Valve Types Volumes Two
valves play a critical role in managing the flow of gases, liquids, and solids in a variety of different applications. valves are designed and constructed in various forms and styles to meet specific requirements. in this article, you will learn about a variety of valve types and their respective applications.
Ball Valves
Ball valves are a type of quarter-turn valve that opens and closes by means of a rotation of a ball with a hole drilled through its center. when the ball in the valve is aligned with the flow of material, it is in an open position. when the ball is rotated perpendicular to the flow of material, it is in a closed position. Ball valves are best suited for applications requiring the full open or full closed flow and can handle a variety of fluids.
Butterfly Valves
Butterfly valves are rotational valves that open and close by the use of a disc within the valve itself. the valve is opened and closed by rotating a handle or wheel and the rotation causes the disc to rotate, thus opening and closing the flow. butterfly valves are best suited for applications that require low-pressure fluctuation and minimal resistance when opening and closing.
Check Valves
Check valves are a type of mechanical valve that is used to regulate the flow and pressure of a system. the main function of a check valve is to allow the flow of material in one direction and prevent the reverse flow of material from occurring. check valves are best suited for applications where pressure needs to be maintained and the flow needs to be in a single direction.
Diaphragm Valves
A diaphragm valve is a type of valve that is sealed by means of a flexible diaphragm. the parts of the valve are separated by the diaphragm which is held in place by a combination of pressure and suction. diaphragm valves are best suited for applications that require the flow of liquids or gases without contamination or cross-contamination.
Globe Valves
Globe valves are a type of linear motion valve that utilizes a spherical shaped disk that is attached to the stem by a link system. the disk is able to move along the axis of the stem and thus control the flow of material in the line. globe valves are best suited for applications that require a wide range of flow control from zero to full flow.
Gate Valves
Gate valves are a type of linear motion valve that utilizes a gate, wedge, or parallel gate that is raised and lowered to regulate the flow of material in the line. gate valves are best suited for applications that require a large degree of flow control and isolation of the line.
Needle Valves
Needle valves are a type of linear motion valve that has a needle-shaped component that can be raised and lowered to control the flow of material in the line. needle valves are best suited for applications that require precise control of the flow and where minimal resistance is desired.
Pinch Valves
Pinch valves are a type of valve that utilizes a flexible body that can be pinched together or released to control flow. the fact that the body of the valve is flexible makes it very resistant to wear and tear, making them a great choice for applications that require long service life.
Plug Valves
Plug valves are a type of rotational valve that utilizes a rotating plug to control the flow of material in the line. plug valves are best suited for applications that require minimum resistance when the valve is opened and closed, and that require moderate to low pressure.
Swing Check Valves
Swing check valves are a type of check valve that utilizes a disc with a weight attached to the hinge that allows the disc to swing with the flow of material and will close when the flow is reversed. swing check valves are best suited for applications that require a tight seal even when the flow is reversed.
These are just some of the valve types available. there are many more types, such as solenoid valves, rising stem valves, foot valves, and others. No matter what type of valve you are looking for, there is sure to be one that meets your specific needs.
