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21872 - Purox R-22 Regulator Valve Stem and Seat Assembly Repair Part

Packaging: pack of 1
$49.83/EA $29.83/pack of 1 only $29.83/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Restore Your Purox R-22 Regulator to Factory Performance

Is your trusty Purox R-22 regulator letting pressure creep up on the gauges even when you aren't cutting? Or perhaps you hear a humming noise during operation? These are classic signs that your valve stem and seat assembly is worn out. The ESAB 21872 Valve Stem & Seat Assembly is the genuine replacement part you need to fix these issues and get your regulator back to working like new. Don't risk your safety or weld quality with generic knock-offs; this part is made by ESAB specifically for the R-22 platform.

The valve stem and seat act as the heart of your regulator, controlling the massive pressure coming from your gas cylinder. When you turn the adjusting screw, this little assembly does the heavy lifting to meter that gas down to a usable pressure. Because it works so hard, it is often the first part to wear out after years of service. Installing the 21872 assembly is a straightforward repair for experienced equipment technicians that solves leaking and pressure instability immediately.

By choosing the genuine ESAB 21872, you are ensuring that your equipment remains safe and reliable. The materials used in the seat are designed to resist the harsh environment of high-pressure oxygen and other industrial gases, preventing premature failure. Whether you are running a fabrication shop or maintaining your own rig, keeping a spare valve stem and seat assembly on hand is a smart move to minimize downtime. Get your R-22 back in the game with the part designed to fit it perfectly.

Additional Information
Brand:ESAB
Packaging Description:1 Per Ea
Compatible Model:Purox R-22 Regulator
Part Type:Valve Stem & Seat Assembly
Gas Service:Oxygen, Industrial Gas

INCLUDED

  • 1 x Valve Stem
  • 1 x Seat Assembly

APPLICATIONS

  • Repairing Purox R-22 Regulators
  • Fixing regulator pressure creep
  • General regulator maintenance and overhaul
  • Industrial gas equipment refurbishment

FAQ

This part is designed specifically for the Purox R-22 series regulators.

Common symptoms include 'creeping' delivery pressure (pressure rises on the gauge when the torch is off) or a humming sound during gas flow.

Yes, this is a genuine OEM replacement part manufactured by ESAB (formerly Union Carbide/Purox).

No, this SKU includes only the valve stem and seat assembly. The diaphragm is sold separately.

Yes, the R-22 is commonly an oxygen regulator, and this part is compatible, provided standard oxygen cleaning procedures are followed during repair.

You will need standard regulator repair tools, including a bench vise and appropriate wrenches to open the regulator body safely.

Humming or vibration is often caused by a worn seat or a resonant vibration in the valve stem assembly, which this replacement part can fix.

In this assembly (21872), the stem and seat are typically supplied as a matched unit to ensure proper sealing geometry.