EDGE #8 Laminar Flow Pyrex TIG Cup (Select Tungsten Size From Options Above)

Clear Pyrex TIG cup with engineered laminar gas flow for improved shielding coverage, visibility, and tungsten stick-out.
The Genuine EDGE Laminar Flow (LF) Series #8 TIG Cup uses integrated diffuser technology to create smooth, consistent shielding gas flow at the cup. The controlled gas pattern helps provide dependable coverage around the tungsten and weld area while the clear Pyrex construction gives the welder excellent visibility of the puddle.

This Arc-Zone listing is specifically for the #8 Pyrex Laminar Flow TIG Cup and is available with a diffuser for either 1/16" (1.6mm) or 3/32" (2.4mm) tungsten.

Available Options

Select the tungsten / diffuser size required for your TIG torch setup from the options above.

Key Features

• #8 Cup Size: This listing is specifically for the EDGE #8 Laminar Flow TIG Cup.
• Laminar Flow Technology: Integrated diffuser technology helps create smooth, consistent shielding gas coverage.
• Clear Pyrex Construction: Provides improved visibility of the tungsten, weld puddle, and surrounding joint.
• Greater Tungsten Stick-Out: Engineered gas coverage helps maintain shielding when additional tungsten extension is required.
• Cleaner Welds: Stable shielding gas flow helps reduce contamination and support consistent weld quality.
• Two Tungsten Sizes: Choose between 1/16" (1.6mm) and 3/32" (2.4mm) diffuser configurations.
• Precision Fit: Designed for consistent fit with compatible EDGE TIG torch components.
• Heat-Treated: Pyrex cup is heat-treated for improved durability.
• Made in the USA: EDGE Laminar Flow cups are handmade in the USA.

Why Laminar Flow?

Shielding gas can become turbulent as it exits a TIG torch cup, particularly when using higher gas flow or additional tungsten stick-out. The EDGE Laminar Flow design uses an integrated diffuser to help smooth and stabilize the shielding gas before it exits the cup.

This controlled flow helps maintain more consistent shielding around the tungsten and weld area, supporting cleaner and more repeatable TIG welding results.

Clear Pyrex for Better Visibility

The clear borosilicate glass construction provides an open view of the tungsten and weld puddle. This can be especially helpful when working around joints where torch position, tungsten placement, and puddle control are important.

EDGE manufactures its Pyrex cups from laboratory-grade borosilicate glass and heat-treats them for durability.

Torch Compatibility

EDGE identifies the Laminar Flow Series for use with the following TIG torch families when installed with the appropriate EDGE adapter and O-rings:

• WP-9 Series
• WP-20 Series
• WP-25 Series
• WP-17 Series
• WP-18 Series
• WP-26 Series

Important: EDGE Pyrex replacement cups must be used with the appropriate EDGE adapter and O-rings. Make sure the adapter and cup are fully seated on the Teflon heat shield before welding.

Recommended Applications

• Stainless steel
• Titanium
• Inconel
• Nickel-based alloys
• General DC TIG welding
• Applications requiring improved puddle visibility
• Applications requiring additional tungsten stick-out
• Precision TIG welding

Choosing the Correct Tungsten / Diffuser Size

Important Use & Care Information

• Make sure the EDGE adapter and cup are fully seated on the Teflon heat shield before welding.
• Use the diffuser size that matches your tungsten electrode diameter.
• Follow the appropriate diffuser amperage limits for your welding setup.
• Extended tungsten stick-out should be used in controlled conditions where proper shielding coverage can be maintained.
• Do not walk the cup. EDGE recommends avoiding cup walking with Pyrex glass to help prevent premature wear or damage.

Frequently Asked Questions

What cup size is this?
This Arc-Zone listing is specifically for the EDGE #8 Laminar Flow Pyrex TIG Cup.

What tungsten sizes are available?
Choose between 1/16" (1.6mm) and 3/32" (2.4mm) tungsten / diffuser configurations.

What are the Arc-Zone SKUs?
The 1/16" configuration is EWS-GL-P8D116LF, and the 3/32" configuration is EWS-GL-P8D332LF.

What does Laminar Flow do?
The integrated diffuser helps smooth and stabilize shielding gas as it exits the cup, providing more consistent gas coverage around the tungsten and weld area.

Why use a clear Pyrex TIG cup?
The clear cup provides improved visibility of the tungsten and weld puddle, helping the welder monitor torch position and puddle control.

Can I use additional tungsten stick-out?
The Laminar Flow design is engineered to help maintain shielding coverage with greater tungsten extension. Extended stick-out should still be used in controlled conditions where adequate shielding can be maintained.

What TIG torches are compatible?
EDGE lists compatibility with WP-9, WP-20, WP-25, WP-17, WP-18, and WP-26 Series TIG torches when used with the appropriate EDGE adapter and O-rings.

Does this cup require an EDGE adapter?
Yes. EDGE specifies that its replacement Pyrex cups must be used with the appropriate EDGE adapter and O-rings.

Can I walk the cup?
EDGE recommends not walking the cup with Pyrex glass because doing so can cause premature wear or damage.

Where is the cup made?
EDGE Laminar Flow TIG cups are handmade in the USA.