AIR RELEASE VALVE FOR FIRE FIGHTING Air release valve can efficiently evacuate the air in the pipe to reduce the noise or the interference which causes by air. Air release valve can only be installed vertically. Installing air release valve at the highest part of pipe line will recommend. » Valve Body Testing Pressure: 32 kgf/cm’ » Valve Seat Testing Pressure: 25 kgf/em? » Maximum Applied Pressure: 20 kgf/cm? » Maximum Applied Temperature: -15C~80C » Materials of valve body: Ductile Iron, Stainless Steel » Applied Conditions: W ater » With ball valve for manual air release and with check valve No | Part Name Ductile Iron | Stainless Steel Fixed Bolt |Galvanized Iron| Stainless Steel Stainless Steel | Stainless Steel 7 | Ball valve Item No | Size ATR-15-S| Gate Full Open, Normal atmospheric temperature For Size 1 1/2” and 27, only available in Ductile Iron Installing air release valve at the pipe line where gather easil