We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
HANSEN B3K21 HK Series Hydraulic Quick-Connect Coupling Plug - HK Series Hydraulic Quick-Connect Coupling Plugs
HANSENHK Series Hydraulic Quick-Connect Coupling Plugs

HANSEN B3K21 HK Series Hydraulic Quick-Connect Coupling Plug

The HANSEN HK Series Hydraulic Quick-Connect Coupling Plug (MPN B3K21) is a brass-bodied hydraulic quick-connect hose coupling with a 3/8 in coupling size and 3/8"-18 thread size. It has a maximum flow rate of 22.71 lpm.

SKU 3G-OTH-450748

Brand
HANSEN
Item
B3K21 HK Series Hydraulic Quick-Connect Coupling Plug
Part Number
B3K21
Category
HK Series Hydraulic Quick-Connect Coupling Plugs
Available to Order
Also known as:B3K21HANSEN
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

HANSEN
Manufacturer Part Number
B3K21
Type
Brass, 22.71 lpm Max. Flow Rate
Thread Size
3/8"-18
Body Material
Brass

Technical Documents

No technical documents available for this product.
Request documentation
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

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

Product Description

The HANSEN HK Series Hydraulic Quick-Connect Coupling Plug (MPN B3K21) is a brass-bodied hydraulic quick-connect hose coupling with a 3/8 in coupling size and 3/8"-18 thread size. It has a maximum flow rate of 22.71 lpm.

Frequently Asked Questions

What is the HANSEN HK Series hydraulic quick-connect coupling used for?

The HANSEN HK Series hydraulic quick-connect coupling plug (MPN B3K21) is used in hydraulic systems to rapidly connect and disconnect hose lines without tools. Common applications include industrial machinery, agricultural equipment, and mobile hydraulics where frequent line changes are needed.

What are the specifications of the HANSEN B3K21 coupling?

The HANSEN B3K21 is a brass-bodied hydraulic quick-connect coupling plug from the HK Series. It has a 3/8 in coupling size, 3/8"-18 thread size, and a maximum flow rate of 22.71 lpm. The body material is brass, and the manufacturer part number is B3K21.

Where to buy HANSEN hydraulic couplings worldwide?

3G Electric supplies HANSEN hydraulic quick-connect couplings worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the HANSEN B3K21 or other HK Series couplings for your hydraulic system needs.

How to select the right HANSEN quick-connect coupling for my system?

To select the correct HANSEN quick-connect coupling, match the coupling size and thread size to your hose or port. For the B3K21, use a 3/8 in coupling with 3/8"-18 threads. Verify the maximum flow rate of 22.71 lpm meets your system requirements. Always confirm pressure ratings from the manufacturer.

Used in

Common applications for HANSEN
Hydraulic systems — HANSEN FF Series push-to-connect couplings for quick line changes in manufacturing equipment
Medical gas delivery — HANSEN oxygen quick-disconnect plugs with hose barb connections for hospital gas outlets
Pneumatic tool lines — HANSEN sleeve-lock couplings for air tools in assembly plants
Oil and gas transfer — HANSEN steel-bodied couplings for high-flow hydraulic circuits in drilling rigs
Tool organization — HANSEN socket trays and wrench racks for maintenance shop storage
Not sure this is the right part? Photo-identify it

HANSEN Products

3G Electric supplies HANSEN hk series hydraulic quick-connect coupling plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from HANSEN

View all HANSEN parts
The HANSEN LL2K16 is a 1/4 in coupling-size hydraulic quick-connect plug from the HK Series. It features a 1/4"-18 FNPT thread and is constructed from 303 Stainless Steel. Designed for quick, leak-free connection and disconnection in hydraulic systems, it is commonly used in industrial machinery, mobile equipment, and hydraulic tools
HANSEN
The HANSEN LL2K16 is a 1/4 in coupling-size hydraulic quick-connect plug from the HK Series. It features a 1/4"-18 FNPT thread and is constructed from 303 Stainless Steel. Designed for quick, leak-free connection and disconnection in hydraulic systems, it is commonly used in industrial machinery, mobile equipment, and hydraulic tools

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first