

Maxitrol 12A39 is a vent limiting accessory to Series 325-5A & 325-5AL regulators that eliminates the need to run vent piping to the outside. For use indoors and in spaces where limiting the amount of gas escapement due to diaphragm failure is critical.
A vent limiting orifice or device when used with Maxitrol regulators, does not release or relieve fuel gas into the environment during normal operation.
Vent limiters are designed for use indoors and in spaces where limiting the amount of gas escapement due to diaphragm failure is critical. Vent limiters should not be used outdoors if they are exposed to the environment.
Vent limiters can only be installed in regulators for which they are certified. Vent limtiers must only be installed directly into the vent connection of the regulator without intermediate pipe or fittings. When using a vent limiting deivce, the regulator must be installed in a horizontial upright position.
NOTE: Maxitrol vent limiters meet ANSI Z21.80/CSA 6.66. The requirement states "Vent limiters shall be of materials having melting points of not less than 800øF (427øC)."
Blog posts
-
Rainbird Controllers: Convenient, Connected Control at Your Fingertips
Read nowRain Bird makes it easy to find the perfect controllers, sensors, and accessories for any site. Explore our comprehensive range of intelligent irrigation tools designed to work together to provide superior results for your clients and complete peace of mind for you and your team.
-
Optimizing Sprinkler Spacing: Achieve Perfect Lawn Coverage and Water Efficiency
Read nowAt Big Frog Supply, we know a lush, green lawn starts with a well-designed irrigation system. If your sprinkler setup leaves you with stubborn brown patches or soggy, oversaturated zones, improper spacing might be the culprit. This updated guide simplifies sprinkler spacing, breaking down essential techniques, common pitfalls, and effective solutions. Learn how to optimize your sprinkler design for uniform watering, conserve water, and keep your landscape thriving year-round.
-
Introducing the New Rain Bird G5 Solenoid: Reliable Performance Meets Easy Installation
Read nowDiscover the Rain Bird G5 Solenoid, engineered for optimal irrigation performance. Durable, universally compatible, and easy to install—perfect for commercial and residential landscapes.