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Mains Units

LW plunger pump

LW 2520 S

Part number 6300 0900

  • 10Flow, l/min
  • 138Pressure, bar
  • 1450Speed, rpm
  • 2.7Power, kW

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

Comet LW pump

Specification

Flow
10 l/min
Pressure
138 bar
Speed
1450 rpm
Absorbed power
2.7 kW
Shaft
Solid, Ø24 mm
Weight
6.1 kg

Data sheet (PDF, Comet)

Kits

Plungers1

Part numberDescriptionPer pumpSuppliers
2409.0072Plunger kit1 

Water seals1

Part numberDescriptionPer pumpSuppliers
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 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 2811.0084 Washer Ø16,7x22x1,51
2 3200.0007 Plug G3/8”1
3 3202.0015 Plug G1/2”1
4 2811.0086 Washer Ø21,2x27x1,51
5 3218.0105 Alluminum Pump Ø18 Manifold1
5 3218.0318 Brass Pump Manifold Ø181
6 3609.0108 Screw M6x558
7 3202.0018 Cap G1/8”1
8 1220.0030 Suct./Del. Valve Ass.y kit6
9 1210.0046 O-Ring Ø2,62x17,136
10 3009.0087 Suct./Del. Valve Seat6
11 3604.0017 Suct./Del. Valve6
12 1802.0177 Suct./Del. Valve Spring6
13 1205.0025 Suct./Del. Valve Cage6
14 3202.0312 Cap + O-Ring6
15 1210.0048 O-Ring Ø2,62x20,246
16 3609.0088 Screw M5x103
17 1004.0012 Crankcase Flange1
18 0402.0360 Cover1
19 1210.0386 O-Ring Ø3,53x44,041
20 3019.0011 Outer Seeger1
21 0438.0066 Ball Bearing Ø20x52x151
22 0403.0128 Pump Crankcase1
22 0403.0540 Pump Crankcase (from serial 48330323)1
23 3200.0051 Oil Dipstick1
24 0600.0048 Special Bolt3
25 2811.0080 Washer Ø8,2x14x1,53
26 0202.0018 Ceramic Bushing Ø183
27 2812.0038 Washer3
28 1210.0055 O-Ring Ø1,78x6,073
29 2409.0044 Piston Guides3
30 3011.0014 Gudgeon Pin3
31 0205.0048 Con. Rod Assembly3
32 3019.0033 Outer Seeger Ø281
33 3201.0026 Oil Indicator1
34 1210.0451 O-Ring Ø2x23,521
35 1210.0621 O-Ring Ø3x941
36 0402.0142 Crankcase Cover1
37 3625.0062 Screw M6x204
38 1210.0157 O-Ring Ø2,62x13,952
39 3200.0007 Plug G3/8”1
40 0019.0095 Oil Seal Ø15x24x53
41 1210.0223 O-Ring Ø1,78x26,73
42 0009.0197 Packing Retainer Ø183
43 1241.0028 Packing Ø183
44 1241.0022 Packing Ø183
45 0009.0193 Packing Head Ring Ø183
50 0001.0333 Throughshaft Ø241
51 1602.0045 Key 8x7x251
52 0438.0075 Ball Bearing Ø25x62x171
53 3020.0012 Inner Seeger1
54 3019.0006 Outer Seeger1
55 0019.0094 Oil Seal Ø25x62x10/71
60 0001.0343 Hollow Shaft Ø241
61 0438.0015 Ball Bearing 35x62x141
62 2812.0064 Spacer1
63 3020.0012 Inner Seeger Ø621
64 3019.0004 Outer Seeger Ø351
65 0019.0075 Oil Seal Ø35x62x71
66 3607.0015 Hexagonal Screw M8x204
67 3016.0014 Flange MEC1
68 3609.0032 Screw M6x204

Motor

A 4-pole motor of at least 2.7 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 pumps

LW 0209 SLW 0409 GLW 0509 ELW 0509 GLW 0509 SLW 0522 ELW 1009 ELW 1009 GLW 1009 SLW 1022 ELW 1509 ELW 1509 GLW 1509 SLW 1522 ELW 1626 ELW 2020 SLW 2022 ELW 2516 ELW 2518 ELW 2520 ELW 3016 SLW 3020 ELW 3020 SLW 3025 SLW 3513 ELW 3513 ELW 3513 SLW 3517 SLW 3522 ELW 3525 S