Victor 0781-3503 Two Stage Oxygen Regulator

Product Description

The VICTOR 0781-3503 is a medium-duty, two-stage oxygen gas regulator designed to deliver consistent outlet pressure even as inlet pressure drops throughout cylinder use. Two-stage regulation minimizes delivery pressure variation, making it the correct choice for applications where pressure fluctuation would affect work quality or test accuracy. The body is die-forged brass for structural strength, and a fabric-reinforced neoprene diaphragm supports long service life. A precision-machined nozzle provides optimum flow control. This regulator is intended for use with medium to large oxygen cylinders in industrial, welding, and cutting applications.

The 0781-3503 suits medium-duty oxygen service across a range of professional applications including oxy-fuel welding, cutting, and brazing setups. Its two-stage design is particularly well suited for jobs where maintaining a stable delivery pressure is critical to process consistency, such as precision cutting operations or controlled test environments. It is sized for use with medium to large cylinders and is sold as an individual unit.

Key Features

• Two-stage regulation maintains constant delivery pressure over a range of decreasing inlet pressures
• Die-forged brass body and spring housing cap for extra strength and durability
• Fabric-reinforced neoprene diaphragm for extended service life
• Delrin insert bushing for smoother, more durable adjustment
• Stem-type seat mechanism uses inlet pressure to aid sealing
• Stainless steel ball in adjusting screw for easy, consistent adjustment
• Every unit factory-tested for quality assurance before shipment

Compatibility

Designed for medium-duty oxygen gas service with medium to large cylinders. Part of the VICTOR VTS two-stage regulator series.

Installation Notes

Oxygen regulators must be installed by qualified personnel following applicable compressed gas and welding safety codes. Always verify the cylinder valve, regulator inlet connection, and hose fittings are free of oil, grease, and contaminants before assembly, as these substances create a serious fire and explosion hazard in oxygen service. Shut off the cylinder valve and bleed all pressure from the system before connecting or disconnecting the regulator. Use only fittings and hoses rated for oxygen service.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.