Maxitrol 325-5L-1-12A39 Regulator
The Maxitrol 325-5L-1-12A39 is a field-proven 1" NPT gas regulator engineered specifically for high-capacity 2 PSI piping systems in residential, commercial, and industrial settings. Designed for high-performance applications, this lever acting gas regulator features a high leverage valve linkage assembly that ensures a positive dead-end lock-up, providing precise control across the entire flow range down to pilot flow. With an integral 12A39 vent limiter, this unit is certified for indoor installations without the need for external vent piping when mounted in an upright horizontal position. It handles a 425,000 BTU/hr maximum individual load and a total combined load of 600,000 BTU/hr, making it a reliable solution for manifold systems serving multiple appliances. Constructed from high-strength aluminum, the line pressure regulator is compatible with natural, manufactured, mixed, and liquefied petroleum gases, maintaining a stable 7-11"wc outlet pressure despite fluctuations in the 2 PSI maximum inlet supply.
- System Versatility: Certified for 2 PSI piping, effectively reducing "pounds to inches" for appliances requiring lower operating pressures.
- Indoor Safety: Factory-installed 12A39 vent limiter eliminates the labor and material costs of running vent lines to the outdoors.
- Lock-Up Performance: High leverage design ensures positive dead-end lock-up, preventing downstream pressure creep during periods of no demand.
- Multi-Appliance Capacity: Supports up to 600,000 BTU/hr total load, ideal for serving a large appliance or several smaller units simultaneously.
- Rugged Construction: Durable aluminum housing designed to withstand ambient temperatures ranging from -40 to 205° F.
Can the Maxitrol 325-5L be used for outdoor installations?
While this standard model is primarily for indoor use with the vent limiter, outdoor applications typically require the "Imblue Technology" coating (suffix "B") and a vent protector instead of a limiter to prevent water and debris entry.
What is the proper mounting orientation for this regulator?
When using the included 12A39 vent limiter, the regulator must be installed in a horizontal upright position to ensure the ball check mechanism functions correctly.
Is this regulator suitable for LP gas systems?
Yes, it is compatible with LP and propane gas mixtures, though technical specs note a maximum inlet pressure of 2 PSI for LP applications versus higher tolerances for some natural gas setups.
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.
QUESTIONS & ANSWERS
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Can these be installed outdoors?
Please see below links for tech sheet and instruction manual. Thank you.
Tech Sheet
Inst Manual