Description
Detailed Technical Specifications & Compatibility
Choosing a short back cap is the standard solution for “walk-the-cup” techniques in tight pipe welds or internal box fabrication where torch clearance is limited.
| Feature | Technical Detail |
| Compatible Torches | WP-17 (Air Cooled), WP-18 (Water Cooled), WP-26 (Air Cooled) |
| Material | High-temp Phenolic Resin with Brass Threaded Core |
| Seal Type | Integrated Red Silicone O-Ring |
| Equivalent Part | Standard 57Y04 Series replacement |
| Required Electrode | Must be used with 2-inch or “stubby” cut tungsten electrodes |
| Thread Size | Standard 57Y series torch threading |
Additional Technical Information:
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Application Advantage: Ideal for automotive roll cages, pipe headers, and intricate artistic metalwork.
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Tungsten Requirement: Because of its short depth, standard $7″$ electrodes must be cut down to approximately $2″$ to fit inside the cap.
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Thermal Performance: The brass insert provides excellent heat dissipation to protect the internal torch threads during heavy duty cycles.
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Maintenance: Ensure the O-ring is free of cracks and the brass threads are clean to maintain a perfect atmospheric seal.
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