Overview
The Praxair ProStar 41V35 (part number PRS41V35) is a genuine OEM medium-length back cap designed for TIG welding torches. This replacement consumable fits Series 9, 20, and 25 torch bodies and is compatible with both air-cooled and water-cooled configurations. Supplied as a pack of 3 units, the 41V35 is a drop-in replacement that extends torch life and maintains consistent arc performance across the 125A–250A amperage range.
Key Features
- Medium length back cap optimized for standard TIG torch applications
- Compatible with ProStar and equivalent Series 9, 20, and 25 torch bodies
- Supports both air-cooled and water-cooled TIG torches
- Rated for 125A to 250A amperage range
- OEM Praxair design for reliable fit and performance
- Pack of 3 delivers cost savings and replacement inventory
Technical Specifications
- Part Number: PRS41V35 / 41V35
- Manufacturer: Praxair / Linde Gas & Equipment
- Type: TIG Torch Back Cap (Medium)
- Series Compatibility: Series 9, 20, 25
- Amperage Rating: 125A – 250A
- Cooling Type: Air-cooled and water-cooled
- Quantity per Pack: 3 units
- Material: High-temperature rated polymer/composite
Typical Applications
The ProStar 41V35 back cap is used in:
- Manual TIG welding of stainless steel, aluminum, and mild steel
- Production welding shops requiring high consumable turnover
- Maintenance and service of existing ProStar torch fleets
- Fabrication facilities using Airco or Linde style TIG torches
- Both light-duty shop work and continuous industrial applications
Compatibility & Replacements
Compatible With
- Praxair ProStar Series 9 TIG torches
- Praxair ProStar Series 20 TIG torches
- Praxair ProStar Series 25 TIG torches
- Linde Gas & Equipment TIG torch systems
- Airco-style TIG torch bodies
- 125A–250A amperage-rated torch configurations
Replaces / Drop-In Replacement For
- OEM Praxair ProStar 41V35 back caps
- Equivalent medium back caps for WP-9, WP-20, WP-25 style torches
- Linde/Airco medium length back cap assemblies
Works With
- ProStar 20, 20M, 20P, and 25 torch body variants
- Standard TIG torch collet and collet body systems
- Gasket and insulator assemblies from Series 9–25 ranges
- Water-cooled and gas hose kits compatible with ProStar torches
















