Ball valves
Ball valves
Ball valves are mainly used to switch flows on or off. The advantages of the ball valve are the gas-tight shut-off, the low pressure drop and the simplicity of automation. The valve is common in the process industry and is available in sizes up to DN200. The most common size range is DN15-80.
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Asahi ball valve type 21 DN10-100
Richter PFA/PTFE lined ball valve type KN/F
Asahi three-way ball valve type 23BV DN15-100
Asahi three-way ball valve type 23HBV DN25-40
Asahi ball control valve type 21a DN15-50
Asahi pneumatic ball valve type 21AR DN15-100
How do ball valves work?
A ball valve closes and opens a flow by rotating a ball with a through hole a quarter turn between two annular valve seats made of a preferably soft-sealing material such as PTFE. This type of valve is best suited to completely shut off or turn on the flow, so-called on/off function, but some variants allow the flow to be regulated and adjusted. There are several connection options: flange, weld-thread or glue connection. The valve type is best suited for on/off function, but is available in versions for regulation and adjustment. Ball valves are operated by actuator, hand gear or lever.
Finally, there are variants with multiple connections such as 3-way ball valves. They are used when you need to redirect a flow and the ball can be T- or L-bore.
Lyma provides a wide range of ball valves in different designs and materials. This means we have a solution for the vast majority of corrosive applications.