Maxitrol R500S-1/2 Gas Pressure Regulator

The Maxitrol R500S-1/2 Gas Pressure Regulator is a high-performance Gas Pressure Regulator featuring a double diaphragm balanced valve for precise control. Designed for burner and pilot loads, this nominal 1/2 inch regulator supports natural gas, mixed gas, LPG and LP gas–air mixtures, delivering steady performance across demanding applications. The aluminum body keeps weight down while resisting corrosion, and the unit operates from -40 to 250°F. With an inlet rating of 5 PSI and an emergency exposure limit of 12.5 PSI, it provides safety margins for sustained operation. End connections are female threaded x female threaded, with a 3" end-to-end distance, and a 1/8" vent pipe connection. The compact profile (3.1" W x 4.7" H) and a 3.6" swing radius make it a space-conscious choice for confined installations, while compliance to UL, CSA, CE and ANSI Z21.18 ensures reliability.

• Nominal size: 1/2 inch with female-threaded ends
• Valve design: Double diaphragm balanced valve for stable regulation
• Construction: Aluminum body for durability and light weight
• Pressure specs: Inlet 5 PSI; emergency exposure limit 12.5 PSI
• Gas compatibility: Natural gas, mixed gas, LPG and LP gas–air mixtures
• Connections & dimensions: End-to-end 3" / vent 1/8", swing radius 3.6"
• Operating range: -40 to 250°F
• Certifications: UL, CSA, CE, ANSI Z21.18
• Dimensions: 3.1" W x 4.7" H
• Pressure drop rating: 730 BTU/hour