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Mains Units

LW-K plunger pump

LW-K 3020 S

Part number 6300 0351

  • 11.2Flow, l/min
  • 138Pressure, bar
  • 1450Speed, rpm
  • 3Power, kW

50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Comet LW-K pump

Specification

Flow
11.2 l/min
Pressure
138 bar
Speed
1450 rpm
Absorbed power
3 kW
Shaft
Solid, Ø24 mm
Weight
7.2 kg

Data sheet (PDF, Comet)

Kits

Plungers2

Part numberDescriptionPer pumpSuppliers
2409.0071Plunger kit1 
2409.0072Plunger kit1 

Water seals2

Part numberDescriptionPer pumpSuppliers
5019.0035Water seal kit1 
5019.0037Water seal kit1 

Oil seals2

Part numberDescriptionPer pumpSuppliers
5019.0040Oil seal kit1 
5019.0041Oil seal kit1 

Valves1

Part numberDescriptionPer pumpSuppliers
5025.0011Valve kit1 

Exploded view

Comet exploded view of the LW-K pump, with position numbers
Comet's drawing. The numbers match the positions in the parts list below. Open the picture to zoom in.

Parts list

Positions are the balloon numbers on Comet's exploded view.

PosPart numberDescriptionQty
1 3218.0313 Brass Pump Manifold Ø151
1 3218.0314 Brass Pump Manifold Ø181
2 3609.0108 Screw M6x558
3 2409.0123 Check Valve Kit1
4 1210.0460 O-Ring Ø2,4x4,31
5 2409.0122 Check Valve1
6 1802.0197 Spring1
7 3410.0289 Injector Body Kit Ø1,8- M22X1,51
8 1210.0398 O-Ring1
9 1210.0402 O-Ring1
10 3202.0018 Cap G1/8”1
11 2811.0086 Washer Ø21,2x27x1,51
12 3202.0015 Plug G1/2”1
13 2811.0084 Washer Ø16,7x22x1,51
14 3200.0007 Plug G3/8”1
15 1210.0046 O-Ring Ø2,62x17,136
16 3009.0087 Suct./Del. Valve Seat6
17 3604.0017 Suct./Del. Valve6
18 1802.0177 Suct./Del. Valve Spring6
19 1205.0025 Suct./Del. Valve Cage6
20 1220.0030 Suct./Del. Valve Ass.y kit6
21 1210.0048 O-Ring Ø2,62x20,246
22 3202.0312 Cap + O-Ring6
23 3609.0088 Screw M5x103
24 1004.0012 Crankcase Flange1
25 0402.0360 Cover1
26 1210.0386 O-Ring Ø3,53x44,041
27 3019.0011 Outer Seeger1
28 0438.0066 Ball Bearing Ø20x52x151
29 0403.0128 Pump Crankcase1
30 3200.0051 Oil Dipstick1
31 0600.0048 Special Bolt3
32 2811.0080 Washer Ø8,2x14x1,53
33 0202.0020 Ceramic Bushing Ø153
33 0202.0018 Ceramic Bushing Ø183
34 2812.0038 Washer3
35 1210.0055 O-Ring Ø1,78x6,073
36 2409.0044 Piston Guides3
37 3011.0014 Gudgeon Pin3
38 0205.0048 Con. Rod Assembly3
39 3019.0033 Outer Seeger Ø281
40 3201.0026 Oil Indicator1
41 1210.0451 O-Ring Ø2x241
42 1210.0621 O-Ring Ø3x941
43 3609.0041 Screw M6x254
44 0402.0142 Crankcase Cover1
45 1210.0441 O-Ring Ø2x141
46 3200.0007 Plug G3/8”1
47 0019.0095 Oil Seal Ø15x24x53
48 1210.0223 O-Ring Ø1,78x26,73
49 0009.0198 Packing Retainer Ø153
49 0009.0197 Packing Retainer Ø183
50 1241.0030 Packing Ø153
50 1241.0028 Packing Ø183
51 1241.0065 Packing Ø153
51 1241.0022 Packing Ø183
52 0009.0196 Packing Head Ring Ø152020
53 1215.0585 Reg. Valve Kit + Seat 180 26101
54 1817.0054 Pressure knob1
55 3301.0543 Detergent Knob Kit1
56 3003.0024 Ball 7/32”1
57 1802.0180 Spring1
58 3200.0017 Plug G1/8”x81
60 0001.0290 Throughshaft Ø241
61 1602.0045 Key 8x7x251
62 0438.0075 Ball Bearing Ø25x62x171
63 3020.0012 Inner Seeger1
64 3019.0006 Outer Seeger1
65 0019.0094 Oil Seal Ø25x62x10/71
70 0001.0342 Hollow Shaft Ø241
71 0438.0015 Ball Bearing Ø35x62x141
72 2812.0064 Spacer1
73 3020.0012 Inner Seeger Ø621
74 3019.0004 Outer Seeger Ø351
75 0019.0075 Oil Seal Ø35x62x71
76 3607.0015 Hexagonal Screw M8x204
77 3016.0014 Flange MEC1
78 3609.0032 Screw M6x204

Motor

A 4-pole motor of at least 3 kW drives this pump at 1450 rpm. Single-phase motors are listed last, for a 230 V supply.

MotorkWrpmFrameClassA at 400 VSuppliers
RNE 100b4 31440IEC 100IE36.8  
RN 100b4 31420IEC 100IE16.4  
RNM 100c4 31410IEC 100Single-phase17 at 230 V  
RNM 112c4 31415IEC 112Single-phase18.5 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 100, 28 mm shaft (RNE 100b4, RN 100b4, RNM 100c4) No Comet flange listed for this motor.
  • IEC 112, 28 mm shaft (RNM 112c4) 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.

Other Comet LW-K pumps

LW-K 2020 ELW-K 3525 S