Custom Elbow K Factor 90 0.591 0.787 0.984 1.260 1.575 1.969 23.622 2.10 1.70 1.50 1.30 1.20 1.00 1.00 D >= 0.58 && D <= 24 && Theta == 90 Regular Threaded 45, 90 and 180 Elbow 45 90 180 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 0.38 0.37 0.35 0.34 0.33 0.32 0.31 0.30 0.29 0.28 2.5 2.1 1.7 1.5 1.3 1.2 1.0 0.85 0.80 0.70 2.5 2.1 1.7 1.5 1.3 1.2 1.0 0.85 0.80 0.70 D >= 0.375 && D <= 4.0 && Theta >= 45 && Theta <= 180 Long Radius Threaded Elbow 90 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 0.92 0.78 0.65 0.54 0.42 0.35 0.31 0.24 D >= 0.75 && D <= 4.0 && Theta == 90 Regular Flanged 90 and 180 Elbow 90 180 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 0.43 0.41 0.40 0.38 0.35 0.34 0.31 0.29 0.27 0.25 0.24 0.43 0.41 0.40 0.38 0.35 0.34 0.31 0.29 0.27 0.25 0.24 D >= 1.0 && D <= 12.0 && Theta >= 90 && Theta <= 180 Long Radius Flanged 45, 90 and 180 Elbow 45 90 180 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 0.22 0.22 0.21 0.20 0.19 0.18 0.18 0.17 0.17 0.16 0.16 0.41 0.37 0.35 0.30 0.28 0.25 0.22 0.18 0.16 0.14 0.13 0.43 0.38 0.35 0.30 0.27 0.25 0.22 0.18 0.15 0.14 0.13 D >= 1.0 && D <= 12.0 && Theta >= 45 && Theta <= 180 Regular 45, 90 and 180 Elbow 45 90 180 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 24.0 0.43 0.40 0.37 0.35 0.34 0.30 0.29 0.29 0.27 0.24 0.22 0.22 0.21 0.21 0.21 0.19 0.19 0.19 0.81 0.75 0.69 0.66 0.63 0.57 0.54 0.54 0.51 0.45 0.42 0.42 0.39 0.39 0.39 0.36 0.36 0.36 1.35 1.25 1.15 1.10 1.05 0.95 0.90 0.90 0.85 0.75 0.70 0.70 0.65 0.65 0.65 0.60 0.60 0.60 D >= 0.5 && D <= 24.0 && Theta >= 45 && Theta <= 180 Long Radius Elbow 90 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 24.0 0.43 0.40 0.37 0.35 0.34 0.30 0.29 0.29 0.27 0.24 0.22 0.22 0.21 0.21 0.21 0.19 0.19 0.19 D >= 0.5 && D <= 24.0 && Theta == 90 Custom Welded Tee 0.1 8.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -0.1625 -0.12 -0.085 -0.05 -0.015 0.02 0.05 0.075 0.105 0.135 -0.1625 -0.12 -0.085 -0.05 -0.015 0.02 0.05 0.075 0.105 0.135 FlowConfig == A && FlowType == Converging && Db / Dc >= 0.3 && Db / Dc <= 1.0 && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -0.0375 -0.0175 -0.0025 0.0125 0.0275 0.0375 0.0425 0.04 0.03 0.015 FlowConfig == A && FlowType == Converging && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 8.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0225 0.065 0.1125 0.14 0.1375 0.1175 0.0975 0.0925 0.1225 0.2 0.0225 0.065 0.1125 0.14 0.1375 0.1175 0.0975 0.0925 0.1225 0.2 FlowConfig == B && FlowType == Converging && Db1 / Dc >= 0.5 && Db1 / Dc <= 1.0 && Qb1 / Qc >= 0 && Qb1 / Qc <= 1.0 && Theta == 180 0.3 0.44 0.52 0.59 0.66 0.74 1.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.2325 0.205 0.185 0.1675 0.155 0.15 0.1525 0.16 0.17 0.185 0.2325 0.205 0.185 0.1675 0.155 0.15 0.1525 0.16 0.17 0.185 FlowConfig == A && FlowType == Diverging && Db / Dc >= 0.3 && Db / Dc <= 1.0 && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1125 0.0875 0.065 0.045 0.0275 0.015 0.0075 0.0025 0.005 0.015 0.1125 0.0875 0.065 0.045 0.0275 0.015 0.0075 0.0025 0.005 0.015 FlowConfig == A && FlowType == Diverging && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.6 2.0 0.16 0.16 0.1575 0.16 0.1675 0.1775 0.1925 0.21 0.2375 0.275 FlowConfig == B && FlowType == Diverging && Vb1 / Vc >= 0.1 && Vb1 / Vc <= 2.0 && Theta == 180 Custom Threaded Tee 0.1 8.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -0.055 -0.015 0.025 0.0675 0.1075 0.1475 0.185 0.22 0.25 0.275 -0.055 -0.015 0.025 0.0675 0.1075 0.1475 0.185 0.22 0.25 0.275 FlowConfig == A && FlowType == Converging && Db / Dc >= 0.3 && Db / Dc <= 1.0 && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1075 0.12 0.1275 0.13 0.13 0.125 0.115 0.1 0.08 0.0575 FlowConfig == A && FlowType == Converging && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 8.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0225 0.065 0.1125 0.14 0.1375 0.1175 0.0975 0.0925 0.1225 0.2 0.0225 0.065 0.1125 0.14 0.1375 0.1175 0.0975 0.0925 0.1225 0.2 FlowConfig == B && FlowType == Converging && Db1 / Dc >= 0.5 && Db1 / Dc <= 1.0 && Qb1 / Qc >= 0 && Qb1 / Qc <= 1.0 && Theta == 180 0.1 8.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.185 0.1725 0.1575 0.155 0.1575 0.1625 0.175 0.19 0.2075 0.225 0.185 0.1725 0.1575 0.155 0.1575 0.1625 0.175 0.19 0.2075 0.225 FlowConfig == A && FlowType == Diverging && Db / Dc >= 0.3 && Db / Dc <= 1.0 && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0625 0.045 0.0325 0.02 0.01 0.005 0.005 0.0125 0.03 0.0525 FlowConfig == A && FlowType == Diverging && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.16 0.16 0.1575 0.16 0.1675 0.1775 0.1925 0.21 0.2375 0.275 FlowConfig == B && FlowType == Diverging && Vb1 / Vc >= 0.1 && Vb1 / Vc <= 2.0 && Theta == 180 Threaded Tee 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 D >= 0.375 && D <= 4.0 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 2.7 2.4 2.1 1.8 1.7 1.6 1.4 1.3 1.2 1.1 D >= 0.375 && D <= 4.0 Flanged Tee 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 0.26 0.25 0.23 0.20 0.18 0.17 0.15 0.12 0.10 0.09 0.08 D >= 1.0 && D <= 12.0 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 1.0 0.95 0.90 0.84 0.79 0.76 0.70 0.62 0.58 0.53 0.50 D >= 1.0 && D <= 12.0 Tee 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 24.0 0.54 0.50 0.46 0.44 0.42 0.38 0.36 0.36 0.34 0.30 0.28 0.28 0.26 0.26 0.26 0.24 0.24 0.24 D >= 0.5 && D <= 24.0 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 24.0 1.62 1.50 1.38 1.32 1.26 1.14 1.08 1.08 1.02 0.90 0.84 0.84 0.78 0.78 0.78 0.72 0.72 0.72 D >= 0.5 && D <= 24.0 Converging/Diverging Tee/Wye FlowConfig == A && FlowType == Converging && Theta >= 30 && Theta < 90 && Qc > 0.0 FlowConfig == A && FlowType == Converging && Theta >= 30 && Theta <= 90 && Qc > 0.0 FlowConfig == A && FlowType == Converging && Theta == 90 && Qc > 0.0 FlowConfig == A && FlowType == Diverging && Theta >= 0 && Theta <= 90 && Db / Dc <= 1.0 && Qc > 0.0 FlowConfig == A && FlowType == Diverging && Qc > 0.0 Converging/Diverging/Side Tee 0.3 0.44 0.52 0.59 0.66 0.74 1.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -0.50 2.97 9.9 19.7 32.4 48.8 66.5 86.9 110 136 -0.53 0.53 2.14 4.23 7.3 11.4 15.6 20.3 25.8 31.8 -0.69 0 1.11 2.18 3.76 5.90 8.38 11.3 14.6 18.4 -0.65 -0.09 0.59 1.31 2.24 3.52 5.20 7.28 9.23 12.2 -0.80 -0.27 0.26 0.84 1.59 2.66 4.00 5.73 7.40 6.60 -0.88 -0.48 0 0.53 1.15 1.89 2.92 4.00 5.36 6.00 -0.65 -0.40 -0.24 0.10 0.50 0.83 1.13 1.47 1.86 2.30 FlowConfig == A && FlowType == Converging && Db / Dc >= 0.3 && Db / Dc <= 1.0 && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.70 0.64 0.60 0.65 0.75 0.85 0.92 0.96 0.99 1.00 FlowConfig == A && FlowType == Converging && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.5 0.71 0.87 1.00 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 17.0 12.7 9.30 6.92 5.48 5.00 5.48 6.92 9.32 12.7 17 5.02 3.94 3.10 2.50 2.14 2.00 2.14 2.50 3.10 3.94 5.00 2.78 2.30 1.92 1.66 1.50 1.57 1.56 1.66 1.92 2.30 2.78 2.00 1.73 1.52 1.37 1.28 1.25 1.28 1.37 1.52 1.73 2.00 FlowConfig == B && FlowType == Converging && Db1 / Dc >= 0.5 && Db1 / Dc <= 1.0 && Qb1 / Qc >= 0 && Qb1 / Qc <= 1.0 && Theta == 180 0.3 0.44 0.52 0.59 0.66 0.74 1.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 2.80 4.50 6.00 7.88 9.40 11.1 13.0 15.8 20.0 24.7 1.41 2.00 2.50 3.20 3.97 4.95 6.50 8.45 10.8 13.3 1.37 1.81 2.30 2.83 3.40 4.07 4.80 6.00 7.18 8.90 1.10 1.54 1.90 2.35 2.73 3.22 3.80 4.32 5.28 6.53 1.22 1.45 1.67 1.89 2.11 2.38 2.58 3.04 3.84 4.75 1.09 1.20 1.40 1.59 1.65 1.77 1.94 2.20 2.68 3.30 0.90 1.00 1.13 1.20 1.40 1.50 1.60 1.80 2.06 2.80 FlowConfig == A && FlowType == Diverging && Db / Dc >= 0.3 && Db / Dc <= 1.0 && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.70 0.64 0.60 0.57 0.55 0.51 0.49 0.55 0.62 0.70 FlowConfig == A && FlowType == Diverging && Qb / Qc >= 0.1 && Qb / Qc <= 1.0 && Theta == 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.6 2.0 1.0 1.01 1.03 1.05 1.08 1.11 1.15 1.19 1.24 1.30 1.43 1.59 1.77 2.2 FlowConfig == B && FlowType == Diverging && Vb1 / Vc >= 0.1 && Vb1 / Vc <= 2.0 && Theta == 180 Reducer/Coupling/Union/Increaser 1.0 1.25 1.5 1.75 2.0 2.25 2.5 2.75 3.0 3.25 3.5 3.75 4.0 0.0 0.2 0.28 0.33 0.37 0.39 0.40 0.41 0.42 0.43 0.43 0.44 0.44 D1 > D2 && D1 / D2 <= 4.0 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 0.2 0.15 0.1 0.09 0.08 0.07 0.06 0.05 0.05 0.04 D1 == D2 && D1 <= 4.0 && D1 >= 0.375 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 0.0 0.18 0.4 0.675 0.9 1.05 1.1 1.125 1.1 1.075 1.06 1.05 1.045 1.035 1.025 1.015 1.01 1.005 1.0 D1 < D2 && Theta < 180 D1 < D2 && Theta == 180 Contracting/Enlarging Transition D1 <= D2 && Theta <= 45 D1 <= D2 && Theta > 45 && Theta <= 180 D1 > D2 && Theta <= 45 D1 > D2 && Theta > 45 && Theta <= 180 Globe Valve Threaded 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 20 14 10 9 8.5 8 7 6.5 6 5.7 D <= 4.0 && D >= 0.375 Globe Valve Flanged 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 13 12 10 9 8 7 6.5 6 5.7 5.7 5.7 D <= 12.0 && D >= 1.0 Gate Valve Threaded 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 0.40 0.33 0.28 0.24 0.22 0.19 0.17 0.16 0.14 0.12 D <= 4.0 && D >= 0.375 Gate Valve Flanged 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 0.34 0.27 0.22 0.16 0.10 0.08 0.06 0.05 D <= 12.0 && D >= 2.0 Swing Check Valve Threaded 0.375 0.5 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 8.0 5.5 3.7 3.0 2.7 2.5 2.3 2.2 2.1 2.0 D <= 4.0 && D >= 0.375 Swing Check Valve Flanged Angle Valve Threaded 0.75 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.1 4.6 3.6 2.9 2.1 1.6 1.3 1.0 D <= 4.0 && D >= 0.75 Angle Valve Flanged 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 4.8 3.7 3.0 2.5 2.3 2.2 2.1 2.1 2.1 2.1 2.1 D <= 12.0 && D >= 1.0 Ball Valve Full Port Full Open 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 0.1 0.09 0.085 0.08 0.075 0.07 0.06 0.05 0.045 0.045 0.04 D <= 12.0 && D >= 1.0 Ball Valve 25 Reduced Port Full Open 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 0.14 0.13 0.12 0.11 0.10 0.09 0.08 0.07 0.065 0.06 0.055 D <= 12.0 && D >= 1.0 Butterfly Valve Full Open 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 4.0 3.5 3.0 1.5 1.0 0.08 0.07 0.06 D <= 12.0 && D >= 2.0 Foot Valve D <= 12.0 && D >= 1.0 Basket Strainer 1.0 1.25 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0 12.0 2.0 1.8 1.6 1.5 1.4 1.3 1.1 0.9 0.75 0.65 0.5 D <= 12.0 && D >= 1.0 Bell Mouth Inlet or Reducer FlowDirection == Out Square Edged Inlet FlowDirection == Out Inward Projecting Pipe FlowDirection == Out Outlet FlowDirection == In