Maxitrol 325-5L-1/2-12A39 Regulator

The Maxitrol 325-5L-1/2-12A39 is a field-proven line pressure gas regulator designed for 2 PSI piping systems in residential, commercial, and industrial settings. As a veteran in the field, you know the importance of positive dead-end lock-up; this unit’s high-leverage valve linkage ensures it. It manages a maximum individual load of 425,000 BTU/hr and a total combined load of 500,000 BTU/hr, making it ideal for high-demand equipment. The included 12A39 vent limiter allows for indoor installation without the need to run vent piping to the exterior, provided the regulator is mounted in a horizontal upright position. This ANSI Z21.80 certified regulator features a 1/2" NPT connection and a factory-set 7-11" w.c. outlet pressure range (white spring), ensuring precise control from full flow down to pilot flow. Its rugged aluminum housing and wide ambient temperature range (-40°F to 205°F) make it a staple for mid-range gas pressure reduction.

• Internal Safety: Lever-acting design provides high-leverage valve seating for positive dead-end lock-up.
• Ventless Compliance: Integrated 12A39 vent limiter eliminates external vent lines for simplified indoor installs.
• Multi-Fuel Capability: Fully compatible with natural gas, LP/propane, and mixed gas systems.
• Precise Regulation: Delivers stable 7-11" w.c. pressure from 2 PSI inlets, preventing nuisance appliance lock-outs.

Can I install this regulator vertically or upside down?
When utilizing the 12A39 vent limiter for indoor use, the regulator must be installed in a horizontal, upright position to meet safety certifications and ensure the limiting device functions correctly.

Is this suitable for a single 500,000 BTU appliance?
No. While the max multiple load is 500,000 BTU/hr, the maximum individual load for any single appliance served by this regulator is 425,000 BTU/hr.

What happens if the inlet pressure exceeds 2 PSI?
This specific model is certified for 2 PSI piping systems. For 5 PSI systems, an Over Pressure Protection Device (OPD) model would be required to meet code and ensure system safety.

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.