Learning the basics can ease loop tuning frustration and ensure stability. During plant operations, it seems that tuning control loops is an ongoing task, which can be a continual frustration to ...

Pneumatic and hydraulic linear actuators operate on pressure differentials; electromechanical actuators are either linear motors or rotary types. Other differences abound. Mark Lemire, Product manager ...

The option makes possible more precise location of the drive unit reversal points, which is useful in linear motion applications where precision setting of the reversal points enhances process ...

Model RG linear drives feature a manual pitch control for a 10:1 adjustment of the drive’s linear pitch. Seventeen drive units are available, each having a specific maximum linear pitch (the linear ...

A worksheet that calculates control valve installed gain can be part of any control valve selection process. For many years, the author has used, and promoted the use of, control valve installed flow ...

Feedwater control valves play a critical role in boiler operation. One important parameter of their design is the pressure drop at the rated condition as well as off-design conditions. However, ...