Gas Valve Knob & Stem Assembly for TIG Torches

Replacement gas valve knob and stem assembly for compatible Miller Weldcraft TIG torches.
The Miller Weldcraft VS-2 Gas Valve Knob and Stem Assembly is designed to provide manual shielding gas control on compatible valve-equipped TIG torches. Whether your existing gas valve is worn, leaking, damaged, or difficult to turn, the VS-2 provides replacement components to help restore proper manual gas valve operation.

The assembly includes a knurled gas control knob, threaded valve stem, and sealing O-ring. These components work together to allow the operator to manually open and close shielding gas flow directly at the TIG torch.

The VS-2 is commonly used with compatible WP-9V, WP-17V, WP-24FV, and other valve-equipped 9, 17, and 20 Series TIG torches. It is especially useful for TIG welding setups that do not have a built-in gas solenoid.

Key Features

• Genuine Miller Weldcraft Replacement: Replacement gas valve knob and stem assembly for compatible Weldcraft TIG torches.
• Manual Gas Flow Control: Allows the operator to turn shielding gas on and off directly at the torch.
• Knurled Control Knob: Textured knob provides a convenient grip for manual gas adjustment.
• Threaded Valve Stem: Replacement component for the torch's manual gas valve mechanism.
• Sealing O-Ring: Includes an O-ring to help maintain a proper seal within the gas valve assembly.
• Multiple Torch Applications: Compatible with specified valve-equipped TIG torch configurations.
• Replacement for Worn Valves: Useful when repairing worn, damaged, leaking, or difficult-to-operate gas valve assemblies.
• Ideal for Manual Gas Control: Commonly used with TIG welding power sources that do not feature an automatic shielding gas solenoid.

What's Included?

Package Contents: One VS-2 replacement gas valve knob and stem assembly with O-ring. Complete TIG torch not included.

Compatible TIG Torches

The VS-2 is designed for compatible Miller Weldcraft TIG torch gas valve assemblies, including the following valve-equipped configurations:

Important Compatibility Note: The VS-2 is intended for compatible manual gas valve assemblies. Standard TIG torch models without a manual gas valve do not require this component. Always verify the original valve part number and torch configuration before ordering.

Manual Shielding Gas Control

Some TIG welding power sources do not have a built-in gas solenoid to automatically start and stop shielding gas flow. A valve-equipped TIG torch allows the welder to manually control gas flow directly at the torch.

The VS-2 Gas Valve Knob and Stem Assembly provides the replacement components for operating the compatible manual gas valve.

The operator can open the valve before welding to establish shielding gas coverage and close it after welding once the necessary post-flow protection is complete.

Restore Proper Gas Valve Operation

With regular use, a TIG torch's manual gas valve components may wear or become damaged. A worn valve stem, damaged knob, or deteriorated O-ring can make gas control difficult or cause leakage.

Common reasons for replacing the VS-2 include:

• Worn or damaged gas valve knobs
• Gas valve stems that are difficult to turn
• Damaged or worn valve stem threads
• Shielding gas leakage around the valve assembly
• Worn or damaged sealing O-rings
• Routine maintenance of valve-equipped TIG torches

Replacing worn components helps restore proper manual gas control. If leakage continues after replacement, inspect the torch valve body and other gas connections for additional damage.

Common Applications

• WP-9V TIG torch maintenance
• WP-17V TIG torch maintenance
• WP-24FV gas valve replacement
• Compatible A-125 and A-150 torch maintenance
• Repairing leaking manual gas valves
• Replacing worn valve knobs and stems
• Scratch-start TIG welding setups
• Lift-Arc TIG welding setups
• Field welding equipment maintenance
• TIG welding systems without automatic shielding gas control

Frequently Asked Questions

What is the Miller Weldcraft VS-2?
The VS-2 is a replacement gas valve knob and stem assembly used to manually control shielding gas on compatible Miller Weldcraft TIG torches.

What TIG torches does the VS-2 fit?
The VS-2 is used with compatible valve-equipped TIG torches, including WP-9V, WP-17V, WP-24FV, and specified 20 Series configurations. Verify the original part number before ordering.

What comes with the VS-2 assembly?
The assembly includes a knurled valve knob, threaded valve stem, and sealing O-ring.

What does the gas valve do?
The valve allows the operator to manually open and close shielding gas flow directly at the TIG torch.

Why would I need a manual gas valve?
Manual gas valves are useful for TIG welding machines that do not feature an internal gas solenoid or automatic shielding gas control.

Does the VS-2 include an O-ring?
Yes. The VS-2 includes a sealing O-ring to help maintain proper sealing around the gas valve assembly.

Can the VS-2 help repair a leaking TIG torch valve?
Yes. If the leakage is caused by worn valve stem or sealing components, replacing the VS-2 may restore proper operation. Inspect the valve body for additional damage before installing the replacement.

Is the VS-2 compatible with standard WP-17 torches?
The VS-2 is intended for compatible manual gas valve assemblies. A standard WP-17 torch without a gas valve does not require this component.

Can the VS-2 be used with water-cooled TIG torches?
The VS-2 is also listed for certain compatible water-cooled TIG torch configurations. Confirm the model and valve assembly before ordering.

What is the difference between the VS-1 and VS-2?
Both are replacement gas valve knob and stem assemblies, but they are specified for different torch valve configurations. The VS-2 is commonly used with compatible 9, 17, and 20 Series torch assemblies, while the VS-1 is commonly used with compatible 18 and 26 Series valve assemblies. Always match the original replacement part number.

Is the complete TIG torch included?
No. This listing includes the VS-2 replacement gas valve knob and stem assembly with O-ring only.

What is the replacement part number?
The Miller Weldcraft replacement part number is VS-2.