Canadian
Canadian owned and operated
Welders Helper
cart
Canada’s Premier Online Welding Supply Shop!
Awaiting product image

21562 - ESAB R-33 Regulator Burst Disc Retainer Cap

Packaging: pack of 1

Sorry, product has been discontinued by the vendor.

SKU: ESB21562 Categories: ,

OVERVIEW

Genuine ESAB Safety Replacement Parts

The ESAB 21562 Retainer Burst Disc is a critical component designed specifically for the maintenance and repair of ESAB R-33 series gas regulators. In the world of industrial gas regulation, safety is paramount. The burst disc assembly acts as the primary safety relief mechanism, designed to vent gas harmlessly if the internal pressure of the regulator exceeds safe operating limits. This retainer is the mechanical cap that holds the burst disc (rupture disc) firmly in place against the valve seat, ensuring it only deploys when absolutely necessary.

Manufactured from high-quality brass, this retainer is engineered to withstand the rigors of industrial environments while resisting corrosion and wear. Over time, threads on safety caps can become stripped, or the hex head may become rounded due to improper tooling during maintenance checks. Replacing the retainer with a genuine ESAB 21562 part ensures that the threading engages perfectly with the regulator body, maintaining the precise torque required for the burst disc to function at its rated pressure. Using non-OEM parts in safety relief assemblies can lead to unpredictable venting pressures, compromising the safety of the welding operator and the equipment.

Regular inspection of your gas regulation equipment is essential for compliance and safety. If you are overhauling an R-33 regulator or have noticed damage to the existing safety relief assembly, this retainer is the exact replacement needed to restore the unit to factory specifications. It is compatible with the specific geometry of the R-33 high-pressure relief valve channel. Trust in genuine ESAB parts to maintain the reliability and longevity of your gas control systems.

Key Benefits of OEM Regulator Parts

  • Safety Assurance: Designed to meet the specific pressure ratings of the R-33 series.
  • Perfect Fit: Precision machining guarantees correct thread engagement and sealing.
  • Durability: High-grade brass construction resists environmental corrosion.
Additional Information
Packaging Description:1 Per Ea, pack of 1
Item:Retainer
Product Type:Burst Disc Retainer
Compatible Model:R-33 Regulator
Material:Brass
Application:Gas Regulation Safety
----- new values below ----
Product Type:Burst Disc Retainer
Compatible Model:R-33 Regulator
Material:Brass
Application:Gas Regulation Safety
Brand:ESAB
Packaging Description:1 Per Ea
Item:Retainer

INCLUDED

  • 1 x ESAB 21562 Burst Disc Retainer

APPLICATIONS

  • Repair and maintenance of ESAB R-33 gas regulators.
  • Replacement of damaged or stripped safety relief valve caps.
  • Routine overhaul of industrial gas control equipment.
  • Safety compliance inspections for welding gas systems.

FAQ

The retainer screws into the regulator body to hold the burst disc (rupture disc) in place, forming the safety relief valve assembly.

No, this is typically just the metal retainer cap. The burst disc is usually sold separately or as part of a kit.

It is manufactured from high-quality brass to ensure durability and compatibility with gas regulator bodies.

No, it is specifically designed for the R-33 series and potentially compatible models sharing the same safety valve design.

Replace it if the threads are stripped, the hex head is rounded off, or if there are signs of physical damage or stress cracks.

Absolutely not. This retainer is a specialized safety component often featuring specific venting ports or geometry required for the relief valve to function safely.

Yes, this is a genuine ESAB (formerly associated with brands like Purox/L-TEC) replacement part.

Related products