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遇到如下问题不知该如何计算
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have some requests more about needle valves :
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9 c, s7 v$ h7 c. M6 A3 I1 – What is the hole diameter the needle valves needs for a flow rate of 2500 litres/hour with a pressure of 4.2 bars.; U, W3 B6 J: m, Z& ~
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2 – what is the flow rate for a hole diameter of 6.8mm with a pressure of 4.2 bars* D& r- o( d) }- ~; H
what is the flow rate for a hole diameter of 8mm with a pressure of 4.2 bars( h, x; t, M" Y) W8 ]! p+ n! x8 E' l
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1.压力为4.2BAR,CV值是2500L/H的情况下,孔径是多少。
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2.压力为4.2BAR,孔径为6.8MM,CV值是多少' @, P* [0 I [+ m/ f* ] a) F
$ }; Q) t, t) ?* w' M! N' S& ^ 压力为4.2BAR,孔径为8MM,CV值是多少
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& F. k' y8 ?4 E3 d" I1 i7 _& ][ 本帖最后由 userkypdy 于 2007-3-20 19:52 编辑 ] |
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