I am needing to do the following functions with the avalibility of a single dc motor: evenly lift pair of cylinders with even loads,simultaneously, lift and gravity lower each cylinder independently w

A supplier brought to my attention that I had an unusually high velocity going through a check valve in a PS design I was working on...

I'm looking for a particular type of valve, and am having a lot of difficulty in doing so...hoping you folks can help.

We are investigating the use of a swing check valve to control reverse flow at an air compressor inlet. A swing check valve was chosen to minimize flow restriction.

What should be the air fail action for depressuring valves installed, or nominated, to avoid a BLEVE when fire surrounds a pressure vessel?

Could anyone provide information or a source for "universal pipe flanges"?

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I am reviewing the retrofitting of remote electrical transformer substations for compliance with the SPCC rules and have a couple of questions.