Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Interpump PUMP WK531 DX VERS. "NPT" - Pumps & Compressors
InterpumpPumps & Compressors

Interpump PUMP WK531 DX VERS. "NPT"

Interpump WK531 DX is an industrial pump for high-pressure hydraulic applications, delivering 30 L/min at 500 bar with 28.7 kW power input. Operating at 1450 rpm, it suits demanding systems requiring compact…

SKU 3G-ITP-01814

Also listed as: WK0531200 · WK0531 200

Brand
Interpump
Item
PUMP WK531 DX VERS. "NPT"
Part Number
WK0531-200
Category
Pumps & Compressors
UNSPSC
40151527 — Plunger pumps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Authorized Distributor
Direct from OEM
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
30 L/min
Pressure
500 bar
Power
28.7 kW
Speed
1450 RPM
Weight
39 kg
Dimensions
395 mm
Manufacturer Part Number
WK531
Power
39 HP
Flow (US)
7.9 GPM
Pressure
50 MPa
Pressure
7250 PSI

Technical Documents

(1)
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Interpump Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Interpump WK531 DX is an industrial pump for high-pressure hydraulic applications, delivering 30 L/min at 500 bar with 28.7 kW power input. Operating at 1450 rpm, it suits demanding systems requiring compact, reliable pressure delivery.

Frequently Asked Questions

What is the Interpump WK531 DX NPT pump used for?

The Interpump WK531 DX NPT is an industrial pump designed for high-pressure hydraulic applications. It delivers 30 L/min at 500 bar, making it suitable for demanding systems that require compact and reliable pressure delivery, such as in industrial cleaning, water jetting, and hydraulic power units.

What are the specifications of the Interpump WK531 DX NPT pump?

The Interpump WK531 DX NPT pump has a flow rate of 30 L/min (7.9 US GPM), a maximum pressure of 500 bar (50 MPa, 7250 psi), and requires 28.7 kW (39 hp) power input. It operates at 1450 rpm, weighs 39 kg, and has overall dimensions of 395 x 340.5 x 258 mm.

Where to buy the Interpump WK531 DX NPT pump in Singapore?

You can source the Interpump WK531 DX NPT pump through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this industrial pump.

How to install the Interpump WK531 DX NPT pump?

Install the Interpump WK531 DX NPT pump on a rigid, level base using the lifting bracket (part 77). Ensure the male shaft (key) NPT coupling aligns correctly with the drive. Use proper hydraulic fittings and torque all bolts to manufacturer specifications. 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 WK531 parts list320 parts, 51 available in catalog

Official Parts List
WK531 — Male shaft (key) - GAS exploded diagram

Repair Kits — Order These for Routine Maintenance

KIT2156
KIT 2156*CONROD BUSHING
34215601×1Available
View
KIT2157
KIT 2157*CONROD BUSHINGS +0,25
34215701×1Available
View
KIT2158
KIT 2158*CONROD BUSHINGS +0,50
34215801×1Available
View

Individual Components

PosCodeDescriptionQty
1
CRANKCASE WK531
70010022×1Available
View
2
TAPER ROLLER BEARING 33207/Q
91847700×2Available
3
O-RING D. 80.6X2.62 (3318)
90391500×2Available
View
4
SHIM 0.25 MM.
70220381×1Available
View
4
SHIM 0.1 MM.
70220081×1Available
View
5
CIRCLIP D.45 (ZJ45)
90075600×1Available
View
6
OIL SIGHT GLASS
70211801×1Available
View
7
O-RING 39,34X2,62 (3156)
90387700×1Available
View
8
BEARING COVER (OIL GLASS SIDE)
70150122×1Available
View
9
SCREW M6X16 UNI 5931 8.8 Z.
99185400×20Available
View
10
O-RING 13,95X2,62 (3056)
90383300×1Available
View
11
PLUG G3/8x13 TE22
98210050×1Available
View
12
OIL DIPSTICK D.21,5X70
98211500×1Available
View
13
DIP STICK TUBE
72210695×1Available
View
14
O-RING 25,12X1,78 (2100)
90360400×1Available
View
15
CRANKCASE COVER KT
70160622×1Available
View
16
View
17
PLUG D. 15
98200500×5Available
View
18
CONN.ROD BOLT M8X1X42
99312300×6Available
View
19
CRANKSHAFT C.26
70020635×1Available
View

Need multiple parts? Request a bundled quote

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

Request Bundle Quote
Genuine manufacturer parts Expert technical support Worldwide shipping

Official WK531 parts listIndustrial Pumps (Series 64 E4)

Not sure this is the right part? Photo-identify it

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
PUMP WK8 R NPT VERSION
Interpump
PUMP WK8 R NPT VERSION
PUMP WK15 R NPT VERSION
Interpump
PUMP WK15 R NPT VERSION
PUMP WK6015 DX
Interpump
PUMP WK6015 DX
PUMP WK531 DX ATEX
Interpump
PUMP WK531 DX ATEX
PUMP WW967C DX
Interpump
PUMP WW967C DX

More from Interpump

View all Interpump parts
PUMP E2B2008 R FL.B3B14 VALVE R
Interpump
PUMP E2B2008 R FL.B3B14 VALVE R
PUMP SSU1521
Interpump
PUMP SSU1521
PUMP C3W2015 SX VERS. HT
Interpump
PUMP C3W2015 SX VERS. HT
PUMP WW186 L VALVE
Interpump
PUMP WW186 L VALVE
PUMP WW906 L+FL. 56C BRASS VALVE
Interpump
PUMP WW906 L+FL. 56C BRASS VALVE
PUMP W905 R BR+FL56C+VAL -CHIM
Interpump
PUMP W905 R BR+FL56C+VAL -CHIM
PUMP W905 L BRASS+FLANGE 56C
Interpump
PUMP W905 L BRASS+FLANGE 56C
PUMP WW56 R+FLANGE B3B14
Interpump
PUMP WW56 R+FLANGE B3B14

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first