LWR-K plunger pump
LWR-K 3525 S
Part number 6302 0754
- 12.7Flow, l/min
- 172Pressure, bar
- 2800Speed, rpm
- 4Power, kW
50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Specification
- Flow
- 12.7 l/min
- Pressure
- 172 bar
- Speed
- 2800 rpm
- Absorbed power
- 4 kW
- Shaft
- Solid, Ø24 mm
- Weight
- 7.2 kg
Kits
Plungers1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 2409.0071 | Plunger kit | 1 |
Water seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 5019.0035 | Water seal kit | 1 |
Oil seals2
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| 5025.0011 | Valve kit | 1 |
Exploded view
Parts list
Positions are the balloon numbers on Comet's exploded view.
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 3218.0313 | Brass Pump Manifold Ø15 | 1 |
| 2 | 3609.0108 | Screw M6x55 | 8 |
| 3 | 2409.0123 | Check Valve Kit | 1 |
| 4 | 1210.0460 | O-Ring Ø2,4x4,3 | 1 |
| 5 | 2409.0122 | Check Valve | 1 |
| 6 | 1802.0197 | Spring | 1 |
| 7 | 3410.0289 | Injector Body Kit Ø1,8 M22x1,5 | 1 |
| 8 | 1210.0398 | O-Ring | 1 |
| 9 | 1210.0402 | O-Ring | 1 |
| 10 | 3202.0018 | Cap G1/8” | 1 |
| 11 | 2811.0086 | Washer Ø21,2x27x1,5 | 1 |
| 12 | 3202.0015 | Plug G1/2” | 1 |
| 13 | 2811.0084 | Washer Ø16,7x22x1,5 | 1 |
| 14 | 3200.0007 | Plug G3/8” | 1 |
| 15 | 1210.0046 | O-Ring Ø2,62x17,13 | 6 |
| 16 | 3009.0087 | Suct./Del. Valve Seat | 6 |
| 17 | 3604.0017 | Suct./Del. Valve | 6 |
| 18 | 1802.0177 | Suct./Del. Valve Spring | 6 |
| 19 | 1205.0025 | Suct./Del. Valve Cage | 6 |
| 20 | 1220.0030 | Suct./Del. Valve Ass.y kit | 6 |
| 21 | 1210.0048 | O-Ring Ø2,62x20,24 | 6 |
| 22 | 3202.0312 | Cap + O-Ring | 6 |
| 23 | 3609.0088 | Screw M5x10 | 3 |
| 24 | 1004.0012 | Crankcase Flange | 1 |
| 25 | 0402.0360 | Cover | 1 |
| 26 | 1210.0386 | O-Ring Ø3,53x44,04 | 1 |
| 27 | 3019.0011 | Outer Seeger | 1 |
| 28 | 0438.0069 | Ball Bearing Ø20x52x15 | 1 |
| 29 | 0403.0128 | Pump Crankcase | 1 |
| 30 | 3200.0051 | Oil Dipstick | 1 |
| 31 | 0600.0048 | Special Bolt | 3 |
| 32 | 2811.0080 | Washer Ø8,2x14x1,5 | 3 |
| 33 | 0202.0020 | Ceramic Bushing Ø15 | 3 |
| 34 | 2812.0038 | Washer | 3 |
| 35 | 1210.0055 | O-Ring Ø1,78x6,07 | 3 |
| 36 | 2409.0044 | Piston Guides | 3 |
| 37 | 3011.0014 | Gudgeon Pin | 3 |
| 38 | 0205.0048 | Con. Rod Assembly | 3 |
| 39 | 3019.0033 | Outer Seeger Ø28 | 1 |
| 40 | 3201.0026 | Oil Indicator | 1 |
| 41 | 1210.0451 | O-Ring Ø2x24 | 1 |
| 42 | 1210.0621 | O-Ring Ø3x94 | 1 |
| 43 | 3609.0041 | Screw M6x25 | 4 |
| 44 | 0402.0142 | Crankcase Cover | 1 |
| 45 | 1210.0441 | O-Ring Ø2x14 | 1 |
| 46 | 3200.0007 | Plug G3/8” | 1 |
| 47 | 0019.0095 | Oil Seal Ø15x24x5 | 3 |
| 48 | 1210.0223 | O-Ring Ø1,78x26,7 | 3 |
| 49 | 0009.0198 | Packing Retainer Ø15 | 3 |
| 50 | 1241.0030 | Packing Ø15 | 3 |
| 51 | 1241.0065 | Packing Ø15 | 3 |
| 52 | 0009.0196 | Packing Head Ring Ø15 | 3 |
| 53 | 1215.0584 | Reg. Valve Kit + Seat 140 2030 | 1 |
| 53 | 1215.0585 | Reg. Valve Kit + Seat 180 2610 | 1 |
| 54 | 1817.0054 | Pressure knob | 1 |
| 55 | 3301.0543 | Detergent Knob Kit | 1 |
| 56 | 3003.0024 | Ball 7/32” | 1 |
| 57 | 1802.0180 | Spring | 1 |
| 58 | 3200.0017 | Plug G1/8”x8 | 1 |
| 60 | 0001.0333 | Throughshaft Ø24 | 1 |
| 61 | 1602.0045 | Key 8x7x25 | 1 |
| 62 | 0438.0071 | Ball Bearing Ø25x62x17 | 1 |
| 63 | 3020.0012 | Inner Seeger | 1 |
| 64 | 3019.0006 | Outer Seeger | 1 |
| 65 | 0019.0094 | Oil Seal Ø25x62x10/7 | 1 |
| 70 | 0001.0340 | Hollow Shaft Ø24 | 1 |
| 71 | 0438.0015 | Ball Bearing Ø35x62x14 | 1 |
| 72 | 2812.0064 | Spacer | 1 |
| 73 | 3020.0012 | Inner Seeger Ø62 | 1 |
| 74 | 3019.0004 | Outer Seeger Ø35 | 1 |
| 75 | 0019.0075 | Oil Seal Ø35x62x7 | 1 |
| 76 | 3607.0015 | Hexagonal Screw M8x20 | 4 |
| 77 | 3016.0014 | Flange MEC | 1 |
| 78 | 3609.0032 | Screw M6x20 | 4 |
Motor
A 2-pole motor of at least 4 kW drives this pump at 2800 rpm.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RNE 112a2 | 4 | 2910 | IEC 112 | IE3 | 7 | |
| RN 112a2 | 4 | 2895 | IEC 112 | IE1 | 7.8 | |
| RN 100b2 uprated | 4 | 2850 | IEC 100 | IE1 | 8 |
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 100, 28 mm shaft (RN 100b2) No Comet flange listed for this motor.
- IEC 112, 28 mm shaft (RNE 112a2, RN 112a2) No Comet flange listed for this motor.
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 100, 28 mm motor shaft No Comet coupling listed: you need one for a 28 mm motor shaft to 24 mm pump shaft.
- IEC 112, 28 mm motor shaft No Comet coupling listed: you need one for a 28 mm motor shaft to 24 mm pump shaft.