249238 ⎘
Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type]; Biased open Pivoted valves
Passive backflow prevention apparatus and associated toilet system and method
#2Watertight check valve
#3Watertight check valve
#4Watertight check valve
#5Aspirator system pressure relief mechanism
#6Check valves
#7Flow-controlling unit provided in flow channel
#8Mechanical fuse to seal pipes upon unintended rupture
#9Backflow preventing apparatus for water closets
#10Fluid circuit breaker quick disconnect coupling
#11Flushing device with removable drain ring for potable water systems
#12Mechanical fuse to seal pipes upon unintended rupture
#13Liquid blocking apparatus and system equipped with an alarm or wireless calling device and a storing bag
#14Backflow preventing apparatus for water closets
#15Pneumatic safety valve
#16Normally open reverse flow flapper valve