InterpumpPumps & Compressors

Interpump PUMP W3523 L W/O RAILS

The Interpump W3523 is a 20 hp industrial pump delivering 23 L/min at 350 bar, designed for high-pressure applications requiring robust performance. Operating at 1450 rpm, it suits demanding hydraulic systems and…

SKU 3G-ITP-01735

Also listed as: W03523S100 · W03523S 100

Brand

Interpump

Item

PUMP W3523 L W/O RAILS

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Delivery: Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to: Singapore

Technical Specifications

Interpump

Flow Rate

23 L/min

Pressure

350 bar

Power

14.7 kW

Speed

1450 RPM

Weight

19.5 kg

Dimensions

351.5 mm

Power

20 HP

Flow (US)

6.07 GPM

Pressure

35 MPa

Pressure

5075 PSI

Datasheet Content

TS1044




TECHNICAL INFORMATION
Flow (L/min)                        44
Flow (US Gpm)                       11,62
Rotation regime (rpm)               1750
Pressure (MPa)                      10
Pressure (bar)                      100
Pressure (psi)                      1450
Power (hp)                          11.4
Power (kW)                          8,38
Overall dimensions L x l x h (mm)   321x234x176
Weight (kg)                         15




TS1044                                            3/21/2026   Page 1 - 8
Copyright INTERPUMP GROUP S.P.A
TS1044

     Documents

Male shaft (key)

Male shaft (key) - vers. ATEX




TS1044                            3/21/2026   Page 2 - 8
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key)




TS1044                            3/21/2026   Page 3 - 8
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key)

Pos.     Code           Description                   Qty Notes
KIT6     34000601       KIT 6 PISTON BOLT             1
KIT3     34000301       KIT 3 OIL SEAL D.30X55X7      1
KIT248   34024801       KIT 248 PACKING D.28          1
KIT247   34024701       KIT 247 CPL. SEAL D.28        1
KIT2     34000201       KIT 2 OIL SEAL D. 22X32X5,5   1

KIT169   34016901       KIT 169 INTAKE/DEL.VALVE (66) 1


54       96738000       WASHER 17,5X23X1,5            1
53       98210000       PLUG G3/8X13                  1
52       96770000       WASHER 26,5X32X1,5            1
51       98226800       PLUG G3/4X16                  1
50       66101651       HEAD RING D.28 H.P.           3
49       90275380       PACKING D.28X36X6/3.7 H.P.    3


48       90517200       ANTI-EXTRUSION RING           3
                        D.28X38X2
47       66220070       INTERMEDIATE RING D.28        3
46       90275300       PACKING D.28X36X6.5 L.P.      3
45       66082570       PACKING RETAINER D.28         3
44       90362000       O-RING D.37.82X1.78 (2150)    3


43       99364400       SCREW M 10x18-5931            4
42       96710600       WASHER 10,2                   4
41       47200074       PUMP FOOT                     2
40       90164800       OIL SEAL 30x55x7              1
40       97567800       SHIM D.74,5X104X0,1           1
39       97568000       SHIM D.74.5X104X0.3           1
38       47151022       OPEN SIDE COVER (47-66)       1
37       47219566       PISTON SCREW                  3
36       96728000       WASHER 14X18,5X0,5            3
35       90506700       ANTI-EXTRUSION RING           3
34       47040909       PISTONE D.28x50               3
33       96728600       WASHER 14X28X0,5              3
32       47225570       SPACER D.14X20.5X2.5          3
31       90055700       CIRCLIP D.12 UNI 7435         6
30       97738000       CONNECTING-ROD PIN            3
                        D.13X35,5
29       47221301       OIL SIGHT GLASS ASSY G3/4     1


28       98204250       PLUG G1/4"x12                 1
27       90358500       O-RING 10,82X1,78 (2043)      4
26       99188400       SCREW M 6x20 UNI 5931         5
25       47160622       CRANKCASE COVER               1




TS1044                                                            3/21/2026   Page 4 - 8
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key)

Pos.   Code             Description                   Qty Notes

24     99309900         SCREW M 8x35 UNI 5931         6
23     47030001         CONNECTING ROD                3
22     47050466         PISTON GUIDE - S.S.           3
21     91489200         KEY 8(h9)X7X35 UNI 6604/A     1


20     47022135         SHAFT C.14 SEMP. PdF USA      1
19     90392200         O-RING D.133.02X 2,62(3525)   1


18     47010822         CRANKCASE                     1
17     98210600         OIL DIP-STICK G3/8X80         1
16     90912600         BUSHING 22X25X30              3
15     90162500         OIL SEAL 22x32x5              3
14     91837500         TAPER BEARING                 2
13     90391300         O-RING 67,95X2,62 (3268)      2
12     47151122         CLOSED SIDE COVER (47-66)     1


11     99303900         SCREW M 8x16 UNI 5931         8
10     36712701         INTAKE/DEL.VALVE ASSY(66)     6


9      98230000         PLUG M32X1,5X17,5             6
8      90386400         O-RING D.28.25x2.62 90sh(3112) 6


7      36203551         VALVE CAGE                    6
6      94738800         SPRING Dm. 10x18.5            6
5      36203476         SPHERICAL VALVE               6
4      36203366         VALVE SEAT                    6
3      90385700         O-RING 23,81X2,62 (132)       6
2      99322000         SCREW M8X75 UNI5931 12.9      8
1      47123341         TESTATA POMPA D.28            1




TS1044                                                            3/21/2026   Page 5 - 8
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key) - vers. ATEX




TS1044                                       3/21/2026   Page 6 - 8
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key) - vers. ATEX

Pos.     Code           Description                   Qty Notes
KIT6     34000601       KIT 6 PISTON BOLT             1
KIT3     34000301       KIT 3 OIL SEAL D.30X55X7      1
KIT248   34024801       KIT 248 PACKING D.28          1
KIT247   34024701       KIT 247 CPL. SEAL D.28        1
KIT2     34000201       KIT 2 OIL SEAL D. 22X32X5,5   1

KIT169   34016901       KIT 169 INTAKE/DEL.VALVE (66) 1


60       99180900       SCREW M06X10 5931 A2-70       1
59       96693950       WASHER 6.4x11.0x0.7 D6798A    1
                        INOX
57       90387700       O-RING 39,34X2,62 (3156)      1
56       70211751                                     1
55       90075500       STOP RING J45 UNI7437         1
54       96738000       WASHER 17,5X23X1,5            1
53       98210000       PLUG G3/8X13                  1
52       96770000       WASHER 26,5X32X1,5            1
51       98226800       PLUG G3/4X16                  1
50       66101651       HEAD RING D.28 H.P.           3
49       90275380       PACKING D.28X36X6/3.7 H.P.    3


48       90517200       ANTI-EXTRUSION RING           3
                        D.28X38X2
47       66220070       INTERMEDIATE RING D.28        3
46       90275300       PACKING D.28X36X6.5 L.P.      3
45       66082570       PACKING RETAINER D.28         3
44       90362000       O-RING D.37.82X1.78 (2150)    3


43       99364400       SCREW M 10x18-5931            4
42       96710600       WASHER 10,2                   4
41       47200074       PUMP FOOT                     2
40       90164800       OIL SEAL 30x55x7              1
40       97567800       SHIM D.74,5X104X0,1           1
39       97568000       SHIM D.74.5X104X0.3           1
38       47151022       OPEN SIDE COVER (47-66)       1
37       47219566       PISTON SCREW                  3
36       96728000       WASHER 14X18,5X0,5            3
35       90506700       ANTI-EXTRUSION RING           3
34       47040909       PISTONE D.28x50               3
33       96728600       WASHER 14X28X0,5              3
32       47225570       SPACER D.14X20.5X2.5          3
31       90055700       CIRCLIP D.12 UNI 7435         6
30       97738000       CONNECTING-ROD PIN            3
                        D.13X35,5




TS1044                                                            3/21/2026   Page 7 - 8
Copyright INTERPUMP GROUP S.P.A
Illustration Male shaft (key) - vers. ATEX

Pos.   Code             Description                   Qty Notes

29     98226600         PLUG G3/4X16 S.S.             1
28     98203600         PLUG G1/4x8 FOR PROBE D.6     1
                        S.S.
27     90358500         O-RING 10,82X1,78 (2043)      4
26     99188400         SCREW M 6x20 UNI 5931         5
25     47160622         CRANKCASE COVER               1
24     99309900         SCREW M 8x35 UNI 5931         6
23     47030001         CONNECTING ROD                3
22     47050466         PISTON GUIDE - S.S.           3
21     91489200         KEY 8(h9)X7X35 UNI 6604/A     1


20     47022135         SHAFT C.14 SEMP. PdF USA      1
19     90392200         O-RING D.133.02X 2,62(3525)   1


18     47010822         CRANKCASE                     1
17     98210700         OIL DIPSTICK G3/8X64          1
                        D4+FILTER ATEX
16     90912600         BUSHING 22X25X30              3
15     90162500         OIL SEAL 22x32x5              3
14     91837500         TAPER BEARING                 2
13     90391300         O-RING 67,95X2,62 (3268)      2
12     47151322         SIDE CRANKCASE COVER (ATEX) 1


11     99303900         SCREW M 8x16 UNI 5931         8
10     36712701         INTAKE/DEL.VALVE ASSY(66)     6


9      98230000         PLUG M32X1,5X17,5             6
8      90386400         O-RING D.28.25x2.62 90sh(3112) 6


7      36203551         VALVE CAGE                    6
6      94738800         SPRING Dm. 10x18.5            6
5      36203476         SPHERICAL VALVE               6
4      36203366         VALVE SEAT                    6
3      90385700         O-RING 23,81X2,62 (132)       6
2      99322000         SCREW M8X75 UNI5931 12.9      8
1      47123341         TESTATA POMPA D.28            1




TS1044                                                            3/21/2026   Page 8 - 8
Copyright INTERPUMP GROUP S.P.A

Technical Documents

(1)

Technical Data Sheet

PDF Document

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Interpump Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the Interpump W3523 pump used for?

The Interpump W3523 is a 20 hp industrial pump used for high-pressure applications such as hydraulic systems and heavy-duty industrial processes. It delivers 23 L/min at 350 bar and operates at 1450 rpm, making it suitable for demanding environments requiring robust performance.

What are the specifications of the Interpump W3523 pump?

The Interpump W3523 pump has a power rating of 20 hp (14.7 kW), flow rate of 23 L/min (6.07 US GPM), maximum pressure of 350 bar (35 MPa, 5075 psi), and a rotation regime of 1450 rpm. It weighs 19.5 kg and has overall dimensions of 351.5 mm in length.

Where to buy the Interpump W3523 pump in Singapore?

You can order the Interpump W3523 pump from 3G Electric in Singapore. We source and deliver this industrial pump, handling all logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Interpump W3523 pump?

Install the Interpump W3523 pump on a stable, level surface using the pump foot and mounting screws. Ensure the male shaft (key) aligns correctly with the drive coupling. Use the provided oil seal kits and packing rings as per the manufacturer's datasheet. Always follow Interpump's installation guidelines for safe operation.

Used in

Common applications for Interpump

Shipyard hull cleaning and surface prep — HT100 and W951 paired with dual-lance guns for dockyard service

Petrochemical heat-exchanger descaling — WS-series stainless pumps for neutral-pH cleaning chemistry

Outdoor HVAC condenser mist cooling — ZP180 pumps on rooftop chiller decks

Textile fibre-finishing — W170 and W270 for mist-jet application across drying lines

Municipal water treatment — W951 motor pumps for high-pressure disinfection chemical injection

Spare Parts & Repair Kits

Official W3523 parts list — 108 parts, 54 available in catalog

Official Parts List

W3523 — Male shaft (key) exploded diagram

Repair Kits — Order These for Routine Maintenance

KIT2

KIT 2 OIL SEAL D. 22X32X5,5

34000201×1Available

Interpump PUMP W3523 L W/O RAILS

Local availability & support — Singapore

Technical Specifications

Datasheet Content

Technical Documents

Need installation or engineering help?

Ask a question

Product Description

Frequently Asked Questions

Used in

Spare Parts & Repair Kits

Interpump Products

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