Bypass pipes, accompanied by a three-way control valve, are often seen in hydronic systems at both served loads (e.g., reheat coils) as well as at primary equipment (e.g., cooling towers). Reasons for ...

The trans-Alaska Pipeline System is still 100 percent full. The speed of oil flow, not the amount of oil in the 39-year-old pipeline, is the issue creating engineering challenges for Alyeska Pipeline ...

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 ...

In 2006, Exxon Mobil reversed the flow of its aging and idle Pegasus pipeline to benefit from the increasing production of Canada's bitumen oil and transport the thicker crude south from Illinois to ...

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 ...