HFR plunger pump
HFR8020SL
Part number 1.905-413.0
- 80Flow, l/min
- 200Pressure, bar
- 1000Speed, rpm
- 31.5Power, kW
50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Specification
- Flow
- 80 l/min
- Pressure
- 200 bar
- Speed
- 1000 rpm
- Absorbed power
- 31.5 kW
- Max water temperature
- 40 °C
- Shaft side
- Left
- Shaft
- Solid
- Inlet
- 1 - 1 1/4" G
- Outlet
- G 3/4
- Weight
- 49 kg
- Oil
- 3.5 litres
Kits
Extraordinary maintenance4
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 1.099-817.0 | Plunger oil seal kit | 1 | |
| 1.905-410.0 | Complete seals packing Ø36 mm | 1 | |
| 1.905-411.0 | Plunger Ø36 mm | 3 | |
| 1.905-706.0 | Crankcase seal kit | 1 |
Ordinary maintenance2
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 1.905-409.0 | Plunger seals Ø36 mm | 1 | |
| 1.905-704.0 | Complete valve | 1 |
Tools1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 1.905-414.0 | Tool-kit |
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 | 9.851-902.0 | Crankcase | 1 | |
| 2 | Kit only | Plunger oil seal | 3 | 1.099-817.0 |
| 3 | Kit only | Plastic bushing | 3 | 1.099-817.0 |
| 4 | Kit only | O-ring Ø2.62 x 56,82 | 3 | 1.905-409.0, 1.905-410.0 |
| 5 | Kit only | Pressure ring 36 mm | 3 | 1.905-410.0 |
| 6 | Kit only | "U" seal Ø36 x 44 | 3 | 1.905-409.0, 1.905-410.0 |
| 7 | Kit only | Intermediate ring 36 mm | 3 | 1.905-410.0 |
| 9 | Kit only | "U" seal Ø36 x 46 x 10,4 | 6 | 1.905-409.0, 1.905-410.0 |
| 11 | Kit only | Bonded seal 1” ¼ NBR | 1 | |
| 12 | Kit only | Brass plug G1” 1/4 | 1 | |
| 13 | Kit only | Manifold housing Ø36 | 1 | |
| 14 | Kit only | Valve assembly | 6 | 1.905-704.0 |
| 15 | Kit only | O-ring Ø2.62 x 31,42 | 6 | 1.905-704.0 |
| 16 | Kit only | Back ring | 6 | 1.905-704.0 |
| 17 | Kit only | Valve plug | 6 | |
| 18 | Kit only | Valves cover | 2 | |
| 19 | Kit only | Valve cover screw | 12 | |
| 20 | Kit only | Valve plug screw | 6 | |
| 21 | 9.851-471.0 | Manifold stud bolt | ||
| 22 | 9.851-472.0 | Manifold stud bolt | 4 | |
| 23 | Kit only | Copper washer | 1 | |
| 24 | Kit only | Inox plug G3/4 | 1 | |
| 25 | Kit only | O-ring Ø2.62 x 28.25 | 6 | 1.905-704.0 |
| 26 | Kit only | Back ring | 6 | 1.905-704.0 |
| 27 | Kit only | Valve seat | 6 | 1.905-704.0 |
| 28 | Kit only | Valve plate | 6 | 1.905-704.0 |
| 29 | Kit only | Valve spring | 6 | 1.905-704.0 |
| 30 | Kit only | Valve cage | 6 | 1.905-704.0 |
| 31 | 9.851-468.0 | Bearing housing screw | 12 | |
| 32 | 9.850-646.0 | Closed bearing screw | 1 | |
| 33 | Kit only | O-ring Ø2.62 x 120.32 | 2 | 1.905-706.0 |
| 34 | 9.850-353.0 | Roller bearing | 2 | |
| 35 | 9.850-185.0 | Single - ended shaft | 1 | |
| 36 | 9.850-449.0 | Crankshaft KIT | 1 | |
| 37 | 9.851-454.0 | Eyebolt | 1 | |
| 38 | Kit only | Crankshaft seal | 1 | 1.905-706.0 |
| 39 | 9.850-645.0 | Bearing housing | 1 | |
| 40 | Kit only | Plunger bolt | 3 | 1.905-411.0 |
| 41 | Kit only | O-ring Ø1.78 x 11.11 | 3 | 1.905-411.0 |
| 42 | Kit only | Plunger Ø36 | 3 | 1.905-411.0 |
Motor
This pump needs 31.5 kW at 1000 rpm, more than the largest motor of that speed listed here.
Flange
The flange depends on the motor, so it is chosen with the motor.
Coupling
The coupling depends on the motor shaft, so it is chosen with the motor.
Other Hawk HFR pumps
HFR40FHFR40SHFR60FLHFR60FRHFR60SLHFR60SRHFR80FLHFR80FRHFR80SHFR105SLHFR105SRHFR120SLHFR120SRHFR8020SR