Loading...
HomeMy WebLinkAboutMiscellaneous - Exception (478)SEWAGE PUMP STATION DESIGN COMPUTATIONS Job No. 9302 _w_ < For:. Michael & Elaine Morgil/o ...Calculated by: CRO Date: 01/10/2001 Checked by: VVT PRESSURE DISTRIBUTION NETWORK SYSTEM CURVE Pump Off Elev. 86.5 Hazen -Williams "C" Value 150 ;Manifold Invert Elev. 100.60 K Factor for C > 100 0.47 Lateral Invert Elev. 100.60 FORCE MAIN Flow Velocity HW100 Friction Loss T (gpm) (fps) (ft./100 ft.) (feet) 25 1.1 0.2 0.2 30 1.4 0.3 0.3 35 1.6 0.3 0.4 40 1.8 0.4 0.5 45 2.0 0.5 0.7 MANIFOLD (EACH SEGMEN Flow Velocity HV100 Friction Loss (gpm) (fps) (ft./100 ft.) (feet) 25 1.1 0.2 0.0 30 1.4 0.3 0.1 35 1.6 0.3 0.1 40 1.8 0.4 0.1 45 2.0 0.5 0.1 EACH LATERAL Flow Velocity HV100 Friction Loss (gpm) (fps) (ft./100 ft.) (feet) 6 2.6 2.9 1.5 8 3.1 4.1 2.1 9 3.6 5.4 2.8 10 4.1 6.9 3.6 11 4.6 8.6 4.5 COMPOSITE SYSTEM CURVE How (gpm) Static Head (feet) Residual Press. at Distal End TDH (feet) 25 14.1 3.0 18.9 30 14.1 3.0 19.6 35 14.1 3.0 20.4 40 14.1 3.0 21.3 45 14.1 3.0 22.3 Plot Flow and TDH on Pump Curve to determine operating point of pump. 9302SDS.xis Page 5