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Domestic pumps
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Flow calculation for BC Headquarters-Ghala
Description Loading Unit Qty
GROUND FLOORTaps details
Wash basin, Ablution 2 22 44
WC with flushing Valve 2 15 30
Urinal 1 8 8Bidet 3 0 0Dish washer 3 1 3
Kitchen Sink 5 4 20Total LU 105
FIRST FLOORTaps details
Wash basin, Ablution 2 18 36
WC with flushing Valve 2 19 38
Urinal 1 8 8Bidet 3 0 0Dish washer 3 0 0
Kitchen Sink 5 0 0Total LU 82
GRAND TOTAL LU 187
Total Loading Unit will be 187 LU.From page no 120 of standard BS 6700 - 2006, Convert this in to Design flow rate
For total loading unit of 187 corresponding design flow rate is = 2
The pressure drop is - Friction Factor - kPa / Meter 0.8
Head calculation for BC Headquarters-Ghala
Description Eq Length in M Qty Total Length
Vertical Lift from basement to first floor ( 4.0+5+5+1.5)
Total Pipe length index circuit 1 178 178
Fittings 1 44.5 44.5
Valves 1 35.6 35.6
Total Loading unit LU
Min pressure required at last tap 1.5 bar
Sub Total
Safety margine - 10 % of total head loss
Total Head req. in mtr
Selected Head in Meter
PUMP SELECTION
Total Capacity Required 2 l/sHead Required 60.0 Meter
No of pump working 1No of Pump stand by 1
Pump Capacity 2 l/sPump Head 60 MeterQuantity of Pumps 2 Nos
13 of 14
PROJECT: 1058-BC HEADQUARTERS-GHALA
DRAINAGE SCHEDULE (with 50mm slope in the pipe)
SI.NO: REFERENCE OUTLET INVERT LEVEL REMARKS
MH- ENTRY IL MH-EXIT IL
MH-06 103.780 103.730 105.000
MH-05 103.630 103.580 104.800
1 MH-01 102.780 102.730 104.200 First at the Bottom
2 MH-02 102.630 102.580 104.000 Second from Ablution
3 MH-03 101.850 101.800 103.300 Third from small Toilet
4 MH-04 101.700 101.650 102.500 Fourth from big Toilet
5 Inspection Chamber 101.550 101.500 102.500
99.000 Bottom of Holding Tank
0.100 0.100
0.050 0.050 0.100 0.730
COVER LEVEL (Approximate)
14 of 14
PROJECT: 1058-BC HEADQUARTERS-GHALA
DRAINAGE SCHEDULE (with 50mm slope in the pipe)
SI.NO: REFERENCE OUTLET INVERT LEVEL REMARKS
MH- ENTRY IL MH-EXIT IL
1 MH-01 102.230 102.200 104.200 First at the Bottom
2 MH-02 102.120 102.090 104.000 Second from Ablution
3 MH-03 101.940 101.910 103.300 Third from small Toilet
4 MH-04 101.810 101.780 102.500 Fourth from big Toilet
5 MH-05 101.640 101.610 102.500
6 MH-06 101.450 101.420
7 Inspection Chamber 101.360 101.330
97.330 Bottom of Holding Tank
COVER LEVEL (Approximate)
Recommended