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Pipe Fittings: Valve, Plug valve, straight through

Pipe fittings loss coefficients — Darby 3K method K-factors for elbows, tees, valves, and other fittings

Civil Engineeringfitting type: Valve, Plug valve, straight through1 row
fitting typeK1 (dimensionless)K ref (dimensionless)Kd (dimensionless)Ki (dimensionless)categorydescription
Valve, Plug valve, straight through3000.3530943.90.084ValveDarby 3K: K = 300.0/Re + 0.084*(1 + 3.9/D^0.3)

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