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Air Maintenance Device Resists Corrosion
The Nitrogen Air Maintenance Device (NAMD), from Potter Electric Signal Company, is a field adjustable pressure regulating device used to keep nitrogen or air pressure at the correct level in dry pipe and preaction fire sprinkler systems. It can also be used to control pressure in dry pilot line systems of dry pilot actuated deluge or preaction valves. The NAMD is the only Air Maintenance Device on the market that uses all brass fittings, making it the most corrosion resistant device of its kind.