Globe s model h 1 air pressure maintenance device is an automatic field adjustable device of the pressure reducing type.
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.
A union should be installed between the outlet of the air pressure maintenance device and the downstream isolation valve for servicing.
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.
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.
Install the viking model d 2 air pressure maintenance device in the air or nitrogen supply piping between two valves to allow isolation of the device for maintenance and adjustment.
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.