China Tyco Dpv-1 Pre-Trimmed Dry Pipe Alarm Check Valve

TYCO DPV-1 Pre-trimmed Dry Pipe Alarm Check Valve
The Model DPV-1 Dry Pipe Valves are differential valves used to automatically control the flow of water into a dry pipe fire protection sprinkler system upon operation of one or more automatic sprinklers.
Dry pipe sprinklers systems are used in unheated warehouses, parking garages, attic spaces, loading docks, and other areas exposed to freezing temperatures, where water filled pipe connot be utilized.