Oil field operators can use several practical equations for calculating flow rates of natural gas through venturi gas-lift valves. For critical flow, this analysis derived such equations from a ...

Too often, pneumatic circuits are sized based on the valve’s flow coefficient, C v, without considering other system components. In the past, focusing on the valve alone often sufficed because air was ...

One issue that designers of hydraulic position-control equipment often face is the low damping inherent in such systems — which usually consist of a hydraulic actuator, servovalve, position sensor, ...