Size a Pump

CLIENT: COUNTY: DATE: 4/19/23DSN BY: CHK BY: ___________ DATE:__________COMMENTS:

Elevation at Highest Point 99.5 ftElevation at Low Point 86.6 ft

DISCHARGE PIPEDischarge Pipe Length 130.0 ftEquivalent Length of Pipe Fittings 35.0 ft (see tables) =============================>Discharge Pipe Inside Diameter 3.00 inHazen-Williams Roughness, C 130 ==========================> Hazen-Williams

Material COther Losses 0.0 ft Brass 130

Cast Iron 100Concrete 100Copper 130

Static Head 12.9 ft Fiberglass 150Total Discharge Pipe Length 165.0 PE, no joints 150

PVC 130Steel, Smooth 100

Pump Manufacturer Goulds Steel, Spiral 90Pump Model # WS15D3 Steel, CMP 60

Pump Curve System CurveFlow Pump Flow SystemGPM Head, ft GPM Head, ft

0 38 0 12.9

50 34 50 14.3

100 30 100 17.9150 26 150 23.6200 22 200 31.0250 16 250 40.3300 10 300 51.3

Head at Operating Point 25.0 ft (Intersection of curves from graph below)Flow at Operating Point 160 gpm (Intersection of curves from graph below)

0.36 cfsOperating Velocity 7.3 feet/secOperating Pressure 10.8 psi

Note: Velocity will increase as static head pressure (acting against the pump) decreases

ft (includes equivalent length of fittings)

CLEAR CELLS

POWER REQUIREMENTSHydraulic Power 1.0 WHP (net energy transferred to the fluid)

0.8 WkW (net energy transferred to the fluid)

Installed Pump Efficiency 74.0 % (see manufacturer's efficiency curves)Brake Power 1.4 bHP (power delivered by the motor to the pump)

1.0 bkW (power delivered by the motor to the pump)

Motor Efficiency 70.0 %Motor Input Power 2.0 HP

1.5 kW

COST OF ELECTRICITYCost per kW-hr $0.100 DollarsHours used 1.0 HoursTotal Cost $0.15 Dollars

0 50 100 150 200 250 3000

10

20

30

40

50

60

38

34

30

26

22

16

10

12.914.3

17.9

23.6

31.0

40.3

51.3

Pump & System Curves

Pump System

Flow, gallons per minute

Hea

d, f

eet