Valves can be categorized into the following types, based on their operating mechanism. Ball valve, for on/off control without pressure drop.Ideal for quick shut-off, since a 90° turn completely shuts-off, compared to multiple 360° turns for other manual valves.
Gate valve is a sliding type of valve. In gate valves, the closing member is a metal gate. The gate slides down to close the valve. In fully open conditions, the flow area is equal to the area of the pipe and hence, there is negligible pressure drop across the valve.
Types of valves: Gate valve, Globe valve, Fixed cone valve, Needle valve and Pinch valve. • Quarter-turn valve (rotary valve): The closure member as well its shaft turn 0º-90º; from the fully-open position to the fully-closed position.
Types of valves Artwork: Eight common types of valves, greatly simplified. Color key: the grey part is the pipe through which fluid flows; the red part is the valve and its handle or control; the blue arrows show how the valve moves or swivels; and the yellow line shows which way the fluid moves when the valve is open.
10 types of valves Gates – Gate valves are devices typically used in the wider sections of pipes to control the flow of heavy and solid liquids. They are designed specifically to control the opening and closing of liquid flow.
A ball valve is normally a rather large metal valve usually featuring a lever handle. It is designed for quick turn-off since the valve opens and closes full with a short 1/4 turn of the lever handle. This is the type of valve often seen at the main water shut-off for the home.
Some valves are designed specifically as control valves. However, most types of valves can be used as control valves, both linear and rotary motion, by the addition of power actuators, positioners and other accessories. more Latest News 7/17/2018 Emerson Completes Aventics Acquisition.
There are many types of valves available to accommodate a wide range of applications. GlobalSpec offers industrial buyers over 30 valve varieties, each with a unique method of control, function, or media application.
Depending on the type of valve, a disc can move linearly inside a valve, or rotate on the stem (as in a butterfly valve), or rotate on a hinge or trunnion (as in a check valve). A ball is a round valve member with one or more paths between ports passing through it.
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