Discharge
3000 HMax. Liquid Level, mm
1000 64 meter
OPERATING CONDITIONS Pump Name Tag. No Fluid Name Temp. Nor. oC SG Nor.
Acceleration of gravity (m/s2) Vapor Press. Nor. kg/cm2 Viscosity Nor. cP
Normal Capacity m3/h 133 l/s
Number of Pumps in Operation
Total Flow 266,000 l/s
Cap. Overdesign %
Rated Capacity m3/h DISCHARGE CONDITIONS
Size
SUCTION CONDITIONS 12"
Pipe Size 24"
Pipe 1 24"
Pipe 2
Min. Drum Press. kg/cm2g Pressure Loss
Min. Static Head kg/cm2g 0,299 Max. a. Line & Fittings kg/cm2
Pressure Loss b. Orifice/FE kg/cm2
a. Line & Fittings kg/cm2 (Table 1) c. Elevation kg/cm2
b. Strainer kg/cm2 d. Equipment kg/cm2
c. Other Loss kg/cm2 e. Allowance 10% kg/cm2
Suc. Pressure kg/cm2g 0,179 Max. f. Control Valve kg/cm2
Max. Desti. Press. kg/cm2g
DIFFERENTIAL PRESSURE Disch. Pressure kg/cm2g
Disch. Pressure kg/cm2g
Suc. Pressure kg/cm2g BRAKE HORSEPOWER
Special Margin kg/cm2 Pump Eff. %
Diff. Pressure kg/cm2 BHP = Cap. Design x SG x Head/367/ Eff.
Head m
Proposed Pump Head m BHP kW
NET POSITIVE SUCTION HEAD Suc. Pressure kg/cm2g Vap. Press. - 1.033 kg/cm2g Net kg/cm2 NPSHA m
NPSHR Pump m Min NPSHR ( 1.5 meter < NPSHA )
Note :
64000 Min. Liquid Level, mm
UPSTREAM LHOKSEUMAWE DRINKING WATER SUPPLY SYSTEM
NPSH A & PUMP HEAD REQUIRED CALCULATION
Issued 20-Jun-24 CALCULATION SHEET Rev. 0 Page : 1 of 2
m3/h 957,60
Intake PUMP P-101, P-102, P-103
Water 30 998,2 Suction
Max. Liquid Level, mm
0,0 957,60
Pipe ID (mm) Velocity (m/s)
Pipe 3 304,9 1,82
9,806 0,042 0,860 478,80 2
ID (mm) Velocity (m/s) Pipe 4 554,0 1,10
250,00 2,71 Pipe 5 554,0 1,10
0,100 (Table 3) 0,588
0,020
0,000 6,388
250,00 2,71
0,000
0,200
CALCULATION 7,896
7,896
0,120 0,000
0,000 0,700
-0,020 0,000
7,916
79,182 <====
80 127,78
-0,020 CALCULATION
0,000 81,53
-0,991 0,971 CALCULATION
-0,020
9,711 8,211
AERASI DN 630"
FT
EL +4.00 DN 300"
DN 300"
H
EL_+60
DN 630"
EL_+68
Table 3. Pressure Drop Calculation for Discharge
Pipe Pipe
Nominal Size (in) Nominal Size (in)
SG SG
Viscocity (cP) Viscocity (cP)
Flow (m3/h) Flow (m3/h)
Flow (kg/h) Flow (kg/h)
Line Length (m) Line Length (m)
Roughness Roughness
ID (mm) ID (mm)
Velocity Velocity
Re Re
f f
Pressure Drop/100 m (kg/cm2) Pressure Drop/ 100 m (kg/cm2)
Act. Length + margin 10% (m) Act. Length + margin 5% (m)
Equiv. Length + margin 0% (m) Equiv. Length + margin (m)
Line Loss K (ft) method (kg/cm2) Line Loss K (ft) method (kg/cm2)
Total line loss (kg/cm2) Total line loss (kg/cm2)
Table 4. Equivalent Length Calculation for Discharge
Fittings Qty Qty Eq. Length, m Fittings Qty Qty Qty
Gate Valve 0 0 0
0 0 0,00 Butterfly Valve 1 0 2
Butterfly Valve 0 0 0,00 Tee (Flow Straight) 1 0 2
Tee (Flow Straight) 0 0 0,00 Elbow 45 2 20 20
Tee (Flow Turns) 0 0 0,00 Elbow 90 2 10 10
Elbow 90 0 0 0,00 Sudden Enlargement 1 1 0 0
Elbow 45 0 0 0,00 Sudden Enlargement 2 0 0 0
Reducer 32 x 18 0 0 0,00 Sudden Enlargement 3 0 0 0
Reducer 30 x 24 0 0 0,00 Check Valve 1 0 0
Reducer 1 1 0 0
Reducer 2 0 0 0
Reducer 3 0 0 0
Total
Table 5. Representative Resistance Coefficients (K) for Valves and Fittings
K = L/D
Table 6. Pressure Drop Across Control ValveGate Valve
8
Control ValveCheck Valve - Swing Type
100
Nominal Size (in)Globe Valve
340
SGCheck Valve - Ball Type
150
Flow Coefficient of Valve (Cv)Tilting Disc Check Valve
40
Flow (m3/h)Foot Valve - Hing Disk Type
75
Number Of Valve (Pcs)Ball Valve
18
Pressure Drop of Control Valve (kg/cm2)Butterfly Valve
45
Total Pressure Drop (kg/cm2)Standard Elbow 45
16
Standard Elbow 90
30
Standard Tee (Turn) with flow throught branch
60
Standard Tee (Straight) with flow throught Run
20
Note :
NPSH A & PUMP HEAD REQUIRED CALCULATION
Issued 20-Jun-24 CALCULATION SHEET Rev. 0 Page : 2 of 2
UPSTREAM LHOKSEUMAWE DRINKING WATER SUPPLY SYSTEM
Pipe 5
0 0 12" 24" 24"
SUCTION DISCHARGE
Table 1. Pressure Drop Calculation for Suction
Pipe 1 Pipe 2 Pipe 3 Pipe 4
0,860 0,860 0,860 0,860 0,860
998,200 998,200 998,2 998,2 998,2
477938 477938 477938 955876 955876
478,80 478,80 478,80 957,60 957,60
0,0015 0,0015 0,0015 0,0015 0,0015
0,00 0,00 10,00 20,00 3500,00
2,71 2,71 1,82 1,10 1,10
250,00 250,00 304,9 554,0 554,0
0,0106 0,0122 0,0126 0,0123 0,0123
786214 786214 644649 709580 709580
0,00 0,00 10,50 21,00 3675,00
1,5884 0,1820 0,0695 0,0138 0,0138
0,0000 0,0000 0,00 0,04 0,55
0,00 0,00 152,28 246,20 318,22
Pipe 5
Size 0,0 0,0 Size 12" 24" 24"
0,0000 0,0000 0,5883
Table 2. Equivalent Length Calculation for Suction
Pipe Pipe 1 Pipe 2 Pipe Pipe 3 Pipe 4
Eq. Length, m Eq. Length, m Eq. Length, m Eq. Length, m
0,00 0,00 0,00
Gate Valve 0,00 13,72 0,00 49,86
0,00 6,10 0,00 22,16
0,00 36,60 0,00 0,00
0,00 0,00 0,00 0,00
0,00 8,00 80,00 80,00
0,00 18,29 166,20 166,20
Total 0,00 0,00 39,08 0,00 0,00
0,00 0,00 0,00 0,00
0,00 30,49 0,00 0,00
318,22
Valves and Fittings
C.Valve 1
0,00 0,00 0,00
0,00 0,00 0,00
0,000 24"
0,86 3400 340,00
0 0,012
152,28 246,20
