Feb 27, 2021 · The proportional control valve can be considered as the combination of the hydraulic valve actuation and the electronic control. So basically a hydraulic valve that is …

Sep 18, 2023 · This article provides a comprehensive explanation of the fundamental workings of precision control thermal mass flow controllers.

Mar 12, 2025 · This article explains proper control valve sizing for efficiency, covering optimal Cv, oversized, and undersized valves, plus selection factors.

Jun 24, 2022 · On commanding for the quick close of the control valve the solenoid-operated valve closes the inlet port and blocks the incoming air coming from the smart positioner or …

Jun 24, 2025 · Step-by-step control valve datasheet preparation guide for EPC instrumentation engineers with downloadable Excel template and specification tips.

Mar 10, 2025 · This article introduces the Control Valve Sizing Calculation Worksheet, an essential Excel tool for accurately selecting valves in critical and sub-critical liquid flow …

Dec 27, 2015 · For example , a valve may be 75% open, not just 0% or 100% as with two-position control. The word “proportional” refers to the fact that there is a continuous relationship …

Mar 22, 2025 · This article provides insights into control valve performance, covering deadband, response time, gain, hysteresis, valve trim, flow capacity, fail-safe action, and leakage class.

Jul 9, 2025 · Learn how to troubleshoot control valve passing problems after overhauling with practical root cause analysis and field-proven solutions.

Mar 24, 2025 · This calculator performs control valve stroke length calculations for accurate flow control, troubleshooting, and calibration using 4-20mA signals.