Air Maintenance Device
The Automatic Air Maintenance Device is a UL Listed and FM Approved assembly of valves, nipples, fittings, and actuators to automatically control the air pressure in the piping of dry pipe sprinkler systems, preaction sprinkler systems, or dry pilot actuated deluge systems.
The Air Maintenance Device is designed to automatically feed air into the system piping at the required volume and pressure from an air source such as:
1. An air compressor
2. An air receiver tank
3. A plant air system (owner's air)