The handbook of Technical irrigaTion informaTion - Hunter Industries

Handbook of Technical Irrigation InformationFlowGPMPressure Loss Through Swing Check ValvesPressure Loss (PSI)Valve SizeValve SizeFlow½" ¾" 1" 1¼" 1½" 2" GPM 1¼" 1½" 2" 2½" 3" 4"2 0.2 46 2.1 1.1 0.43 0.5 48 2.2 1.2 0.56 1.0 0.3 50 2.4 1.3 0.58 1.7 0.5 55 2.9 1.5 0.610 2.6 0.8 0.3 60 3.4 1.8 0.712 3.6 1.1 0.5 65 3.9 2.0 0.814 4.8 1.5 0.6 70 4.5 2.4 0.9 0.416 2.0 0.9 75 2.7 1.0 0.518 2.4 1.0 80 3.0 1.2 0.620 3.0 1.2 0.4 90 3.7 1.5 0.722 3.5 1.4 0.5 100 4.6 1.8 0.9 0.424 4.1 1.7 0.6 120 2.5 1.2 0.526 4.8 2.0 0.7 0.4 140 3.3 1.6 0.728 2.2 0.8 0.5 160 4.3 2.1 0.9 0.330 2.5 0.9 0.5 180 5.3 2.6 1.1 0.432 2.9 1.1 0.6 200 6.5 3.1 1.4 0.534 3.2 1.2 0.6 250 4.7 2.1 0.736 3.6 1.3 0.7 300 6.6 2.9 1.038 3.9 1.5 0.8 350 3.8 1.340 4.3 1.6 0.8 0.3 400 4.9 1.742 4.7 1.7 0.9 0.3 450 2.144 1.9 1.0 0.4 500 2.6Pressure Losses Through Copper and Bronze FittingsWrought CopperNominalTube Size 90° Elbow 45° Elbow Tee RunEquivalent Feet of Straight TubingCast BronzeTee SideOutlet 90° Bend 180° Bend 90° Elbow 45° Elbow Tee Run³/₈ 0.5 0.5 0.5 1 0.5 ¹₂ 1 0.5 0.5 2 9½ 0.5 0.5 0.5 1 0.5 1 1 1 0.5 2 13⁵/₈ 0.5 0.5 0.5 2 1 1 2 1 0.5 3 17¾ 1 0.5 0.5 2 1 2 2 1 0.5 3 211 1 1 0.5 3 2 2 4 2 0.5 5 301¼ 2 1 0.5 4 2 3 5 2 1 71½ 2 2 1 5 2 4 8 3 1 92 2 2 1 7 3 8 11 5 2 122½ 2 3 2 9 4 16 14 8 2 163 3 4 5 20 18 11 2 203½ 4 7 24 24 14 2 314 8 28 28 17 2 375 10 37 41 22 2 486 13 47 52 28 2 61Tee SideOutletCompressionStop128