Control Valve Rangeability vs Process Turndown: Verify the Real Operating Envelope
Understand why control valve inherent rangeability does not automatically guarantee process turndown. Verify minimum, normal and maximum flow, usable travel, installed characteristic and mechanical resolution.
How to Size a Control Valve: Cv, Kv, Flow Cases and Valve Travel
Learn how to size a control valve using minimum, normal and maximum flow conditions, Cv or Kv, pressure drop, predicted valve travel and severe-service checks.
Control Valve Selection Guide: Body Style, Trim, Actuator and Severe Service
A practical control valve selection guide covering body styles, pressure-temperature ratings, trim construction, severe-service risks, leakage classes, actuators, accessories and project inspection requirements.
Ball Valve Flow Control Issues: Diagnose, Repair or Reselect
Diagnose ball valve flow control issues using process data, valve condition and actuator feedback. Learn when to repair, tune or reselect the valve.