AMD with Adjustable Regulator Model AMD-74


The BERMAD Air Maintenance Device (AMD) is a pressure control unit that automatically regulates the supplied air pressure to a constant preset value. It is suited for use with dry pilot actuated Deluge systems as well as Dry Pipe and Pre-Action systems.

The AMD includes a field-adjustable pressure regulator, through which the air/nitrogen pressure supply can be reduced, a check valve to maintain system pressure in the event of pressure source failure, a filter to ensure a clean air supply, and a bypass valve for a quick initial air pressure filling of the system.

The supply system should include an air tank (provided separately).