Types and characteristics of commonly used valves

butterfly valve

Butterfly valves use a disk to control the flow of fluid or gas. The disk is mounted on a shaft and when the handle is turned, the disk rotates 90 degrees to allow or block the flow of fluid or gas.

ball valves

Ball valves use a hollow, perforated and pivotable spherical disc to control the flow of fluid or gas. When the handle is turned, the disk controls the flow of fluid or gas by rotating 90 degrees.

Ball valves are used in a wide variety of industries for their high reliability, low maintenance and ability to handle high pressure and high temperature applications.

plug valve

Plug valves use a cylindrical or conical plug-shaped disc to control the flow of fluid or gas. The disc is rotated by turning a handle to allow or stop the flow of fluid.

gate

Gate valves control the flow of fluid or gas by means of a raised or lowered gated disc.

Typically used in high pressure and high temperature applications, gate valves are suitable for applications where reliable closure is essential.

stop valve

Globe valves control the flow of a fluid or gas by raising or lowering a plug-shaped disc perpendicular to the direction of flow.

Globe valves are typically used in applications where precise flow control is required.

diaphragm valves

Diaphragm valves control the flow of fluids or gases through the use of a flexible diaphragm located between the valve body and bonnet. As the handle is turned, the diaphragm is raised or lowered to allow or prevent flow.

clamp valve

Pinch valves control the flow of fluid or gas by squeezing a rubber tube or sleeve placed inside the valve body.

Pinch valves are typically used in application scenarios involving slurries, corrosive materials and abrasive fluids.

needle valve

Needle valves control the flow of a fluid or gas by means of a small, tapered needle-like disc.

Needle valves are typically used in applications that require precise flow control, such as laboratory or medical equipment.

check valves

Check valves are also known as one-way valves. They allow fluid or gas to flow in one direction while blocking flow in the opposite direction.

Check valves are usually used in piping systems to prevent backflow. There are different types of check valves such as swing check valves, lift check valves, axial flow check valves, micro resistance slow closing check valves, spherical check valves, and rubber flap check valves.

pressure reducing valve

Pressure relief valves protect piping systems from overpressurization by automatically relieving excess pressure.

Pressure reducing valves are typically used in application scenarios involving steam, gases or liquids.