Back flow preventer
Backflash interrupter
Backflow preventer
Backflow preventer and relief valve assembly
Backflow prevention apparatus
Backflow prevention devices
Baffle mechanism and insert unit for downspout
Balanced valve with unidirectional oleo-dynamic unlocking, in pa
Balancing valve assembly of a cold and hot water mixing valve
Bidirectional piston valve
Bleed control apparatus for a fluid conveying system
Boiler low water level sensing device
BOP operating system with quick dump valve
BOP operating system with quick dump valve
Brake velocity fuse
Breathing valve
Bulk catalyst proportioner
Burner scavenging valve
Burnproof device of triple/double switch combination faucet
Butterfly type two-way check valve for an automatic transmission