Secondary air control and check valves
Secondary backseat for gate valve
Self alignable threaded cap and threaded pressure relief valve
Self-cleaning valve for regulating the flow of liquid in irrigat
Shut-off valve for fluids
Slip thread adjustable in-line valve for sterile fluids
Slit valve for a semiconductor processing system
Solenoid valve in a hydraulic brake system for motor vehicles
Stop valve for gas tank
Stop-check valve