Modified blades for process chamber throttle valve
Modified butterfly valve and assembly
Modular butterfly valve
Modular butterfly valve for tablets, capsules and the like
Noise attenuating device for butterfly valves
Obturator ring for butterfly valve
Offset butterfly valve
Outflow valve butterfly plate retention pin
Packing for the axis of a clack valve
Passage control device
Pin connection of a shaft to closure member of a rotary valve
Pipeline valve apparatus
Pivotal closing member
Pivotal flap
Plastic butterfly valve
Plastic throttle body
Plastic valve and improved actuator therefor
Positive fluid seal butterfly valve
Pressure actuated resilient valve seal
Pressure sensitive and temperature responsive rotary valve