Electric valve actuator DP-1

pneumaticscrew

The TYCO Model DP-1 Dry Pilot Actuator is an auxiliary releasing device designed for use with TYCO Deluge and Preaction Valves having dry pilot release systems. Also, the Model DP-1 is used for TYCO Preaction Valves having double-interlock electric/pneumatic release. The Model DP-1 actuates these automatic water control valves upon release of air (nitrogen) pressure. In the case of dry pilot actuation, air pressure is released due to opening of a pilot sprinkler, or in the case of double-interlock preaction systems air pressure is released from the system piping due to the opening of an automatic sprinkler. When the Model DP-1 actuates, it permits water pressure to be released from the deluge or preaction valve differential chamber, thereby allowing the deluge or preaction valve to open. The Model DP-1 Dry Pilot Actuator is a redesignation for the Central Model DP, Gem Model B-1, and Star Model S440. The Model DP-1 Dry Pilot Actuator described herein must be installed and maintained in compliance with this document, as well as with the applicable standards of the National Fire Protection Association (NFPA), in addition to the standards of any other authorities having jurisdiction. Failure to do so may impair the integrity of this device. The owner is responsible for maintaining their fire protection system and devices in proper operating condition. Contact the installing contractor or product manufacturer with any questions.