Single Shut-Off TIG Gas Quick-Disconnect Coupler (Small Pin)

Quickly disconnect your TIG gas hose while helping reduce shielding gas loss.
The QRG Single Shut-Off TIG Gas Quick-Disconnect Coupler provides a fast and convenient way to connect and disconnect your TIG shielding gas hose from the welding machine. The internal shut-off valve automatically closes when the connection is separated, helping reduce gas loss from the machine side during torch changes and maintenance.

Designed for Weldcraft® QRG-style Small Pin systems, this quick-disconnect kit simplifies setup while maintaining a dependable shielding gas connection.

Why Welders Choose the QRG Gas Coupler

• Single Shut-Off Valve: Automatically closes when disconnected to help reduce shielding gas loss.
• Faster Torch Changes: Disconnect and reconnect gas hoses in seconds.
• Professional Connection: Converts threaded gas hose connections to a convenient quick-disconnect system.
• Easy Installation: Threaded connections install without modifying the welding machine.
• Compact Design: Adds convenience while maintaining excellent gas flow.

What's Included

• ZHCK-G Threaded Female Gas Hose Adapter to Male Gas Hose Plug (Small Pin)
• 5/8"-18 Right-Hand "B" Size Male Nut to Female Quick-Release Gas Hose Coupler

Compatibility

• Designed for Weldcraft® QRG-style Small Pin quick-disconnect systems
• Compatible with matching Small Pin male gas hose plugs
• For TIG shielding gas applications only

Important: This kit is designed specifically for Weldcraft® QRG Small Pin (0.195") quick-disconnect systems.

How It Works

1. Install the female quick-disconnect coupler onto the welding machine gas connection.
2. Install the matching Small Pin male gas plug onto the TIG gas hose.
3. Connect the plug to the coupler to begin normal shielding gas flow.
4. When disconnected, the internal shut-off valve automatically closes on the coupler to help minimize gas loss.

Ideal Applications

• TIG welding systems
• Torch replacement
• Gas hose upgrades
• Quick torch change systems
• Maintenance and repair
• General fabrication

Frequently Asked Questions

What does Single Shut-Off mean?
The female quick-disconnect coupler automatically closes when disconnected, helping reduce shielding gas loss from the welding machine side.

What pin size does this kit use?
This kit uses the Small Pin (0.195") Weldcraft® QRG quick-disconnect profile.

Can this be used for water hoses?
No. This quick-disconnect kit is designed specifically for TIG shielding gas applications.

Does this include both halves of the connection?
Yes. The kit includes the female quick-disconnect gas coupler and the matching Small Pin male gas hose plug.

Can I use this with other quick-disconnect brands?
This kit is intended for Weldcraft® QRG-style Small Pin systems. Always verify the quick-disconnect profile before ordering.

Does this completely eliminate gas loss?
The Single Shut-Off valve helps reduce shielding gas loss by automatically closing on the machine side when disconnected.