66 series plunger pump
WK5021
- 21Flow, l/min
- 500Pressure, bar
- 1450Speed, rpm
- 20.59Power, kW
50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).
Specification
- Flow
- 21 l/min
- Pressure
- 500 bar
- Speed
- 1450 rpm
- Absorbed power
- 20.59 kW
- Plunger
- 18 mm
- Shaft
- Solid, Ø24 mm
- Weight
- 21.5 kg
Kits
Oil seals2
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 150 | Intake/delivery valve |
Complete seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 176 | Complete seals Ø18 |
Other kits1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 180 | Seals Ø18 |
Exploded view
Parts list
Interpump make this pump in 3 versions. The list below is for the first, male shaft (key). The others: male shaft (key) - Flushing; hy-Pack version - GAS + gear motor 53cc. 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 | 66124936 | Testata pistone Ø18 | 1 |
| 2 | 90357600 | Or Ø6.75 x 1.78 (106) | 3 |
| 3 | 98197200 | Plug G1/8 x 8 S.S. | 3 |
| 4 | 66210270 | Distanziale valvola m 12 | 3 |
| 5 | 90511800 | Anello antiestr. Ø19.5 x 22 x 1.5 | 3 |
| 6 | 90359600 | Or Ø18.77 x 1.78 (2075) | 3 |
| 7 | 90384100 | O-ring 17,12 x 2,62 (3068) | 6 |
| 8 | 36200366 | Valve seat | 6 |
| 9 | 36203266 | Spherical valve | 6 |
| 10 | 94737600 | Spring Ø9,4 x 14,8 | 6 |
| 11 | 36202551 | Valve cage | 6 |
| 12 | 36712101 | Intake/delivery valve | 6 |
| 13 | 90385700 | O-ring 23,81 x 2,62 (132) | 6 |
| 14 | 90516500 | Anti-extr.ring Ø24.7 x 29 x 1.5 | 3 |
| 15 | 66210070 | Tappo Ø29 | 3 |
| 16 | 66220336 | Coperchio valvole | 1 |
| 17 | 99368700 | Vite tcei M10 x 30 UNI en ISO 4762 | 8 |
| 18 | 90384300 | O-ring 17,86 x 2,62 (123) | 3 |
| 19 | 90511500 | Anti-extrusion ring | 3 |
| 20 | 66210166 | Bussola | 3 |
| 21 | 99382000 | Vite tcei M10 x 120 UNI5931 8.8 zincata | 8 |
| 22 | 96751400 | Washer 21,5 x 27 x 1,5 | 1 |
| 23 | 98217900 | Plug G 1/2 x 10 nickel | 1 |
| 24 | 98209900 | Plug g. 3/8 x 13 nickel | 1 |
| 25 | 93185800 | Rondella con tenuta G3/8" spec. | 1 |
| 26 | 66219566 | Piston bolt | 3 |
| 27 | 90358400 | O-ring Ø10,82 x 1,78(2043)90SH | 3 |
| 28 | 66040309 | Piston Ø18 x 54 | 3 |
| 29 | 90265500 | Packing 18.0 x 28 x 10.0 hp 66 | 3 |
| 30 | 66216370 | Intermediate ring Ø18 | 3 |
| 31 | 90265200 | Seal Ø18 x 26 x 6,5 l.p. | 3 |
| 32 | 90361600 | O-ring 34,65 x 1,78 (2137) | 3 |
| 33 | 66080370 | Packing retainer Ø18 | 3 |
| 34 | 90358500 | O-ring 10,82 x 1,78 (2043) | 1 |
| 35 | 96710100 | Washer Ø10 x 28 x 0.5 | 3 |
| 36 | 66030001 | Connecting rod | 3 |
| 37 | 97740500 | Connecting rod-pin Ø14 x 39 | 3 |
| 38 | 99364400 | Screw m 10 x 18-5931 | 1 |
| 39 | 98204250 | Plug G1/4"x12 | 1 |
| 40 | 96710600 | Washer 10,2 | 1 |
| 41 | 47200074 | Pump foot | 2 |
| 42 | 66160022 | Rear cover | 1 |
| 43 | 90392200 | O-ring Ø133.02 x 2,62(3525) | 1 |
| 44 | 98210600 | Oil dip-stick G3/8 x 80 | 1 |
| 45 | 99309900 | Screw m 8 x 35 UNI 5931 | 6 |
| 46 | 66010022 | Crankcase | 1 |
| 47 | 90912600 | Bushing 22 x 25 x 30 | 3 |
| 48 | 90162500 | Oil seal 22 x 32 x 5 | 3 |
| 49 | 66050066 | Piston guide - S.S. | 3 |
| 50 | 99303900 | Screw m 8 x 16 UNI 5931 | 8 |
| 51 | 90075600 | Circlip Ø45 (ZJ45) | 1 |
| 52 | 70211801 | Oil sight glass | 1 |
| 53 | 90387700 | O-ring 39,34 x 2,62 (3156) | 1 |
| 54 | 91838000 | Roller bearing NJ2206EC | 2 |
| 55 | 47151222 | Side crankcase cover for oil gauge | 1 |
| 56 | 90391300 | O-ring 67,95 x 2,62 (3268) | 2 |
| 57 | 99188400 | Screw m 6 x 20 UNI 5931 | 4 |
| 58 | 90164800 | Oil seal 30 x 55 x 7 | 1 |
| 59 | 66020035 | Crankshaft C.19 - Ø24 | 1 |
| 60 | 91489200 | Key 8(h9)X7 x 35 UNI 6604/A | 1 |
| 61 | 47151022 | Open side cover (47-66) | 1 |
Motor
A 4-pole motor of at least 20.59 kW drives this pump at 1450 rpm.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RN 180La4 | 22 | 1465 | IEC 180L | IE1 | 42 | |
| RN 160Lc4 uprated | 22 | 1450 | IEC 160L | IE1 | 42 |
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 160, 42 mm shaft (RN 160Lc4) No Interpump flange listed for this motor.
- IEC 180, 48 mm shaft (RN 180La4) No Interpump flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 160, 42 mm motor shaft ZG66160 Flexible coupling, IEC 160, 42 mm motor shaft
- IEC 180, 48 mm motor shaft No Interpump coupling listed: you need one for a 48 mm motor shaft to 24 mm pump shaft.
Other Interpump 66 series pumps
T1750T2040T2530T2535T2830T3021T3025T4018T5015T5018W1550W1555W1570W1755W2030W2035W2141W2525W3018W3021W3025W3521W3523W3535W4015W4018W4021W4518W5015W5018WG1570WK6015