August 2021 Choked Flow in Control Valves Choked Flow in Control Valves By Katherine Bartels, Adam Harmon Summary Choked flow in control valves is a subject of serious concern for industrial users.

Watch on Pressure-compensated flow control valves are designed to provide a constant volume flow rate independent of the pressure drop across the valve. By contrast, non-pressure-compensated valves ...

Restrictive flow regulators work like an automatic variable orifice to control flow by throttling or restricting. Compensator spool movement blocks fluid flow through the valve.

An in-line flow-control switch features both a female and a male luer lock. Consisting of a polycarbonate body and an acetal slider that acts as an on-off switch, the high-pressure 97337 switch can be ...

Valve rangeability is often stated as simply a deviation of the catalog flow characteristic from the theoretical characteristic. Here we will see how the consideration of the changes in process ...

Stan: Split-range control valves add a complication that is often not addressed. Robert, what is an example of how you have improved split-range control? Robert: I had a fuel gas application where the ...

In this method, attributed to F.C. Yu, the control valve in a pumped application is assigned a minimum pressure drop at maximum design flow rate and maximum 80% control valve open position ...

The valve size and trim should match the required flow range, turndown ratio, and accuracy of the process. A mismatched valve can cause excessive noise, vibration, wear, leakage, or instability.

1. Flow-to-open cutaway. Control valves equipped with noise-abatement trim, such as a drilled-hole cage or a tortuous path stack, are typically oriented in the flow-to-open direction.

Choked Flow in Control Valves Choked flow in control valves is a subject of serious concern for industrial users. The term is usually associated with destructive process conditions that can damage ...