Check Valves, Their Types And Uses

The ball check valve is the most popular check valve in the market. These special valves are spring-loaded, which helps to keep the valve closed. These valves are usually small and inexpensive, which is why they are so commonly used. 

One Way Check valves work in a variety of pipes used to transport liquids, gases or liquids or store in separate pipes. This valve allows the release of content in only one direction. 

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Because they are used in various types of industry they are manufactured in carbon steel, alloy steel or stainless steel. Depending on the size of the pieces that are needed in the pipeline.

The most important criteria to consider in installing the valve in the pipeline is the cracking pressure. It is the pressure which opens the valve so choosing the right fit for the pipe is very important. It is used where there is a need for:

– Prevents the reverse flow of liquid or gas contents present in the pipe system.

– Shield other components of the pipe from damage by blocking any flow back.

– To thwart the flow by gravity or pressure variations.

Generally, there follows the check valve type:

Stop C V: Type Valve is designed to cut off the supply of fluids, water, oil or gas regardless of the direction of flow. Stop valves can stop the flow of content regardless of external pressures.

Ball C V: Has a round metal ball to cut-off the flow. It is used in pipe systems that carry a gel or liquid contents. 

Lift-C V: The valve disc is lifted to facilitate the flow of liquid. The valve closes when the pressure subsides.

Diaphragm C V: Has a flexible diaphragm valve that open or close depending on the flow and pressure in the pipeline.

The valve is a large category and is most often used in chemical, water, oil and gas, power, pulp, and paper industry. They are also used in dry pipe fire suppression systems such as a fire sprinkler system.