Fitting Losses (K-Factor)
Calculate the pressure and head loss through valves, bends and fittings from their K-factors and the flow velocity, free online.
About this calculator
Minor loss h = K ยท vยฒ รท 2g and ฮP = K ยท ฯvยฒ รท 2. Typical K values: 90ยฐ elbow 0.9, gate valve (open) 0.2, globe valve 10, check valve 2, tee (branch) 1.8, sudden contraction 0.5, pipe exit 1.0. Add the K of each fitting in series.