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Brass single-stage gas regulator with T-handle and pressure gauges

Victor Thermal Dynamics

Victor Thermal Dynamics 0781-0532 Gas Regulator Breathing Air Single Stage 0.825-14 Inlet

SKU CH-VFVN-EYAAD

Single-stage brass regulator delivers breathing air at up to 125 psig through a CGA 346 inlet and 5/8-18 UNF outlet

  • TypeWelding Supplies
  • Single-stage design delivers consistent 125 psig outlet pressure
  • CGA 346 inlet fits 0.825-14 breathing-air cylinders
  • Brass body with stainless-steel diaphragm resists corrosion
  • T-handle control allows precise flow adjustment
  • Female 5/8-18 UNF outlet suits standard hose fittings

Breathing-Air Regulator for Cutting and Welding

The Victor Thermal Dynamics 0781-0532 is a single-stage gas regulator built for breathing-air supply in cutting, heating and welding tasks. It connects to a cylinder through a male 0.825-14 NGO inlet and delivers gas through a female 5/8-18 UNF outlet. The brass body and stainless-steel diaphragm handle a maximum inlet gauge pressure of 4,000 psig while the outlet is limited to 125 psig.

Single-Stage Pressure Control Limits

A single-stage design reduces cylinder pressure to working pressure in one step, so outlet pressure will rise as the cylinder empties. The regulator carries CGA 346 certification for breathing-air service and is not intended for gases outside that classification. The T-handle control allows manual adjustment but does not compensate for inlet-pressure decay.

125 psig Maximum Outlet Pressure

The fixed 125 psig outlet ceiling determines whether this regulator suits the downstream equipment. Systems that require higher delivery pressure or automatic pressure compensation will need a different configuration.

Highlights

  • Single-stage design delivers consistent 125 psig outlet pressure
  • CGA 346 inlet fits 0.825-14 breathing-air cylinders
  • Brass body with stainless-steel diaphragm resists corrosion
  • T-handle control allows precise flow adjustment
  • Female 5/8-18 UNF outlet suits standard hose fittings

Specifications

BrandVICTOR
TypeWelding Supplies

Questions about this item

Should I choose a single-stage or multi-stage regulator for breathing-air welding jobs?

This unit is a single-stage model with a maximum outlet pressure of 125 psig, suitable for cutting, heating and welding where constant cylinder pressure is not critical.

What does the 4,000 psig maximum gauge outlet pressure mean when the regulator is installed?

It indicates the highest pressure the outlet gauge can display; the actual working pressure delivered to the torch is limited to 125 psig by the regulator design.

Will the CGA 346 inlet with 0.825-14 NGO threads connect directly to my breathing-air cylinder?

Yes, the male NGO inlet sized 0.825-14 matches CGA 346 cylinder valves used for breathing air, providing a direct brass-to-brass connection.

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