Maxitrol 325-7AL-1 1/2 Regulator

The Maxitrol 325-7AL-1 1/2 is a high-performance lever-acting line pressure regulator engineered for commercial and industrial gas piping systems. Designed for high-capacity applications, this 1 1/2 inch NPT gas regulator manages up to 1,250,000 BTU/hr while maintaining a tight positive dead-end lock-up. This model, also identified as the 325-7AL-1212-NG02, is optimized for systems with a 2 PSI maximum inlet pressure, converting it to a stable 7-11 inch w.c. outlet pressure range. Its robust construction ensures precise gas pressure regulation for boilers, furnaces, and large-scale water heaters. This certified line pressure regulator complies with ANSI Z21.80/CSA 6.22 standards, making it the industry standard for intermediate pressure regulation where safety and flow consistency are paramount. Whether you are performing a new installation or a field replacement, this unit provides the flow velocity and pressure stability required for high-demand natural gas or LP appliances.

• High Flow Capacity: Supports up to 1,250,000 BTU/hr, catering to large-scale commercial equipment.
• Reliable Dead-End Lock-Up: Ensures no downstream pressure creep during periods of zero flow.
• Multi-Positional Installation: Validated for horizontal, vertical, or upright mounting for versatile field integration.
• OEM Cross-Compatibility: Directly replaces and functions identically to model 325-7AL-1212-NG02.
• Precise Modulation: Lever-acting design provides superior control under varying load conditions.

What is the maximum inlet pressure for the 325-7AL-1 1/2?
This regulator is rated for a maximum inlet pressure of 2 PSI. Exceeding this pressure can damage the internal diaphragm and affect the lock-up performance.

Does this regulator require a vent limiter?
For indoor installations, a vent limiter may be required depending on local codes. Always verify if the installation environment necessitates a dedicated vent line to the atmosphere.

Can the 325-7AL series be used for Propane (LP) applications?
Yes, the Maxitrol 325 series is compatible with natural, manufactured, mixed gases, and liquefied petroleum gases, provided the spring is correctly calibrated for the gas type.

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.