P000093-Supreme Court Phase 2 05/06/2025
Storey Location Fittings
B4 Gravity Feed 0 0 0 0 10 0
B3 Gravity Feed 0 0 0 0 6 0
B2 Gravity Feed 39 10 38 6 7 0
B1 Gravity Feed 13 13 14 4 22 4
1st Gravity Feed 14 8 13 0 18 2
2nd Gravity Feed 13 11 12 0 19 3
Page 1 of 9 881412467.xls
P000093-Supreme Court Phase 2 05/06/2025
Storey Location Fittings
2And Gravity Feed 10 10 10 0 15 3
3rd Gravity Feed 0 0 0 0 8 0
3And Gravity Feed 18 10 18 0 14 2
4th Gravity Feed 25 9 24 0 17 3
4Ath Gravity Feed 2 2 2 0 3 0
5th Pump Feed 0 0 0 0 8 0
6th Pump Feed 7 5 6 0 13 0
Pump Feed 7 5 6 0 21 0
Gravity Feed 134 73 131 10 139 17
Total 141 78 137 10 160 17
Page 2 of 9 881412467.xls
SAP No. - Project Title 05/06/2025
Calculation Sheet for Plumbing System [(CP 48):1989]
ESTIMATED USAGE OF WATER CONSUMPTION
SIZING - Potable & Flush Water Tank
INDIRECT FEED
Population
Estimated Number of Units = 0
Estimated number of visitors = 0 10m2/ pax
Water consumption rate per unit per day = 0 l/head
Water consumption rate for visitors = 10 l/head
Total water consumption per day = 0 m3/day
DIRECT FEED
Toilet cleaning
Toilet cleaning rate (assumed) = 120 l/toilet/day
Number of toilets in building = 0
Total cleaning water consumption per day = 0 m3/day
Total Potable Water Consumption = 0.00 m3/day
= 0.00 m3/mth
Page 3 of 9 881412467.xls
SAP No. - Project Title 05/06/2025
Calculation Sheet for Plumbing System [(CP 48):1989]
WATER TANK SIZING
SUMMARY
Low Level Transfer Tank = 1 x 0 x 3
High Level PW Tank = 1 x 0 x 3
High Level HR Water Tank = 1 x 1 x 2
Cooling Tower Make-up Tank = 1 x 0 x 3
Irrigation Tank = 1 x 1 x 2
POTABLE SYSTEM
SIZING OF HIGH LEVEL PW TANK (Min 24 hrs storage CP48)
Storage capacity (assumed) = 24 hrs
Effective storage volume = 0 m3
Effective factor = 75%
Gross storage volume = 0 m3
Recommended tank size = 1 x 0 x 3
(Length) (Breadth) (Height)
TRANSFER TANK
low level tanks should be 1/3 capacity of high level tanks.
Storage capacity (assumed) = 8 hrs
Transfer Tank Capacity = 0.00 m3
Effective factor = 75%
Gross storage volume = 0 m3
Recommended tank size = 1 x 0 x 3
(Length) (Breadth) (Height)
HOSEREEL SYSTEM
SIZING OF HIGH LEVEL TANK (Min 24 hrs storage CP48)
Storage capacity (assumed) = 24 hrs
Effective storage volume = 1.1 m3
Effective factor = 75%
Gross storage volume = 2 m3
Recommended tank size = 1 x 1 x 2
(Length) (Breadth) (Height)
COOLING TOWER SYSTEM
Effective storage volume = 0 m3
Effective factor = 75%
Gross storage volume = 0 m3
Recommended tank size = 1 x 0 x 3
(Length) (Breadth) (Height)
IRRIGATION SYSTEM
Storage capacity (assumed) = 24 hrs
Effective storage volume = 0.33 m3
Effective factor = 75%
Gross storage volume = 1 m3
Recommended tank size = 1 x 1 x 2
(Length) (Breadth) (Height)
Page 4 of 9 881412467.xls
05/06/2025
Transfer Pump Head Sizing Calculation
Potable & Flush System
FITTINGS
SECTION Q C D ACTUAL TYPE EQV. PL PER NO. OF TOTAL HL PER M OF ACTUAL
OF PIPE (l/s) (mm) PL (m) FITTING (m) FITTINGS EQV. PL(m) PIPE (m/m) HL (m)
Between Furthest 0.00 140 0 - 0 0 0.00 #DIV/0! #DIV/0!
Tank to Transfer - 0 0
Pump - 0 0
- 0 0
- 0 0
- 0 0
Total head loss #DIV/0!
Minimum dynamic pressure = 0.0 m = 0.0 Bar
Static loss = 0 m Cut-in pressure = #DIV/0! kPa
Total friction loss = ### m = #DIV/0! kPa (approx.)
Safety Factor = 15% Cut-out pressure = #DIV/0! kPa
Pump Head Required = ### m = #DIV/0! kPa (approx.)
Page 5 of 9 881412467.xls
P000093-Supreme Court Phase 2 05/06/2025
Calculation Sheet for Plumbing System [(CP 48):1989]
Flow Rate Calculation
System Involve: (Tick the Box for Potable System ONLY)
Potable System Only
For Potable System
Fitting Qty Loading Unit Total
- - 0 x 0 = 0
Sub Total Loading Unit = 0
Total Floor Serving = 1
Total Loading Unit = 0
Design Flowrate for number of fittings Qp = 0.00 lit / sec
For Flush System
Fitting Qty
- - 0
- - 0
- - 0
- - 0
Total 0
Nature of Occupancy: (Select one group)
Group A: Offices, Hotels & Hospitals.
Group B: Schools & Other Premises where Rest Periods Create Extraordinary Demands.
Design Flowrate for number of FV Qf 0 x 1.5 = 0
Design Flowrate for number of FV Qf = 0.00 lit / sec
Design Flowrate of Pump Flowrate QT = Qp + Q f lit / sec
= 0.00 lit / sec
Page 6 of 9 881412467.xls
05/06/2025
Pump Head Sizing Calculation
Flush System - Block K
FITTINGS
SECTION LU Q C D ACTUAL TYPE EQV. PL PER NO. OF TOTAL HL PER M OF ACTUAL
OF PIPE (l/s) (mm) PL (m) FITTING (m) FITTINGS EQV. PL(m) PIPE (m/m) HL (m)
Between Furthest - 6.00 140 80 13 Tee 5.8 2 77.50 0.01873 1.6950
Fitting to Pump Elbow 3.4 6
Check Valve 11.5 1
Strainer 34 1
- 0 4
- 0 0
Total head loss 1.6950
Minimum dynamic pressure = 10.2 m = 1.0 Bar
Static loss = 15 m Cut-in pressure = 309.2 kPa
Total friction loss = 1.70 m = 310 kPa (approx.)
Safety Factor = 15% Cut-out pressure = 409.2 kPa
Pump Head Required = 30.92 m = 410 kPa (approx.)
Page 7 of 9 881412467.xls
05/06/2025
SIZING - Potable & Flush Water Pressure Vessel
Flush System - Block K
Maximum Flowrate (Design), Q = 6.00 l/s
Minimum Flowrate (assume 1/4 of Max.) = 1.50 l/s
Flowrate Average Pump Output (APO) = 3.75 l/s
Head Required = 16.10 m
Cut-in Pressure (P1) = 16.10 m
Cut-out Pressure (P2) = 26.10 m
Pressure Factor (PF) = 1 - (P1 + 10.33)/(P2 + 10.33)
= 0.2745
Pumping Time (t) = 3 min
No of pump cycle/hr (i) = 20 times per pump
Effective Volume of Pressure Vessel Output (PVO) = 1/2 APO x t
= 340 litres
Actual Volume of Pressure Vesssel (V1) = (PVO)/(PF)
= 1239 litres
Capacity of Pressure Vessel Tank = 750 litres
No. of Pressure Vessel Required (n) = 3 nos.
No of PV for 2 pump system, n = 2 nos.
Page 8 of 9 881412467.xls
05/06/2025
Isolator Sizing Calculation
Flush System - Block K
Flow rate = 6.00 l/s
= cmh
= 95.10 gpm
Head required = 16.1 m
= 52.8 ft
Take: Pump efficiency, Effp = 45.0%
Motor H.P., MHP = (Q x H) / (3960 x Effp)
= 2.81898 H.P.
= 2.07336 kW
Take: Motor efficiency, Effm = 75.0%
Power factor, PFm = 75.0%
Motor Power Intake, MPI = MHP / Effm
= 2.76448 kW
Rating required, IR = MPI / (PFm x 1.732 x 0.4)
= 5.32024 A
With 20% SF, IR = 6.38429 A
(Take IR = 6.5 A)
Page 9 of 9 881412467.xls
