4″ Model G-4000P Double Interlock Preaction with Electric / Pneumatic Release

Viking supervised Double-Interlocked Electric/Pneumatic Release Preaction Systems utilizing the Viking G-4000P Deluge Valve. The small profile, lightweight, pilot operated Viking G-4000P Deluge Valve comes complete as shown on the technical datasheet. The system piping is pressurized with air or nitrogen to serve both as a means of supervising the integrity of the piping network and as one portion of the system release operation. Double Interlock Electric/Pneumatic Release Preaction Systems are commonly used in cold storage applications and other areas where it is important to control accidental water discharge due to inadvertent damage to the sprinkler piping.