Interpump PUMP WK5021 SX

Technical Documents

(1)
1 Technical Document Available
Sign in or create an account to download

Complete Solution

Need installation, maintenance, or a bundled quote?
Our engineers can help with product selection, system design, installation, and ongoing service — all from one partner.
InterpumpPumps & Compressors
Available

Interpump PUMP WK5021 SX

SKU 3G-ITP-01819

Brand
Interpump
Item
PUMP WK5021 SX
Category
Pumps & Compressors

Technical Specifications

Interpump
Flow Rate
21 L/min
Pressure
500 bar
Power
20.59 kW
Speed
1450 RPM
Weight
21.5 kg
Dimensions
350 mm
Power
28 HP
Flow (US)
5.55 GPM
Pressure
50 MPa
Pressure
7250 PSI
Sign in to view pricing
Create a free account to submit your RFQ and download technical documents.

Solutions Engineering

Need guidance on product selection or system design?
Contact Our Engineering Team
Interpump Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

POMPA WK5021 SX by Interpump is a robust industrial pump engineered for high-pressure applications requiring reliable performance. Delivering 20.59 kW of power with a maximum pressure rating of 500 bar (7,250 psi), this Italian-manufactured pump operates at 1,450 RPM and provides a flow rate of 21 liters per minute. Weighing 21.5 kg with compact dimensions of 350 mm, the WK5021 SX suits demanding industries including manufacturing, hydraulics, and pressure cleaning systems. Available from 3G Electric Singapore, this Interpump industrial pump combines durability with consistent output for mission-critical operations across Southeast Asia.

Spare Parts & Repair Kits

Official WK5021 parts list — 107 parts, 54 available in catalog

Official Parts List
Exploded Diagram — Male shaft (key)View full size
WK5021 — Male shaft (key)

Repair Kits — Order These for Routine Maintenance

KIT2
KIT 2 OIL SEAL D. 22X32X5,5
34000201×1Available
View
KIT3
KIT 3 OIL SEAL D.30X55X7
34000301×1Available
View
KIT150
KIT 150 INTAKE/DEL.VALVE
34015001×1Available
View
KIT176
KIT176 COMPLETE SEALS D.18
34017601×1Available
View
KIT180
KIT 180 SEALS D. 18
34018001×1Available
View

Individual Components

PosCodeDescriptionQty
3
PLUG G1/8X8 S.S.
98197200×3Available
View
7
O-RING 17,12X2,62 (3068)
90384100×6Available
View
8
VALVE SEAT
36200366×6Available
View
9
SPHERICAL VALVE
36203266×6Available
View
10
SPRING D. 9,4X14,8
94737600×6Available
View
11
VALVE CAGE
36202551×6Available
View
12
INTAKE/DELIVERY VALVE
36712101×6Available
View
13
O-RING 23,81X2,62 (132)
90385700×6Available
View
14
ANTI-EXTR.RING D.24.7x29x1.5
90516500×3Available
View
18
O-RING 17,86X2,62 (123)
90384300×3Available
View
19
ANTI-EXTRUSION RING
90511500×3Available
View
22
WASHER 21,5X27X1,5
96751400×1Available
View
23
PLUG G 1/2X10 NICKEL
98217900×1Available
View
24
PLUG G. 3/8X13 NICKEL
98209900×1Available
View
26
PISTON BOLT
66219566×3Available
View
28
PISTON D.18X54
66040309×3Available
View
29
PACKING 18.0x28x10.0 HP 66
90265500×3Available
View
30
INTERMEDIATE RING D. 18 WK5021
66216370×3Available
View
31
SEAL D.18X26X6,5 L.P.
90265200×3Available
View
32
O-RING 34,65X1,78 (2137)
90361600×3Available
View

Need multiple parts? Request a bundled quote

54 parts available in our catalog — get a single quote with volume pricing

Request Bundle Quote
Genuine manufacturer parts Expert technical support Worldwide shipping

Official WK5021 parts list — Industrial Pumps (Series 69)

Interpump Products

3G Electric supplies Interpump pumps & compressors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories Valves & Regulation Motors & Drives All Products

Need a complete solution?

Product selection, system design, installation, and ongoing maintenance — all from one partner.