Model amd 2 air maintenance device with pressure switch model amd 2 air maintenance device is used for automatic operation in conjunction with a dedicated fire protection air compressor that does not have a pressure switch installed such as our l series base mounted lubricated units.
Air pressure maintenance device model d 2.
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.
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.
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.
The amd 2 is rated for 175 psi.
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.
The h 1 is utilized in applications where there is a compressed air or nitrogen.