Need flow rate calculation for telescoping valve
Need flow rate calculation for telescoping valve
(OP)
We have a 24 inch telescoiping valve with a maximum head differential of 3'-3". I would like to find a calculation or chart that We can use to estimate the flow rate at various differentials.





RE: Need flow rate calculation for telescoping valve
RE: Need flow rate calculation for telescoping valve
RE: Need flow rate calculation for telescoping valve
You will have to estimate the flow using the orifice equation with assumptions on pipe size, etc.
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RE: Need flow rate calculation for telescoping valve
E&S pond designers use a riser pipe for spillways. There is a good explanation in Section 13.6.10 (pg 41 in the link). It may give a procedure you can use.
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The sticking point will be the transition between the flow regimes. It is not well defined so you will have to use your best judgement there.