Aqua Ammonia Tank Vacuum Breaker Valve
Aqua Ammonia Tank Vacuum Breaker Valve
(OP)
Hi,I'm looking for suggestions for a suitable Vacuum Breaker(s) for a 30,000 gal. stationary 29% Aqua Ammonia tank. We have had failures with Kunkle, Girard or DFT valves even though they are all 316 SS and suitable for ammonia service. I have looked at Johnson also, but this is located in an enviroment with up to 10 ppm SO2 concentration and the 440 SS ball is not suitable for SO2 service. 2-3" Hg rating would be a bonus.Any suggestions would be appreciated.Thanks





RE: Aqua Ammonia Tank Vacuum Breaker Valve
Assuming the failures were due to corrosion
Suggestion 1: FRP or PVC Conservation vent (Groth)
Suggestion 2: FRP or plastic Water vent pot.