Precise Process Control System control with Valves


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Some process control system’s control loops require highly accurate control in the face of severe disturbances. Ideally the control valve should have low friction, no backlash, and a stable flow pattern.

Precise Process Control System control with Valves

• Rotary valves, such as high-performance butterfly and plug valves employing low friction bearings and packing’s provide good control.

• Ball valves have large backlash and are not recommended.

• Linear motion valves, such as globe valves cannot match the low friction of rotary valves and must be critically evaluated.