When a control valve or manual valve is shut fast in a full pipeline of moving liquid, the liquid comes to a sudden stop. If the pipe suddenly starts banging and thrashing about you can be sure a water hammer was created.  [Read more…]

Valves can be used to both isolate and regulate liquid and gas flow.

Valve used for isolation duties must provide secure, tight shut-off. Consideration must be given to the nature of the process chemical, the quality of sealing and the impact of outside environmental occurrences.

Keywords: bubble tight, design pressure, leakage rate, fire rated, differential pressure. [Read more…]