Maxitrol 325-5BL-1/2 Regulator

The Maxitrol 325-5BL-1/2 is a professional-grade 1/2" NPT line pressure regulator designed specifically for 2 PSI gas piping systems. Engineered with a durable lever-acting design, this regulator excel in residential, commercial, and industrial applications where downstream equipment requires a stable 7-11" w.c. outlet pressure. Featuring positive dead-end lock-up, it ensures a tight seal and prevents pressure equalization when downstream appliances are not in use, protecting your gas valves from over-pressurization.

Built for harsh environments, this model incorporates Imblue Technology, an specialized anodized coating that significantly increases corrosion resistance. This makes it the preferred 2 PSI gas regulator for outdoor installations, coastal regions, or rooftops where salt air and moisture typically degrade standard aluminum housings. With a 425,000 BTU/hr max individual load and a 500,000 BTU/hr capacity for multiple appliances, it provides the high-flow performance necessary for modern high-efficiency boilers and furnaces. It meets all rigorous ANSI Z21.80/CSA 6.22 standards for line pressure regulation, providing the reliability required by professional contractors.

• Corrosion Protection: The Imblue coating allows for reliable operation in high-humidity and salt-spray environments without oxidizing.
• Superior Lock-up: The high leverage linkage ensures a positive dead-end lock-up, preventing damage to downstream appliance components.
• Versatile Compatibility: Certified for use with natural, manufactured, mixed, and liquefied petroleum (LP) gases.
• Installation Flexibility: Compact 1/2" NPT footprint fits easily into tight manifolds while maintaining a high flow rate.

• Can this be used for 5 PSI systems? In its standard configuration, this model is certified for a 2 PSI max inlet pressure. For 5 PSI systems, an overpressure protection device (OPD) is required.
• How does the lock-up feature work? When the downstream device shuts off, the internal valve seat closes with increasing force as pressure rises, preventing the high inlet pressure from "creeping" into the appliance line.
• Is a vent limiter required? For indoor installations, a vent limiter or vent line to the outdoors is typically required by local code to prevent gas discharge in the event of a diaphragm rupture.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.