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INSTALLING VALVES 2010-12-01
It does depend on the type of valve and actuator. If you tell me what kind I can get specific.
Pressure Reducing & Relief Valve 2010-11-30
There is a formal answer and a less formal answer.Informally, if your only purpose is to test the performance of a pump and not to protect from overpressure failure
Various Pressure Ratings Vs Working Pressure/Testing Pressure 2010-11-30
Can help in giving the full working pressure for various pressure classes such as:
choke valve as PRV 2010-11-30
Just looking for thoughts on using a 'control choke' as a pressure reducing valve- max pressure expected to be 475 psi.
Hydropower from water mains 2010-11-29
If the water is pumped, any energy you extract with your generation would have to be supplied by the pumps.
Variable sped drive for a pump motor in a shower 2010-11-29
All energy regulatory bodies need to learn how to read a pump curve. As LionelHutz said, "energy savings guides showing VFD's as automatic energy savers are "stupid"", and so are the people who belie
Pressure Valve Chattering 2010-11-29
One of the main reasons I have found for chattering of a safety valve is improper line sizing. Specifically, the inlet line to the safety valve.
Excessive Pressure Drop in Pressure Reducing Valve 2010-11-26
Fisher 627WH pressure regulator, used in anhydrous ammonia service. This valve was originally going to see up to ~750 psig and drop it down to 300 psig
