51 series plunger pump
W1208
- 8Flow, l/min
- 120Pressure, bar
- 1450Speed, rpm
- 1.83Power, kW
50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).
Specification
- Flow
- 8 l/min
- Pressure
- 120 bar
- Speed
- 1450 rpm
- Absorbed power
- 1.83 kW
- Plunger
- 18 mm
- Shaft
- Solid
- Weight
- 5.2 kg
Kits
Other kits5
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 83 | Service kit | ||
| KIT 139 | Service kit | ||
| KIT 140 | Service kit | ||
| KIT 141 | Service kit | ||
| KIT 157 | Service kit |
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 123 | Intake/delivery valve |
Parts list
Interpump make this pump in 3 versions. The list below is for the first, male shaft (key) - GAS. The others: hollow shaft (key) + vers. B - GAS; VH Version. 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 | 99186700 | Screw m 6 x 18 UNI 5931 | 4 |
| 2 | 98210300 | Oil dip-stick G3/8 x 51 | 1 |
| 3 | 98204100 | Plug G1/4 x 9 | 1 |
| 4 | 98221600 | Tappo M24 x 1,5 x 11,2 | 6 |
| 5 | 90384700 | O-ring 20,29 x 2,62(3081) | 6 |
| 6 | 51120441 | Testata ottone Ø18 | 1 |
| 7 | 44211570 | Washer Ø8 | 3 |
| 8 | 92221600 | Nut M8 x 13 x 5 | 3 |
| 9 | 90357300 | O-ring Ø5,28 x 1,78 (2021) | 3 |
| 10 | 90502200 | Anti-extrusion ring | 3 |
| 11 | 51209051 | Protezione | 1 |
| 12 | 51160022 | Coperchio post.carter oss. (W1) | 1 |
| 13 | 90391700 | Or Ø88,57 x 2,62 (3350) | 1 |
| 14 | 99180700 | Screw m 6 x 12 UNI 5739 | 4 |
| 15 | 98210050 | Plug G3/8 x 13 TE22 | 1 |
| 16 | 51021765 | Albero eccentrico C.7.2 | 1 |
| 17 | 90063500 | Circlip Ø25 UNI 7435 | 1 |
| 18 | 91832800 | Cuscinetto a sfere 6305 | 1 |
| 19 | 90164100 | Oil seal Ø25 x 62 x 10 | 1 |
| 20 | 50150074 | Crankcase cover | 1 |
| 21 | 51010622 | Carter pompa | 1 |
| 22 | 98210000 | Plug G3/8 x 13 | 1 |
| 23 | 90360400 | O-ring 25,12 x 1,78 (2100) | 3 |
| 24 | 90384300 | O-ring 17,86 x 2,62 (123) | 3 |
| 25 | 51100151 | Anello di testa Ø18 | 3 |
| 26 | 90268100 | AN.TEN.ALT.18 x 26 x 5/3 h.p. | 3 |
| 27 | 51080370 | Anello di fondo Ø18 (TT9111) | 3 |
| 28 | 99194300 | Vite tcei M6 x 40 8.8 UNI5931 zinc. | 8 |
| 29 | 96693800 | Washer 6,4 x 10 x 0,7 | 8 |
| 30 | 51040109 | Pistone Ø18 x 25 | 3 |
| 31 | 96707000 | Rosetta Ø9 x 23 x 0,5 W1 | 3 |
| 32 | 90156500 | Anello di ten. corteco a 15 x 24 x 5 | 3 |
| 33 | 51050056 | Guida pistone | 3 |
| 34 | 97731000 | Spinotto Ø8 x 24,5 | 3 |
| 35 | 51030122 | Biella | 3 |
| 36 | 91801400 | Boccola a rullini | 1 |
| 37 | 47221301 | Oil sight glass assembly G3/4 | 1 |
| 38 | 90385900 | O-ring 25,07 x 2,62 (3100) | 1 |
| 39 | 36711501 | Intake/delivery valve | 6 |
| 40 | 91487700 | Key 8(h9)X7 x 25 UNI 6604/A | 1 |
| 41 | 90383300 | O-ring 13,95 x 2,62 (3056) | 1 |
| 42 | 90384100 | O-ring 17,12 x 2,62 (3068) | 6 |
| 43 | 36200366 | Valve seat | 6 |
| 44 | 36200176 | Valve plate | 6 |
| 45 | 94737600 | Spring Ø9,4 x 14,8 | 6 |
| 46 | 36202551 | Valve cage | 6 |
| 99 | 97595000 | Spia livello olio Ø25 x 7.8 NBR | 1 |
Motor
A 4-pole motor of at least 1.83 kW drives this pump at 1450 rpm. Single-phase motors are listed last, for a 230 V supply.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RNE 100a4 | 2.2 | 1455 | IEC 100 | IE3 | 5.9 | |
| RN 100a4 | 2.2 | 1420 | IEC 100 | IE1 | 4.9 | |
| RN 90Lb4 uprated | 1.85 | 1410 | IEC 90L | IE1 | 4.3 | |
| RNM 90Lb4 | 1.85 | 1390 | IEC 90L | Single-phase | 13.2 at 230 V |
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 90, 24 mm shaft (RN 90Lb4, RNM 90Lb4) ZF070 Motor flange, IEC 90 B14
- IEC 100, 28 mm shaft (RNE 100a4, RN 100a4) ZF091 Motor flange, IEC 100/112 B14
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 90, 24 mm motor shaft ZGWW75 Flexible coupling, IEC 90, 24 mm motor to 24 mm pump
- IEC 100, 28 mm motor shaft ZGWW94 Flexible coupling, IEC 100/112, 28 mm motor to 24 mm pump
Other Interpump 51 series pumps
T1209T1212T1508T9051TT551TT561TT741TT751TT901TT931TT941TT951TT1508TT1510TT1511TT1512TT1513TT9061TT9071TT9091W905W1210W1507WW55WW56WW74WW75WW90WW93WW94WW95WW906WW907WW909WW1508WW1509WW1510WW1511WW1513