To incorporate speed control, a unidirectional flow regulator is installed between the 3/2 valve and the SAC. By adjusting the needle valve, precise control over the SAC’s speed can be achieved ...

Choked flow in control valves is a subject of serious concern for industrial users. The term is usually associated with destructive process conditions that can damage valve internals or expose ...

For many years, the author has used, and promoted the use of, control valve installed flow and gain graphs as part of the control valve selection process (references 1–3). For all those years, the ...