An excess-flow safety shut-off device
An improved ball valve faucet
An improved by-pass and pressure regulator valve
An improved flow, axially-rotated, split venturi valve
An improved structure of a ball valve especially used in food
An improved structure of a flexible water tap
An improved thermostatic mixer device for sanitary use
An inflatable, flexible device for use as an expandable...
An inflation valve for sacks, bags or the like containers
An outflow regulator for a gravity-fed liquid outlet
An outflow regulator for a gravity-fed liquid outlet
Analog displacement type electromagnetic valve
Anchor valve for security
Angle cock device
Angle cock device
Angle cock device
Angle cock improvements
Angle cocks
Angle cocks
Angle cocks with vent valves