Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in the industry to regulate fluid flow in both on/off and throttling service.
Diaphragm valves are related to pinch valves, but use an elastomeric diaphragm instead of an elastomeric liner in the valve body to separate the flow stream from the closure element.
Butterfly sanitary valves are quick opening valves that consist of a metal circular disc or vane with its pivot axes at right angles to the direction of flow in the pipe that, when rotated on a shaft, seals against seats in the valve body. They are normally used as throttling valves to control flow.
Ball valves provide tight shut-off and characteristic control. They have high rangeability due to the design of the regulating element, without the complications of side loads typical of butterfly or globe valves.
Plug sanitary valves, also called cock or stop-cock valves, date back to ancient times, where they were developed for use in citywide Roman plumbing systems. Today, they remain one of the most widely used valves for both on/off and throttling services.
Also mixproof valve,seat valve,sample valve
