Maxitrol 325-5L48-1/2 Regulator

The Maxitrol 325-5L48-1/2 is a light-duty line pressure gas regulator engineered for 5 PSI piping systems, serving as the high-capacity successor to the 325-5AL48-1/2. Designed with a 1/2" NPT connection, this lever-acting regulator is factory-preassembled with an Overpressure Protection Device (OPD) to ensure safety and compliance with ANSI Z21.80/CSA 6.22 standards. This specific model supports a max capacity of 235,000 BTU/hr, making it ideal for high-demand residential or commercial appliances requiring a precise 7-11" w.c. outlet pressure range. Its dead-end lock-up capability and high-leverage valve linkage provide stable regulation from full flow down to pilot stages. Note that while this unit is multi-positional, installing a vent limiting device requires a vertical upright orientation for the lock-up test and functional accuracy. Use this natural gas regulator (also suitable for LP/propane) to reduce line pressure to appliance-safe levels, effectively replacing legacy 5AL-series hardware without increasing the installation footprint.

• Higher Capacity Output: Delivers up to 235,000 BTU/hr, surpassing the legacy 325-5AL series performance for demanding equipment.
• Integrated Overpressure Protection: Features a factory-assembled OPD, mandatory for 5 PSI gas piping systems to meet safety codes.
• Precise Pressure Control: High-leverage valve design ensures consistent 7-11" w.c. outlet delivery even during low-flow or pilot-only cycles.
• Versatile Fuel Compatibility: Fully certified for use with natural gas, manufactured, mixed, and liquefied petroleum (LP) gases.
• Multi-Positional Mounting: Compact aluminum housing allows for flexible gas line installation in tight mechanical spaces.

• Can I use this as a direct replacement for the 325-5AL48-1/2? Yes, this is the official updated version with a higher BTU capacity, utilizing the same physical footprint for easy retrofitting.
• Is supplemental venting required for this regulator? If the OPD is used without a vent limiting device, local codes typically require the vent to be piped independently to the outdoors.
• Can this model be mounted horizontally? It is suitable for limited horizontal mounting; however, if a ball-check vent limiter is added, it must be installed in the upright vertical position to function correctly.

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.