Back pressure control valve
Back seating valve with service port
Back-seating of rotary valve stem
Back-up seal for diaphragm valve
Backflow-preventing valves for injection-molding machines
Backseat assembly for an expanding gate valve
Backwash flow control valve
Bag and box valve system
Bag closing apparatus
Bag diaphragms and bag diaphragm operated air dampers
Bag valve
Bakeable vacuum systems
Balance valve disc and seat structure
Balanced fluid control valve
Balanced plug valve
Balanced relief valve with novel seal
Balanced retention valve
Balanced solenoid valves
Balanced stem fail-safe valve system
Balanced stem fail-safe valve system