Maxitrol 325-3L47-3/8 Regulator

The Maxitrol 325-3L47-3/8 is a professional-grade line pressure gas regulator engineered for 2 PSI and 5 PSI piping systems. This certified line pressure regulator features a 3/8" NPT connection and a lever acting design that provides precise control from full flow down to pilot flow. Built for reliability in residential and commercial applications, it includes an integrated Overpressure Protection Device (OPD) to ensure system safety and compliance with ANSI Z21.80/CSA 6.22 standards. The factory-set 7-11" w.c. outlet pressure and a maximum capacity of 125,000 BTU/hr make it an essential component for downstream equipment. High-leverage valve linkage provides positive dead-end lock-up, while the durable aluminum housing supports multi-positional mounting. Whether you are running natural gas or LP gas, this regulator maintains stable pressure across varied inlet conditions up to 5 PSI.

Key Benefits

• Integrated Safety: Features a factory-preassembled Overpressure Protection Device (OPD) for high-pressure piping systems.
• Versatile Performance: Suitable for natural gas, LP, and mixed gas types with an emergency exposure limit of 65 PSI.
• Precision Control: High-leverage lever acting design ensures accurate regulation and positive dead-end lock-up.
• Flexible Installation: Compact 3/8" NPT footprint supports various mounting positions in tight mechanical spaces.
• Reliable Capacity: Rated for a maximum individual load of 125,000 BTU/hr to serve high-demand appliances.

Common Questions

What is the maximum inlet pressure for the 325-3L47-3/8?
This specific model is certified for a maximum inlet pressure of 5 PSI when used with its integrated overpressure protection device.

Can this regulator be used for propane (LP) applications?
Yes, it is compatible with LP gas-air mixtures and liquefied petroleum gases. For LP applications, the outlet pressure is typically adjusted toward the 11" w.c. setting.

Does this unit require a separate vent limiter?
The 325-3L47 series comes with an integral vent limiting orifice (OPD 47) which often eliminates the need for separate vent piping to the outdoors, depending on local codes and indoor placement.

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.