The Victor LC350DR-540 is a liquid cylinder regulator specifically designed for the gaseous withdrawal of liquid oxygen. Engineered for vapor-side applications, this regulator provides smooth, stable, and precise delivery pressure control for cryogenic cylinders and vessels.

Built with a forged brass body and housing cap, the LC350DR-540 offers exceptional durability and long service life. Its large 2-3/4″ stainless steel diaphragm ensures consistent regulation, while the Delrin® cap bushing allows smooth adjustment. This regulator includes a 500 PSI external pressure relief valve on the high-pressure side and a sintered bronze inlet filter for added safety and reliability.

Key Features

• Designed for gaseous withdrawal from liquid oxygen cylinders or vessels
• Vapor-side application regulator for precise, consistent flow
• 0–125 PSI delivery pressure range for controlled gas output
• 500 PSI maximum inlet pressure for cryogenic use
• Large 2-3/4″ stainless steel diaphragm ensures stable performance
• Forged brass body and housing cap for strength and corrosion resistance
• Delrin® cap bushing provides smooth and reliable pressure adjustment
• Stem-type seat assembly enhances regulation accuracy and durability
• Sintered bronze inlet filter prevents impurities from entering the system
• 2.5″ dual-scale outlet gauge (200 PSI) for clear and accurate pressure readings
• 500 PSI external relief valve on high-pressure side for added safety
• Conforms to CGA E-4 Standard for gas pressure regulators

Technical Specifications

• Brand: Victor
• Model Number: LC350DR-540
• Series: LC350
• Gas Service: Liquid Oxygen (Gaseous Withdrawal)
• Application Type: Vapor-side regulation
• Maximum Inlet Pressure: 500 PSI (34.5 bar)
• Delivery (Outlet) Pressure Range: 0 – 125 PSI (0 – 8.6 bar)
• Diaphragm Material: Stainless steel, 2-3/4″ diameter
• Body Material: Forged brass
• Inlet Connection: CGA 540
• Outlet Connection: 9/16″-18 RH (Male)
• Outlet Gauge: 2.5″ dual-scale, 200 PSI
• Relief Valve: External 500 PSI (high-pressure side)
• Standards: CGA E-4 compliant