TYPES OF VALVES USED IN INDUSTRIAL PIPING

Valves find use in a variety of industrial piping system applications. Typical applications include:

Preventing reverse flow (check valves)
Managing the flow of process fluids, including concentrated acids and bases
Redirecting flow from one line to another
Restricting flow for system balancing purposes
Controlling cooling rates to regulate temperature
Stopping flow during a system failure
Industry professionals employ a wide range of valves to fulfill the above functions, depending on the requirements and restrictions of their unique application. Some of the most common valve types used are:

Check valves have a disc, stem, or a similar moving part that closes if the flow reverses or stops.
Ball valves are the most common type of valve and feature a ball with a round hole in the center. When aligned with the pipe, the valve is ON. When turned 90°, it is OFF.
Diaphragm valves are used for precise flow control, especially when the media contains solids.
Flanged valves use bolts to secure the connection and a gasket to seal the joint.
Gate valves turn flow ON and OFF with a vertical disc that moves up and down.
Globe valves regulate flow with a disk that moves relative to a stationary ring seat.
Needle valves are similar to a globe valve, but they use a tapered plug for finer flow control.
Relief valves are safety valves that prevent excessive pressure buildup in the system.
Wafer valves in general have a smaller footprint in the system.

In addition to the valves listed above, there are many other types available, each of which is suitable for varying industrial applications.

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