Ball valves

What is a Ball valve?

Ball valves, shut off valves or switch valves are valves that normally block or direct  gases and liquids flows. Ball valves are mechanical valves with two or more ports, one port for fluid to enter and the other for fluid to exit the valve. In a multiport Ball valve one common port is the inlet of the valve, the flow will be directed to one of the other ports by turning the handle of the valve which rotates the ball inside of the Ball valve. A seat seals onto the Ball internally in the Ball valve to seal cross ports in switched position.  Actuated ball valves include: Manual ball valve, Pneumatic, Hydraulic and Electric actuated ball valves.

Types of Ball valves

Most popular Ball valve types are: Two way ball valve, 3 way switching ball valve, Change over ball valve, diverting ball valve and switching ball valve. A full bore Ball valve is a valve in which the port in the ball is the same size as that of the fluid line in which it is connected to. The benefit is lower friction and unrestricted flow of fluids and gases. A reduced bore Ball valve is a valve in which the port of the ball is smaller in size than the valve's fluid line size resulting in smaller flow than the connected fluid line

How to select Ball Valves?

Ball valves can be selected and sized for the application by functionality, body, seat and seal material compatibility with the medium, flow capacity, maximum set pressure, set pressure range, maximum working pressure, maximum temperature, minimum temperature, line size and end connection type (flange, nominal pipe thread , tube fitting) and check valve design.  special requirements for hydrogen ball valves, CNG ball valves, oxygen ball valves, NSF Ball valves, NACE Ball valves, NORSOK Ball valves, LNG Ball valves, etc. For automated ball valves the torque of switching the valve should be taken in account to comply with the force of the actuator.

Learn more about the selection of valves:  How to select valves?

Ball valve applications

Ball valves are integral components in piping and instrumentation systems and are used in frequent on-off service and to direct or control the flow of fluid processes. NACE compliant ball valves in oil & gas applications comply to NACE material requirements. Ball valve applications include sample systems, mechanical seal systems, air compressors, gas compressor stations, steam lines, condensate lines, chemical process and instrumentation applications, cryogenic applications and many more.

Find Ball valve Suppliers and manufacturers

Ball valve suppliers & manufacturers can be found by name in our product supplier directory and by selection of product category and sub category the product search filter (shown above).

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