Control valves are power-operated devices used to automatically modify fluid flow or rate pressure in a process system. The terms 'control valve' and 'throttling valve' are often used interchangeably ...

This subcommittee will provide a forum in which to determine and evaluate the fundamental cavitation problems in control valve applications, to establish methods for evaluating the potential for ...

Ball valves are quarter-turn, straight-through valves that have a round closure element with matching rounded seats that permit uniform sealing stress. The valve gets its name from the ball that ...

Cognitive control is the process by which goals or plans influence behaviour. Also called executive control, this process can inhibit automatic responses and influence working memory. Cognitive ...

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 ...

Mechanical valves last longer, but blood can clot on them. A patient may need long-term medication that prevents blood clots developing. Biological valves are more likely to wear out.