The h 1 is utilized in applications where there is a compressed air or nitrogen.
Air pressure maintenance device model d 2.
A union should be installed between the outlet of the air pressure maintenance device and the downstream isolation valve for servicing.
The amd 2 is rated for 175 psi.
Model h 2 and h 3 air pressure maintenance device.
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.
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 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.