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Mains Units

44 series plunger pump

WW967

  • 13Flow, l/min
  • 250Pressure, bar
  • 3400Speed, rpm
  • 6.25Power, kW

60 Hz Rated at a motor speed for 60 Hz mains (North America, parts of South America and Asia).

Interpump 44 series pump

Specification

Flow
13 l/min
Pressure
250 bar
Speed
3400 rpm
Absorbed power
6.25 kW
Plunger
13 mm
Shaft
Solid, Ø24 mm
Weight
8.7 kg

Exploded view (PDF, Interpump)

Kits

Oil seals1

Part numberDescriptionPer pumpSuppliers
KIT 23Oil seal Ø20 x 30 x 51 

Valves1

Part numberDescriptionPer pumpSuppliers
KIT 123Intake/delivery valve1 

Other kits5

Part numberDescriptionPer pumpSuppliers
KIT 124Valve caps 
KIT 152Packing retainer Ø13 
KIT 154Intermediate ring Ø13 
KIT 155Head ring Ø13 
KIT 156Complete seal for piston Ø13 

Water seals1

Part numberDescriptionPer pumpSuppliers
KIT 153Packing Ø13 

Exploded view

Interpump exploded view of the 44 series pump, with position numbers
Interpump's drawing. The numbers match the positions in the parts list below. Open the picture to zoom in.

Parts list

Interpump make this pump in 3 versions. The list below is for the first, male shaft (key). The others: hollow shaft (key) Ø28,6 - vers. A; 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.

PosPart numberDescriptionQty
1 44120641 Brass head (Ø13)1
2 99317500 Screw m 8 x 60 UNI 59318
4 90384100 O-ring 17,12 x 2,62 (3068)6
5 36200366 Valve seat6
6 36200176 Valve plate6
7 94737600 Spring Ø9,4 x 14,86
8 36202551 Valve cage6
9 90384700 O-ring 20,29 x 2,62(3081)6
10 98222600 Valve cap M24 x 1,5 x 176
11 36711501 Intake/delivery valve6
12 99180700 Screw m 6 x 12 UNI 57398
13 50150074 Crankcase cover1
14 53210851 Oil level gauge1
15 90389800 O-ring 56,82 x 2,62 (3225)1
16 91833100 Ball bearing 6305 skf2
17 90161400 Oil seal 20 x 30 x 53
18 44010022 Crankcase1
19 98210300 Oil dip-stick G3/8 x 511
20 44020335 Crankshaft C.11 (Ø24)1
21 91489200 Key 8(h9)X7 x 35 UNI 6604/A1
22 44050266 Piston guide M53
23 44030022 Connecting rod3
24 90392000 O-ring 101,27 x 2,62 (3400)1
25 44160022 Rear crankcase cover1
26 99183700 Screw m 6 x 14 UNI 59315
27 90358500 O-ring 10,82 x 1,78 (2043)1
28 98204250 Plug G1/4"x121
29 97734000 Connecting-rod pin Ø10 x 29,53
30 96699000 Washer Ø7.5 x 23 x 0.53
31 96690500 Washer Ø5 x 11.5 x 0.4 INOX+FKM58/59/63HT3
32 99169000 Screw M05 x 55 spec. A2-703
33 58040009 Piston Ø13 x 423
36 90164100 Oil seal Ø25 x 62 x 101
37 50200074 Pump foot2
38 96701600 Washer 8,44
39 99303700 Screw m 8 x 16-57394
40 90361200 O-ring 31,47 x 1,78 (2125)3
41 44080370 Packing retainer Ø133
42 44216270 Intermediate ring Ø133
43 90507600 Anti-extrusion ring Ø13 x 17 x 23
44 90260200 Packing Ø13 x 21 x 4 h.p.3
45 44100251 Head ring Ø133
46 98210000 Plug G3/8 x 131
47 98217600 Plug G1/2 x 101
48 96738000 Washer 17,5 x 23 x 1,51
49 96751400 Washer 21,5 x 27 x 1,51
50 98196600 Plug G1/8 x 81
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 ZJ301
54 53150022 Side crankcase cover1
98 53150001 Coperchio laterale carter con spia olio montata S.44-531
99 97595000 Spia livello olio Ø25 x 7.8 NBR1

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 6.25 kW. Order the one you pick wound for 60 Hz and your supply voltage.

MotorkWrpmFrameClassA at 400 VSuppliers
RNE 132Sb2 7.52910IEC 132SIE313.1  
RN 132Sb2 7.52900IEC 132SIE114.8  
RN 112c2 uprated 7.52860IEC 112IE115.5  

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.

Coupling

The flexible coupling joins the motor shaft to the pump shaft inside the flange.

Other Interpump 44 series pumps

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