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Brass Victor single-stage oxygen regulator with two gauges and T-handle, CGA-540 inlet

Victor

Victor 0781-0027 Single Stage CGA-540 4-80 psi Welding Regulator

SKU CH-AZYE-DHNVP

Single-stage oxygen regulator with CGA-540 inlet delivers 4 to 80 psi outlet pressure for general-purpose welding

  • TypeSingle Stage, Medium Duty
  • Single-stage design delivers stable oxygen flow for general-purpose welding
  • Medium-duty brass body with neoprene diaphragm resists wear in daily shop use
  • CGA-540 male inlet fits standard oxygen cylinders without adapters
  • Adjustable outlet pressure from 4 to 80 psi covers a wide range of torch tips
  • T-handle control and 2.5-inch gauges give clear, precise pressure setting

Victor 0781-0027 Oxygen Regulator

The Victor 0781-0027 is a single-stage, medium-duty gas regulator built for oxygen service with a CGA-540 inlet. It delivers adjustable outlet pressure from 4 to 80 psi through a brass body and neoprene diaphragm, making it suitable for general-purpose welding and cutting tasks.

Compatibility Check Before Purchase

Verify your cylinder has a CGA-540 valve outlet and a male 0.825-14 NGO thread to match the regulator inlet. Ensure your downstream hose or torch accepts a male 9/16-18 UNF outlet connection, and confirm the application does not require multi-stage pressure stability.

Thermal Noise and Power Characteristics

As a purely mechanical pressure-control device, the regulator generates no electrical noise, heat, or power draw during operation. The brass body and neoprene diaphragm operate passively, so thermal and acoustic considerations are limited to the gas flow itself and ambient workshop conditions.

Highlights

  • Single-stage design delivers stable oxygen flow for general-purpose welding
  • Medium-duty brass body with neoprene diaphragm resists wear in daily shop use
  • CGA-540 male inlet fits standard oxygen cylinders without adapters
  • Adjustable outlet pressure from 4 to 80 psi covers a wide range of torch tips
  • T-handle control and 2.5-inch gauges give clear, precise pressure setting

Specifications

BrandVictor
TypeSingle Stage, Medium Duty

Questions about this item

What comes in the box with the Victor 0781-0027 regulator and what must be purchased separately?

The regulator body with CGA-540 inlet nut and 9/16-18 UNF male outlet is supplied. Hoses, torch handle, flashback arrestors and cylinder cart are not included and must be bought separately.

How do I decide between the 4-80 psi range and other Victor models for oxygen service?

Choose this 4-80 psi single-stage unit for medium-duty oxygen cutting or heating where inlet pressure is stable. Select a two-stage model if outlet pressure must stay constant as the cylinder empties, or a higher-range regulator for heavy machine cutting.

What does the 80 psig maximum outlet pressure mean when the regulator is on a live oxygen cylinder?

The T-handle can be adjusted to deliver up to 80 psig at the 9/16-18 outlet while the inlet gauge reads up to 3,000 psig cylinder pressure. Actual flow depends on hose length, torch tip size and cylinder temperature.

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