Control valves are used to manipulate flows in most control loops. Control valve selection and specification is critical to ...

A worksheet that calculates control valve installed gain can be part of any control valve selection process. For many years, the author has used, and promoted the use of, control valve installed flow ...

Helfer, W. - Emerson, Marshalltown, Iowa Wade Helfer is the Rotary Technologist at Emerson Automation Solutions for its Fisher rotary valves, and is responsible for developing and evaluating new ...

Choked flow in control valves is a subject of serious concern for ... or if there are concerns or questions about how to proceed with valve sizing or selection, contact valve vendors for technical ...