Process Control

In order to determine the Flow Rate represented as Q, we must define both the volume V and the point in time it is flowing past represented by t, or Q = V/t.  Additionally, Flow rate and velocity are related by the equation Q = Av where A is the cross-sectional area of flow and v is its average velocity.

The Prism PI integrates an advanced position sensing system and integral pneumatic control for sanitary diaphragm and other linear applications. Compact and durable, the PI is suited for corrosive, heavy washdown, and hazardous areas.

Selecting a valve with the correct flow characteristic (the relationship between valve opening and flow capacity) can be as important as the selection of the valve size.

Standard fluid line systems were for many years constructed from threaded pipe of assorted materials and were assembled with various standard pipe fitting shapes.

At times a process engineer must choose between a pneumatically or electrically actuated valve for a system. There are advantages to both styles, and it is valuable to have data available to make the best choice.

Most pump problems are due to suction issues.

Techniques & considerations for properly sizing control valves