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 ...

To define control valve inherent flow characterization and inherent rangeability, and to recommend allowable deviations from characterizations curves which are described mathematically or graphically.

The D03 Series of zero-leak directional valves are for use with most hydraulic pumps to maintain pressure for very long periods without replenishing the pressure supply, preventing the hydraulic ...

If you suddenly have the need for a two-way, flow control valve — from a valve-selection standpoint — what kind of questions do you ask yourself? Many, perhaps, don’t ask any questions and may make ...

A new nonsurgical technique to repair leaking mitral valves in heart failure patients was safe in a study reported in Circulation: Cardiovascular Interventions. In a small study that focused on ...

Known as the Rotary Drag valve, the new device represents a major step forward in valve engineering because it combines the best features of ball valves and control valves. Developers of the product ...

(Refiles to fix typo in fourth paragraph) HOUSTON, May 7 (Reuters) - BP has given up on efforts by underwater robots to close valves on a failed blowout preventer at the site of a massive oil leak in ...

HOUSTON (Reuters) - BP has given up on efforts by underwater robots to close valves on a failed blowout preventer at the site of a massive oil leak in the U.S. Gulf of Mexico, an executive said on ...