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30Z76 - ESAB Purox 30Z76 Replacement Regulator Diaphragm

Packaging: pack of 1
$35.67/EA $21.98/pack of 1 only $21.98/EASave 38%

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OVERVIEW

Restore Your Purox Regulator with the 30Z76 Diaphragm

If your trusty Purox regulator is starting to act up—maybe the pressure is creeping up when you aren't cutting, or you hear a faint hiss from the bonnet—it might be time to replace the diaphragm. The ESAB 30Z76 is the genuine replacement heart for your Purox R-33, R-50, or R-72 regulator. These regulators are built like tanks and can last for decades, but the rubber diaphragm inside is a wear item that eventually needs swapping out. Don't toss a good regulator just because the rubber has dried out; fix it right with this OEM part.

We know how frustrating it is when you can't get a stable flame because your gas pressure is wandering all over the place. A stiff or cracked diaphragm can't react quickly to changes in flow, making your torch sputter or blow out. By installing a fresh 30Z76 diaphragm, you bring back that snappy, precise control you expect from professional-grade equipment. It’s made from durable materials that stand up to the rigors of daily shop use, ensuring you won't be tearing your gear apart again anytime soon.

Safety is the biggest reason to keep your regulator internals fresh. A leaking diaphragm isn't just an annoyance; it can be a hazard, especially with fuel gases or oxygen. This simple replacement part ensures the gas stays where it belongs and flows only when you want it to. It fits perfectly because it's made by the same people who built the regulator. No guessing, no trimming, just a direct fit that gets you back to welding and cutting safely.

Whether you are running an old-school fabrication shop or just keeping your personal rig in top shape, maintaining your regulator is cheaper than buying a new one. The 30Z76 is the specific part you need for those classic Purox single-stage models. Grab one for your repair bench and keep your oxy-fuel setup running smooth, safe, and reliable for years to come.

Additional Information
Brand:ESAB
Packaging Description:1 Per Ea
Product Type:Replacement Diaphragm
Compatible Models:Purox R-33, Purox R-50, Purox R-72
Material:Neoprene/Rubber Composition
Application:Gas Regulation Repair

INCLUDED

  • 1 x 30Z76 Replacement Diaphragm Assembly

APPLICATIONS

  • Repairing Purox R-33 General Purpose Regulators
  • Servicing Purox R-50 Station Regulators
  • Overhauling Purox R-72 Heavy Duty Regulators
  • Correcting pressure creep issues in oxy-fuel systems
  • General regulator maintenance and refurbishment

FAQ

The 30Z76 is designed for Purox single-stage regulators, specifically the R-33, R-50, and R-72 series.

Common signs include 'creeping' pressure (gauge rises when torch is off), gas leaking from the regulator bonnet vent holes, or erratic flow during use.

Yes, this is a genuine ESAB/Purox OEM replacement part, ensuring correct fit and material specifications.

Regulator repair should be performed by qualified technicians. Improper assembly can lead to dangerous leaks or high-pressure failures.

It is constructed from a specialized elastomer composition designed for flexibility and resistance to specific welding gases.

If the leak is coming from the bonnet vent or caused by a ruptured diaphragm, yes. However, leaks can also come from the seat or o-rings, so a full inspection is recommended.

The 30Z76 is often used in both versions of the compatible Purox regulator series, but always verify the specific parts list for your gas service type.

No, it is specific to the internal geometry of Purox R-series regulators and will not fit Victor, Harris, or other brands.