Actuating drive
Actuating valve
Actuator
Actuator for driving a valve
Actuator having dual piston surfaces
Adjustable pressure regulating solenoid valve
Adjustable proportional throttle-valve with feedback
Adjustable stroke solenoid operated cartridge valve
Adjustable throttle valve
Adjustment for piston-style flush valve
Aerator valve assembly
Air activated internal valve
Air blast device
Air blast device with improved ejection conduit
Air flow control valve
Air over hydraulics actuator system
Anti-hammer pilot operated valve with tortuous flow path between
Apparatus and method for reducing water use
Apparatus and method for reducing water use
Apparatus for controlling selectively engageable detents in a pi