Adjustable throttle orifice plate
Hydraulic safety valve
Pneumatic safety valve
Check valve
Clamp connection (forging) plate valve
Mud valve
Thermal recovery valve
Hand, hydraulic valve
Liquid hand valve linkage
Stopcock
Fixed throttle
The cage type adjustable throttle
Wedge adjustable throttle
Simplified form hydraulic adjustable throttle
Needle adjustable throttle
FC valve (floating seat plate valve)
Rising stem valve plate
Gear plate valve
Flange connection (forging) plate valve
Ball screw driven valve
Ming plate valve stem with the end of the rod
An expansion valve (expansion valve plate can)
Hydraulic valve plate
