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).
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