Maxitrol 325-3-3/8 Regulator

The Maxitrol 325-3-3/8 Gas Regulator is a high-performance lever acting design solution for contractors managing residential and commercial gas piping systems. This 3/8" NPT gas regulator is engineered for pounds to inches reduction, handling a 10 PSI max inlet pressure with a stable 4-12" WC outlet pressure range. Designed for versatility, it supports natural gas, LP, and mixed gas applications, delivering positive dead-end lock-up to protect downstream equipment. With a 100,000 BTU/hr max individual load and up to 150,000 BTU/hr multiple load capacity, this 325 series model excels in precise pressure control from full flow down to pilot flow. The durable aluminum die-cast housing and corrosion-resistant internal components make this a reliable choice for line pressure regulator installations in boilers, water heaters, and industrial furnaces. Ensure proper multi-poise mounting or upright installation when utilizing vent limiting devices to meet specific site requirements.

Key Benefits

• Positive Dead-End Lock-Up: Features a high-leverage valve linkage assembly to ensure a tight seal and superior pressure control.
• High Capacity Performance: Optimized for 100,000 BTU individual appliance loads and 150,000 BTU combined loads.
• Multi-Fuel Compatibility: Suitable for use with natural gas, manufactured, mixed, and liquefied petroleum (LP) gases.
• Precision Regulation: Maintains consistent 4-12" WC outlet pressure even at low pilot flow rates.
• Robust Construction: Built with a rugged aluminum housing and high-quality synthetic rubber diaphragms for long-term service.

Common Questions

What is the maximum inlet pressure for the Maxitrol 325-3?
This regulator is rated for a maximum inlet pressure of 10 PSI, though it is often utilized in 2 PSI and 5 PSI piping systems for safe delivery to appliances.

Can this regulator be used for outdoor installations?
Yes, the 325 series can be used outdoors if protected from the elements. For enhanced protection, contractors often specify the Imblue Technology (B-suffix) version or install a vent protector.

Is a vent line required for this model?
A vent line is required unless a certified vent limiting device, such as the 12A09, is installed. When using a vent limiter, the regulator must be mounted in the upright horizontal position.

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.