Equipment designers find that proportional control technology is ideal where precise performance is required in variable pressure or flow applications. Often perceived as more complicated than other ...

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, ...

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 ...

An oscillating control valve may appear to be the source of control instability and repair efforts are usually focused only there. When this fails to solve the issue, further investigation often ...

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 ...

ATLANTA — Facility managers will benefit from more precise hot water flow in their zoning reheat systems using the new OptiPoint™ smart valves from Automated Logic Corporation (ALC). The valves ...

• Valve terminals have evolved into integrated automation platforms. • Capabilities include control of pneumatic and electric drives, sensing, and motion control. Today, OEMs of all stripes strive to ...