Plug valve equipped with pressure equalization means
Pneumatic lift device for dual flow valve
Pressure balanced safety valve for wells and flow lines
Rapid opening valve for steam-operated power devices
Reset assembly for slam-shut valves
Safety trip valve for steam or gas turbines with means to assure
Sequential operating mechanism for valves
Servo butterfly valve and vane
Shut-off device
Shut-off device
Shut-off valve
Shutoff element for gaseous media with a device for damping self
Shutoff valve with a flap member
Shutter and gate valve assemblies for vacuum systems
Slide type exhaust brake system
Slide valve
Sliding exhaust brake system
Slurry gate valve
Soft seal poppet type check valve
Solenoid actuated valve