Blowback operated fluid valve
Blowout protector
Boost device bypass valve
Bottom drain valve construction
Brake and clutch control system
Butterfly valve
Butterfly valve with intra-shaft actuator means
Butterfly valve with servo-motor
Butterfly valves with actuators carried on valve plate
Bypass orifice and filter for diaphragm type flush valve
Bypass orifice filter for flush valve diaphragm
Cam actuated valve assembly with hydraulic spring
Cam regulated flow control valve
Cartridge check valve
Cartridge element control
Cartridge gate valve
Cartridge solenoid valve with manual override
Cascaded pneumatic impulse separation system and valves therefor
Ceramic valve structure with slow-descending device
Check valve