.0 |
| 10 | Kit only | Chrome plated manifold housing | 1 | 1.904-728.0 |
| 11 | Kit only | O-ring Ø2.62 x 17.13 | 6 | 1.904-728.0, 1.905-583.0 |
| 12 | Kit only | Valve assembly | 6 | 1.904-728.0, 1.905-583.0 |
| 13 | Kit only | O-ring Ø2.62 x 20.29 | 6 | 1.904-728.0, 1.904-729.0, 1.905-583.0 |
| 14 | Kit only | Chromed valve plug | 6 | 1.904-728.0, 1.904-729.0 |
| 15 | Kit only | Manifold stud bolt stainless steel | 8 | 1.904-728.0 |
| 16 | Kit only | Washer Ø8,5 stainless steel | 16 | 1.904-728.0 |
| 17 | Kit only | Bonded seal G3/8 stainless steel | 1 | 1.904-728.0 |
| 18 | Kit only | Stainless steel plug G3/8 | 2 | 1.904-728.0 |
| 19 | Kit only | Valve seat | 6 | 1.904-728.0, 1.905-583.0 |
| 20 | Kit only | Valve plate | 6 | 1.904-728.0, 1.905-583.0 |
| 21 | Kit only | Valve spring | 6 | 1.904-728.0, 1.905-583.0 |
| 22 | Kit only | Valve cage | 6 | 1.904-728.0, 1.905-583.0 |
| 23 | 9.851-476.0 | Hex socket screw M8 x 20 stainless steel | 8 | |
| 24 | 9.850-639.0 | Red closed bearing housing | 1 | |
| 25 | Kit only | O-ring Ø1.78 x 60.05 | 2 | 1.905-542.0 |
| 26 | 9.850-349.0 | Roller bearing 33205 | 2 | |
| 27 | 9.850-179.0 | Single - ended shaft | 1 | |
| 28 | 9.850-446.0 | Crankshaft key | 1 | |
| 29 | 9.851-286.0 | Oil dip stick | 1 | |
| 30 | Kit only | Crankshaft seal | 1 | 1.905-542.0 |
| 31 | 9.850-547.0 | Shim | 1 | |
| 32 | 9.850-638.0 | Red bearing housing | 1 | |
| 33 | Kit only | Plunger nut stainless steel | 3 | 1.099-846.0, 1.905-581.0 |
| 34 | Kit only | Spacer Ø11.2/15 x 0.5 stainless steel | 3 | 1.099-846.0, 1.905-581.0 |
| 35 | Kit only | Plunger 20 mm | 3 | 1.099-846.0 |
| 36 | Kit only | Spacer Ø11.3/24 x 0.5 stainlees steel | 3 | 1.099-846.0 |
| 37 | Kit only | O-ring Ø1.78 x 7.66 | 3 | 1.099-846.0, 1.905-581.0 |
| 38 | Kit only | Teflon ring | 3 | 1.099-846.0, 1.905-581.0 |
| 39 | Kit only | Plunger rod stainless steel | 3 | 1.905-581.0 |
| 40 | Kit only | Connecting rod | 3 | 1.905-581.0 |
| 41 | Kit only | Connecting rod pin | 3 | 1.905-581.0 |
| 42 | Kit only | Spring washer Ø6 | 6 | 1.905-581.0 |
| 43 | Kit only | Connecting rod screw M6 x 30 | 6 | 1.905-581.0 |
| 44 | Kit only | O-ring Ø2.62 x 126.67 | 1 | 1.905-542.0 |
| 45 | 9.853-776.0 | Red crankcase cover | 1 | |
| 46 | Kit only | O-ring Ø1.78 x 14 | 1 | 1.905-542.0 |
| 47 | Kit only | Brass plug G 3/8 | 1 | 1.905-542.0 |
| 48 | Kit only | Sight glass, G3/4 | 1 | 1.905-542.0 |
| 49 | 9.851-475.0 | Cover screw M6 x 16 stainless steel | 4 |
Motor
A 4-pole motor of at least 7.9 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, where it takes 9.4 kW. Order that motor wound for 60 Hz and rated for at least that power.
| 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) 1.099-531.0 Motor flange, IEC 132 B14
- IEC 160, 42 mm shaft (RNE 160Ma4, RN 160Ma4) No Hawk 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 1.099-545.0 Flexible coupling, IEC 132, 38 mm motor to 24 mm pump
- IEC 160, 42 mm motor shaft No Hawk coupling listed: you need one for a 42 mm motor shaft to the pump shaft.