Maxitrol 12A09 Gas Pressure Regulator Vent Limiter

Maxitrol 12A09 Gas Pressure Regulator Vent Limiter is a precision, automatic vent limiter designed to safely regulate gas pressure in propane and natural gas systems. Constructed from brass for durable performance, this vent limiter integrates seamlessly with standard gas regulators.

Used on compatible models 325-3, 325-3L, OPD48, and OPD600, the valve features a nominal size of 1/8 inch threaded and ratings of 2 PSI for liquid propane and 5 PSI for natural gas. It carries CSA and ANSI standards for safety and reliability.

• Automatic vent limiter design for safe gas pressure control
• Brass construction ensures durability and corrosion resistance
• Compatible with 325-3, 325-3L, OPD48, OPD600 regulators
• Nominal size: 1/8 inch threaded (NPT)
• Pressure ratings: 2 PSI (liquid propane), 5 PSI (natural gas)
• Meets CSA and ANSI standards

This Maxitrol component helps prevent regulator backflow and over-venting, reducing risk of leaks and ensuring consistent fuel delivery for appliances and heating systems. Its compact brass body is designed for easy installation and long service life in commercial and residential applications.