surge relief valve

[drain]

Gere's my scenario: Water transfer pump. Static head on the system is about 395 feet, which we're pumping (VFD) against to deliver water to a tank some 1.4 miles away. Using a GA Industries 4" surge relief valve, low velocity of 5 fps (1650 usgpm), to be set to discharge to waste (may change this to discharge to suction). I'm going to set the valve to open at 10% higher than my system working pressure. I plan to set the surge relief valve to close just above my maximum static pressure to ensure I don't drain the tank. Does this sound reasonable? Any comments welcomed. Thanks.

 

[BobPE]

drain:

If that is what your surge analysis told you, you should be fine. To me, it would seem someone didn't do enough for you in the study. You do have a surge analysis?

If not invest in one. I have concerns with some of what you posted. Your system has a lot of energy, which could be very dangerous if not addressed correctly. You are right in anticipating surge relief....The extra step of an analysis wont cost that much.

BobPE

 

[stanier]

Look at AFT's Impulse at

http://www.Impulse.com

as a package.

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