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Ball valve is a shut-off pipeline fitting designed to stop the flow. Ball valves are named after the spherical shape of the valve element, which has a hole through the center to allow for the passage of the working medium. In the open position, the axis of the hole coincides with the axis of the pipeline, and by turning the ball 90° around the axis perpendicular to the pipeline axis, the valve is closed.
The universal design of ball valves allows them to be used with almost any working media, including water, steam, compressed air, gas, petroleum products, viscous and abrasive media. All threaded ball valves that you will find in our catalog can be used for water, but the possibility of using them with other media should be clarified with the suppliers.
Despite the fact that the ball valve design has been known for over 100 years, they have gained wide popularity only with the advent of polymer materials such as PTFE, the sealing rings of which are capable of providing sealing of the valve closure. Currently, threaded ball valves are widely used in heating and water supply systems, almost completely replacing gate valves, cork valves, and valves.
Threaded ball valves are installed on pipelines with a nominal diameter of DN50 or less, transporting a working medium with a temperature of up to 100°C and a pressure not exceeding 16 bar. In other cases, welded, flanged, and intermediate flanged ball valves are used.
Long-term operation of the ball valve at partial opening of the valve is not allowed, since the abrasive wear of the ball can lead to a loss of sealing of the flow closure.
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