Maxitrol 325-7A-1 1/4-12A49 Regulator

Optimize your gas pressure management with the Maxitrol 325-7A-1 1/4-12A49 Regulator, a precision-engineered lever-acting gas regulator designed for high-capacity residential and commercial service lines. This 1 1/4 inch NPT gas regulator is specifically built for "pounds-to-inches" reduction, featuring a positive dead-end lockup to ensure reliable pressure control during no-flow conditions. With a maximum capacity of 1,250,000 BTU/hr, this unit excels in maintaining flat regulation across a wide range of flow rates, from pilot loads to full demand. The pre-installed 12A49 vent limiter eliminates the need for expensive vent piping to the outdoors by safely containing gas escapement in the event of diaphragm rupture. This Maxitrol 325 series regulator supports a 5 PSI maximum inlet for natural gas and 2 PSI for LP, delivering a steady 4-12 inch w.c. outlet pressure. Constructed from high-strength aluminum, it provides durable performance for commercial gas pressure regulation and furnace gas train assemblies.

• High-Capacity Throughput: Supports up to 1,250,000 BTU/hr, making it suitable for large boilers, commercial water heaters, and industrial furnaces.
• Integrated Vent Limiting: Features an factory-installed 12A49 vent limiter for indoor installations, reducing labor and material costs associated with external venting.
• Lever-Acting Design: Employs a high-leverage valve linkage for superior responsiveness and positive dead-end lockup.
• Multi-Poise Mounting: Capable of multi-positional installation; however, when used with a vent limiter, it must be mounted in an upright horizontal position.
• Versatile Fuel Compatibility: Fully compatible with natural gas, liquefied petroleum (LP), and specialized gas-air mixtures.

Can I use this regulator for outdoor applications?
Yes, though outdoor use typically requires a vent protector to prevent debris and moisture from entering the vent connection. If using the 12A49 vent limiter, it is primarily intended for indoor protection where limiting gas escapement is critical.

Is the outlet pressure adjustable?
The standard 4-12" w.c. outlet range is field-adjustable by turning the internal adjustment screw under the seal cap. Always use a manometer to verify final outlet pressure during commissioning.

What is the maximum inlet pressure rating?
When the vent limiter is installed, the maximum rated inlet pressure is 5 PSI for natural gas and 2 PSI for LP gas to maintain safe operation and code compliance.

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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.