site glass on above ground storage tank
site glass on above ground storage tank
(OP)
I have a flow problem involving a vented site glass on the suction side of a pump. The system consists of a 10,000 gallon vented AST piped into a distribution pump with 2" bcs pipe. I tee'd into this pump intake line with a piece of clear PVC thinking this measures the static pressure of that point so the height of the liquid in the site glass would be about the same as that in the 10,000 gallon tank at pumping conditions since the tee is only 2 feet downstream of the tank outlet and the frictional losses would be negligible. Instead the pump sucks the site glass dry. Where did I go wrong? I am thinking the answer to my dilemma involves transient analysis but I do not know too much about fluid mechanical transient analysis.





RE: site glass on above ground storage tank
RE: site glass on above ground storage tank
RE: site glass on above ground storage tank
BobPE
RE: site glass on above ground storage tank
RE: site glass on above ground storage tank
What are you pumping? I'd aim for a suction velocity in the range of 3 feet/sec and then check to see how much dP I'm taking over the suction piping before selecting a final size.
RE: site glass on above ground storage tank
It seems like you have a good understanding of whats going on now, glad we could help....
BobPE
RE: site glass on above ground storage tank
Hope this helps,
saxon