Air Pressure Maintenance Device

It is used to control the supervisory air pressure in a dry pipe sprinkler system preaction system or dry pilot line system of a dry pilot sprinkler actuated deluge or preaction valve. Reduces high pressure supply air through the integral regulator to recommended air pressure based on the water supply pressure. Air pressure maintenance device model d 2 the viking model d 2 air pressure maintenance device is a pressure regulator that automatically reduces the supply air pressure to a preset requirement when connected to a constantly maintained air supply.

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The regulator in the model a pmd reduces higher pres.

Air pressure maintenance device.

Series 757 firelock air maintenance trim assembly. Model a pressure maintenance device the model a pressure maintenance device pmd is designed for use where a source of compressed air plant air system tank mounted compressor with a pressure control etc or nitro gen cylinder equipped with a high pressure regulating device is available. 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. Model h 2 and h 3 air pressure maintenance device.

The h 1 is utilized in applications where there is a compressed air or nitrogen. Globe s model h 1 air pressure maintenance device is an automatic field adjustable device of the pressure reducing type. Where a field adjustable pressure reducing type air maintenance device is required to control the on off cycling of the systems air pressure as provided by an air compressor in dry pipe preaction type and dry pilot lines of deluge systems they shall be specifically listed for such use. 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.

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