44 series plunger pump
WW966
- 11Flow, l/min
- 250Pressure, bar
- 3400Speed, rpm
- 5.51Power, kW
60 Hz Rated at a motor speed for 60 Hz mains (North America, parts of South America and Asia).

Specification
- Flow
- 11 l/min
- Pressure
- 250 bar
- Speed
- 3400 rpm
- Absorbed power
- 5.51 kW
- Plunger
- 13 mm
- Shaft
- Solid, Ø24 mm
- Weight
- 8.7 kg
Kits
Oil seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 23 | Oil seal Ø20 x 30 x 5 | 1 |
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 123 | Intake/delivery valve | 1 |
Other kits5
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 124 | Valve caps | ||
| KIT 152 | Packing retainer Ø13 | ||
| KIT 154 | Intermediate ring Ø13 | ||
| KIT 155 | Head ring Ø13 | ||
| KIT 156 | Complete seal for piston Ø13 |
Water seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 153 | Packing Ø13 |
Exploded view
Parts list
Interpump make this pump in 2 versions. The list below is for the first, male shaft (key). The others: hollow shaft (key) Ø25,4 - vers. C. Their parts are in Interpump's parts sheet (link above).
Positions are the balloon numbers on Interpump's exploded view.
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 44120641 | Brass head (Ø13) | 1 |
| 2 | 99317500 | Screw m 8 x 60 UNI 5931 | 8 |
| 4 | 90384100 | O-ring 17,12 x 2,62 (3068) | 6 |
| 5 | 36200366 | Valve seat | 6 |
| 6 | 36200176 | Valve plate | 6 |
| 7 | 94737600 | Spring Ø9,4 x 14,8 | 6 |
| 8 | 36202551 | Valve cage | 6 |
| 9 | 90384700 | O-ring 20,29 x 2,62(3081) | 6 |
| 10 | 98222600 | Valve cap M24 x 1,5 x 17 | 6 |
| 11 | 36711501 | Intake/delivery valve | 6 |
| 12 | 99180700 | Screw m 6 x 12 UNI 5739 | 8 |
| 13 | 50150074 | Crankcase cover | 1 |
| 14 | 53210851 | Oil level gauge | 1 |
| 15 | 90389800 | O-ring 56,82 x 2,62 (3225) | 1 |
| 16 | 91833100 | Ball bearing 6305 skf | 2 |
| 17 | 90161400 | Oil seal 20 x 30 x 5 | 3 |
| 18 | 44010022 | Crankcase | 1 |
| 19 | 98210300 | Oil dip-stick G3/8 x 51 | 1 |
| 20 | 44020035 | Crankshaft C.9.5 (Ø24) | 1 |
| 21 | 91489200 | Key 8(h9)X7 x 35 UNI 6604/A | 1 |
| 22 | 44050266 | Piston guide M5 | 3 |
| 23 | 44030022 | Connecting rod | 3 |
| 24 | 90392000 | O-ring 101,27 x 2,62 (3400) | 1 |
| 25 | 44160022 | Rear crankcase cover | 1 |
| 26 | 99183700 | Screw m 6 x 14 UNI 5931 | 5 |
| 27 | 90358500 | O-ring 10,82 x 1,78 (2043) | 1 |
| 28 | 98204250 | Plug G1/4"x12 | 1 |
| 29 | 97734000 | Connecting-rod pin Ø10 x 29,5 | 3 |
| 30 | 96699000 | Washer Ø7.5 x 23 x 0.5 | 3 |
| 31 | 96690500 | Washer Ø5 x 11.5 x 0.4 INOX+FKM58/59/63HT | 3 |
| 32 | 99169000 | Screw M05 x 55 spec. A2-70 | 3 |
| 33 | 58040009 | Piston Ø13 x 42 | 3 |
| 36 | 90164100 | Oil seal Ø25 x 62 x 10 | 1 |
| 37 | 50200074 | Pump foot | 2 |
| 38 | 96701600 | Washer 8,4 | 4 |
| 39 | 99303700 | Screw m 8 x 16-5739 | 4 |
| 40 | 90361200 | O-ring 31,47 x 1,78 (2125) | 3 |
| 41 | 44080370 | Packing retainer Ø13 | 3 |
| 42 | 44216270 | Intermediate ring Ø13 | 3 |
| 43 | 90507600 | Anti-extrusion ring Ø13 x 17 x 2 | 3 |
| 44 | 90260200 | Packing Ø13 x 21 x 4 h.p. | 3 |
| 45 | 44100251 | Head ring Ø13 | 3 |
| 46 | 98210000 | Plug G3/8 x 13 | 1 |
| 47 | 98217600 | Plug G1/2 x 10 | 1 |
| 48 | 96738000 | Washer 17,5 x 23 x 1,5 | 1 |
| 49 | 96751400 | Washer 21,5 x 27 x 1,5 | 1 |
| 50 | 98196600 | Plug G1/8 x 8 | 1 |
| 51 | 90260300 | Packing Ø13 x 23 x 5,8 l.p. | 3 |
| 52 | 90385900 | O-ring 25,07 x 2,62 (3100) | 1 |
| 53 | 90067100 | Circlip ZJ30 | 1 |
| 54 | 53150022 | Side crankcase cover | 1 |
| 98 | 53150001 | Coperchio laterale carter con spia olio montata S.44-53 | 1 |
| 99 | 97595000 | Spia livello olio Ø25 x 7.8 NBR | 1 |
Motor
Rated at 3400 rpm, the speed of a 2-pole motor on a 60 Hz supply. The motors below are listed with their 50 Hz figures and are at least 5.51 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 132Sb2 | 7.5 | 2910 | IEC 132S | IE3 | 13.1 | |
| RN 132Sb2 | 7.5 | 2900 | IEC 132S | IE1 | 14.8 | |
| RN 112c2 uprated | 7.5 | 2860 | IEC 112 | IE1 | 15.5 |
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 112, 28 mm shaft (RN 112c2) ZF044 Motor flange, IEC 100/112 B14
- IEC 132, 38 mm shaft (RNE 132Sb2, RN 132Sb2) No Interpump flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 112, 28 mm motor shaft ZG044 Flexible coupling, IEC 100/112, 28 mm motor to 24 mm pump
- IEC 132, 38 mm motor shaft No Interpump coupling listed: you need one for a 38 mm motor shaft to 24 mm pump shaft.
Other Interpump 44 series pumps
W97W112W124W130W140W150W154W154MW170W200W204W950W951W952W953W954W955W956W957W958W959W14200W16180WW116WW136WW156WW176WW186WW189WW206WW209WW960WW961WW962WW967WW968