WK-274S Tube Expander

The WK-274S Tube Expander is a professional hand tool used to expand the ends of copper tubing for direct tube-to-tube connections in HVAC and refrigeration applications. It enables technicians to join pipes without additional fittings, helping reduce joints and minimize potential leak points in the system.

Engineered for smooth and controlled expansion, the WK-274S delivers uniform results while protecting the tubing wall from damage. Its sturdy construction ensures consistent performance during installation, maintenance, and repair work. With a wide working range, it supports common copper tube sizes used across refrigeration and air conditioning systems.

This tool is well suited for professionals who require dependable expansion performance for daily service and installation tasks.

Key Benefits

Allows direct copper tube connections without couplings
Creates smooth and uniform tube expansions
Helps reduce leak points in refrigeration systems
Wide size range supports multiple applications
Durable construction for professional use

Specifications

Product Type: Tube Expander
Model: WK-274S
Application: Refrigeration and HVAC copper tubing
Supported Tube Sizes: 1/8″ to 1-1/8″
Metric Range: 3 to 28 mm
Material Compatibility: Copper tubes

Applications

Refrigeration system installations
Air conditioning piping work
Copper tube expansion for HVAC systems
Maintenance and repair service work
Workshop and on-site professional use

FAQs

What tube sizes does the WK-274S support
It supports copper tubing from 1/8″ to 1-1/8″ and metric sizes from 3 mm to 28 mm

Is this tool suitable for refrigeration systems
Yes it is designed specifically for refrigeration and HVAC copper tubing applications

Does it reduce the need for fittings
Yes it allows direct tube-to-tube connections without additional couplings

Is the WK-274S easy to use
Yes it is designed for controlled manual operation and consistent results

Can it be used for professional work
Yes it is suitable for regular professional installation and service use