Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow.
MKS Instruments is a leading worldwide provider of instruments, components, subsystems and process control solutions that measure, control, power and monitor critical parameters of advanced manufacturing processes such as semiconductor device manufacturing; thin-film manufacturing for flat panel... (more)
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