It's a 10-year-old equal-percent control valve. Installation and testing data is included in the accompanying graphics. The control valve outlet piping is around 2.0 m vertically upward, connecting to ...

Specifying Control Valves for Severe Service Severe service applications can be the bane of an automation engineer’s existence because they often have higher than necessary maintenance and repair ...

A well-designed J-T valve will provide consistently accurate positioning regardless of process changes over a long service life. Poorly designed J-T control valves are susceptible to excessive ...

Usually, the first step is determining the required valve characteristics, which describe the relationship between flow through the valve and the value of the control signal received by the valve ...

Filter regulator pressure drop is a common issue that affects the performance and stability of control valves. In this article, you will learn what filter regulator pressure drop is, how it ...

Its rangeability is 100:1, allowing control over a wide range of flows, so a plant can use the same control valve for all the facility's steam and fluid-control applications. There can be quite an ...

ISA recently published Fluid Mechanics of Control Valves: How Valves Control Your Process by Hans D. Baumann, Ph.D., PE — a world-renowned expert on control valve technology who is credited with more ...

Conventional Methods for Establishing Control Valve Pressure Drop In general industrial applications, control valve pressure drop has commonly been established by one of the three methods ...

The Elli-valve can be considered a derivative of the Giffard injector. This type of valve has not been used under geothermal conditions before. 2. A section view of the Giffard injector.