Hi,

Do the minor losses for valves require the K resistance coefficient? Wanted some clarification of K and Kv (flow coefficient) and Cv which I'm pretty sure is imperial.

I've got these conversion formulas:

K_{v}=0.865C_{v }K=0.001604x(d^{4}/K_{v}^{2}) Diameter in millimetres.

Cliff Dredge.