249237 ⎘
Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type]; Biased open; Weight biased Edge pivoted valve
Passive backflow prevention apparatus and associated toilet system and method
#2Aspirator system pressure relief mechanism
#3Check valves
#4GULLY ARRANGEMENT
#5Flushing device with removable drain ring for potable water systems
#6Hingeless flapper valve for flow control