TYCO Model AMD-1 FM UL Automatic Air Maintenance Device
The TYCO Model AMD-1 Automatic Air Maintenance Device is an automatic, field-adjustable, pressure reducing device. It is used to control the pressure in a dry pipe sprinkler system, preaction system, or dry pilot line system of a dry pilot actuated deluge or preaction valve.
The Model AMD-1 Device is utilized in applications where there is a compressed air source controlled at a higher pressure than the desired system pressure. Pressure sources incude plant air supplies with their own automatic compressor controls or nitrogen supplies with single-stage, cylinder-mounted pressure regulators.