Emerson Exchange 365

Tip #10: Butterfly Valves and/or Ball Valves with Positioners Are Not Control Valves

One of the more heated arguments I had with a client involved his extreme desire to use line size butterfly valves for controlling his process. The entire concept of using control valves for the available pressure drop and for controllability at low flow rates was utterly lost on him. We went round and round until [...] Read the full text.

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