Fail-safe actuator device
Fast closing well choke
Fast-closing stepping actuator for a valve member
Faucet for frozen carbonated beverage machine
Flow control valve
Foot-controlled water faucet
Gas cylinder valve
Gas operated valve actuator
Heat sensitive motor valve jack
Hydraulic and pneumatic operative diaphragm valve
Hydraulic double acting valve actuator
Hydraulic override
Liquid distribution valve
Lubricating valve for a pump
Manual actuator for motor driven control valve
Manual opening apparatus for a normally-closed valve
Manual override apparatus for linear actuators
Manual override system for linear magnetically operated valve
Mechanical override for a valve actuator
Metering valve assembly