Borst Engineering & Construction LLC
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Pipe & Pump System Design Calculator (Darcy-Weisbach Formula) - Borst Engineering & Construction LLC
Calculation Type (0=Pipe Capacity, 1=Pipe Design Flow Rate, 2=Open Pipe/Pump System Design, 3=Closed Pipe/Pump System Design)
Design Flow Rate (GPM, GPM=448.8 x CFS)
Design Inlet Pressure (PSI)
Design Elevation Change (Feet, Outlet Below Inlet is Positive)
Design Hydraulic Diameter (Inches)
Design Length (Feet)
Darcy-Weisbach Absolute Roughness (Inches, Steel Pipe is 0.0018)
Design Friction Head Loss (Feet)
Fluid Density (PCF, 62.3 for Water @ 60 deg F)
Fluid Dynamic Viscosity (Lb/Ft/Sec, 0.00076 for Water @ 60 deg F)
Pump Performance Curve Data Point #1 (Flow Rate in GPM, 0.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #2 (Flow Rate in GPM, 1.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #3 (Flow Rate in GPM, 2.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #4 (Flow Rate in GPM, 3.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #5 (Flow Rate in GPM, 4.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #6 (Flow Rate in GPM, 5.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #7 (Flow Rate in GPM, 6.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #8 (Flow Rate in GPM, 7.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #9 (Flow Rate in GPM, 8.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #10 (Flow Rate in GPM, 9.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #11 (Flow Rate in GPM, 10.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #12 (Flow Rate in GPM, 12.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #13 (Flow Rate in GPM, 14.0 for Grundfos UP15-42F)
Pump Performance Curve Data Point #14 (Flow Rate in GPM, 16.8 for Grundfos UP15-42F)
Pump Performance Curve Data Point #1 (Head in Feet, 14.9 for Grundfos UP15-42F)
Pump Performance Curve Data Point #2 (Head in Feet, 14.4 for Grundfos UP15-42F)
Pump Performance Curve Data Point #3 (Head in Feet, 13.8 for Grundfos UP15-42F)
Pump Performance Curve Data Point #4 (Head in Feet, 13.1 for Grundfos UP15-42F)
Pump Performance Curve Data Point #5 (Head in Feet, 12.6 for Grundfos UP15-42F)
Pump Performance Curve Data Point #6 (Head in Feet, 11.9 for Grundfos UP15-42F)
Pump Performance Curve Data Point #7 (Head in Feet, 11.1 for Grundfos UP15-42F)
Pump Performance Curve Data Point #8 (Head in Feet, 10.4 for Grundfos UP15-42F)
Pump Performance Curve Data Point #9 (Head in Feet, 9.7 for Grundfos UP15-42F)
Pump Performance Curve Data Point #10 (Head in Feet, 8.8 for Grundfos UP15-42F)
Pump Performance Curve Data Point #11 (Head in Feet, 7.9 for Grundfos UP15-42F)
Pump Performance Curve Data Point #12 (Head in Feet, 5.8 for Grundfos UP15-42F)
Pump Performance Curve Data Point #13 (Head in Feet, 3.5 for Grundfos UP15-42F)
Pump Performance Curve Data Point #14 (Head in Feet, 0.0 for Grundfos UP15-42F)
Minimum Hydraulic Diameter (Inches)
Actual Flow Rate (GPM, CFS=GPM/448.8)
Actual Velocity (FPS)
Actual Reynolds Number
Head Available at Site (Feet)
Head Available at Site (PSI)
Actual Friction Head Loss (Feet)
Actual Friction Head Loss (PSI)
Specific Friction Head Loss (Feet per 100 Feet of Pipe)
Specific Friction Head Loss (PSI per 100 Feet of Pipe)
Head Available at Outlet (Feet)
Head Available at Outlet (PSI)
Pump Head Gain (% of Max Pump Head, 90 or less recommended)
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