UL Alarm Check Valve  is of 4 types:-

1. 4”  Flange/Groove Alarm Check Valve

2. 6”  Flange/Groove Alarm Check Valve

Features:-

• 4” & 6” Alarm Check Valve has flanged end vertical installed alarm check valve

• The valve is made in accordance with UL 193 Alarm Valves for fire-protection service

• Material Cast iron ASTM A48 class no 35

• Rated pressure 175psi, test pressure 350 psi

• Marking UL Listed  175psi 4”/6” ALARM CHECK VALVE.

• Installation vertical ½ NPT(PT) thread female inlet ¾ NPT(PT) female thread outlet and ½ NPT(PT) female thread drain