The document discusses the components and design of domestic cold water supply systems. It outlines that the primary goal is to provide adequate water flow, pressure and volume for human consumption. The key components include water meters, piping made of materials like PPR, copper, and galvanized steel, valves including gate valves, globe valves and ball valves, and water delivery systems. Piping should be installed with proper spacing and supporting. The document provides details on selecting appropriate pipe sizes, materials and valves for cold water distribution systems.

1. Water supply
Domestic Cold water system :-1
1 Prepared by Eng. Mohamed Abdelghafar
Contents:
A- Over view of the system .
B- System component
C- Some phenomenon in water supply system .
D- System sizing
E-System Drafting

2. Water supply
Domestic Cold water system :-1
2 Prepared by Eng. Mohamed Abdelghafar
The primary task of a building cold water service and
distribution system is to provide adequate flow, pressure
and volume suitable for human consumption at every
device that uses water , even when the system at peak
demand.
System component :
1- Water meter
2- Piping
3- Valves
4- Water delivery system

3. Water supply
Domestic Cold water system :-1
3 Prepared by Eng. Mohamed Abdelghafar

4. Water supply
Domestic Cold water system :-1
4 Prepared by Eng. Mohamed Abdelghafar
Water service pipe : ‫اﻟﻣﯾﺎه‬ ‫ﻋداد‬ ‫ﺣﺗﻲ‬ ‫اﻟﻌﻣوﻣﻲ‬ ‫اﻟﻣﯾﺎه‬ ‫ﺧط‬ ‫ﻣن‬ ‫اﻟﻣﻣﺗدة‬ ‫اﻟﻣواﺳﯾر‬ ‫ھﻲ‬
‫ﻟﻠﻣﻧزل‬
Water Distribution pipe : ‫اﻟﻣﺑﻧﻲ‬ ‫داﺧل‬ ‫اﻟﻌداد‬ ‫ﺑﻌد‬ ‫ﻣن‬ ‫اﻟﻣﻣﺗدة‬ ‫اﻟﻣواﺳﯾر‬ ‫ھﻲ‬
• Corporation valve
A connection to the street main that is approved by the
municipal water authority, consisting of a connection or tap,
and a valve.
• Curb valve
○ An underground valve accessible from the surface to
enable
shut-off of the water service from outside of a building.

5. Water supply
Domestic Cold water system :-1
5 Prepared by Eng. Mohamed Abdelghafar
Corporation valve

6. Water supply
Domestic Cold water system :-1
6 Prepared by Eng. Mohamed Abdelghafar
• Curb valve

7. Water supply
Domestic Cold water system :-1
7 Prepared by Eng. Mohamed Abdelghafar

8. Water supply
Domestic Cold water system :-1
8 Prepared by Eng. Mohamed Abdelghafar

9. Water supply
Domestic Cold water system :-1
9 Prepared by Eng. Mohamed Abdelghafar
Water sources
1- Community water supply
Water obtained from municipalities ‫اﻟﺑﻠدﯾﺔ‬ is generally treated and safe
2- Well
Water obtained from wells must approved by the authority have
jurisdictions

10. Water supply
Domestic Cold water system :-1
10 Prepared by Eng. Mohamed Abdelghafar
System component :
1- Water meter
Types :
A- Disc meter
Sizes : ½, 3/4 , 1, 1 ½, 2 Inch
Is common used for residential and small commercial installations.
B- compound meter
Sizes : 2,3,4,6 in
‫ال‬ ‫اﻏﻠب‬ ‫ﯾﻛون‬ ‫ﻋﻧدﻣﺎ‬ ‫اﻟﻧوع‬ ‫ھذا‬ ‫ﯾﺳﺗﺧدم‬flow‫ال‬ ‫وﻟﻛن‬ ‫ﻣﻧﺧﻔض‬flow‫اﺣﯾﺎﻧﺎ‬ ‫ﻣﺗوﻗﻊ‬ ‫اﻟﻌﺎﻟﻲ‬
C- Turbine meter
Sizes : 2, 3,4,6,10
‫ال‬ ‫ﻣواﺻﻔﺎت‬ ‫ﻧﻔس‬Compound‫ال‬ ‫ﺗﻐﯾرات‬ ‫ﻣﻊ‬ ‫اﻛﺛر‬ ‫ﻣﻧﺎﺳب‬ ‫وﻟﻛﻧﮫ‬Flow‫اﻟﻛﺛﯾرة‬
‫اﻻﻧواع‬ ‫ھذه‬ ‫ﺗوﺿﺢ‬ ‫اﻟﺗﻲ‬ ‫اﻟﻔﯾدﯾوھﺎت‬ ‫ﺑﻌض‬ ‫ﻋﻠﻲ‬ ‫ﻧظرة‬ ‫ﻟﻧﻠﻘﻲ‬

11. Water supply
Domestic Cold water system :-1
11 Prepared by Eng. Mohamed Abdelghafar

12. Water supply
Domestic Cold water system :-1
12 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
‫اﻟﻣﺛﺎل‬ ‫ﺳﺑﯾل‬ ‫ﻋﻠﻲ‬ ‫ﻣﻧﮭﺎ‬ ‫اﻟﺷرب‬ ‫ﻣﯾﺎه‬ ‫ﻣواﺳﯾر‬ ‫ﻣﻧﮭﺎ‬ ‫ﺗﺻﻧﻊ‬ ‫اﻟﺗﻲ‬ ‫اﻟﻣواد‬ ‫ﻣن‬ ‫ﻣﺗﻌددة‬ ‫اﻧواع‬ ‫ﯾوﺟد‬:
1- ABS :Acrylonitrile-Butadiene-Styrene (ABS for short).
Are easier and less expensive to
install than metal piping
Withstand earth loads
perform at an operational
temperature up to 140°F (60°C)
Are light weight

13. Water supply
Domestic Cold water system :-1
13 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
Pp-r)(2-Poly propylene.
‫اﻟﻣﺟﺎل‬ ‫ﻓﻲ‬ ‫ﺷﯾوﻋﺎ‬ ‫اﻻﻧواع‬ ‫اﻛﺛر‬ ‫ﻣن‬ ‫ﯾﻌﺗﺑر‬
Sizes : ½ to 24 inch
‫ﻣﯾﻛﺎﯾﻛﯾﺔ‬ ‫ﺑوﺻﻼت‬ ‫او‬ ‫اﻟﻛﮭرﺑﻲ‬ ‫ﺑﺎﻟﺗﺳﺧﯾن‬ ‫اﻣﺎ‬ ‫ﺗوﺻﯾﻠﮭﺎ‬ ‫ﯾﺗم‬)‫ﻧﺣﺎس‬ ‫ﻗﻼووظ‬(

14. Water supply
Domestic Cold water system :-1
14 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
Pp-r)(2-Poly propylene.

15. Water supply
Domestic Cold water system :-1
15 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
Pp-r) fitting(2-Poly propylene.

16. Water supply
Domestic Cold water system :-1
16 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
Pp-r) fitting(2-Poly propylene.

17. Water supply
Domestic Cold water system :-1
17 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
Pp-r) fitting(2-Poly propylene.

18. Water supply
Domestic Cold water system :-1
18 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
Pp-r) fitting(2-Poly propylene.

19. Water supply
Domestic Cold water system :-1
19 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
3- Galvanised steel .
‫ﻛﻠﻣﺔ‬ ‫ﻣﻌﻧﻲ‬galvanised‫واﻟﺧﺎرج‬ ‫اﻟداﺧل‬ ‫ﻣن‬ ‫ﺑﺎﻟزﻧك‬ ‫اﻟﻣواﺳﯾر‬ ‫طﻼء‬ ‫ھﻲ‬ ‫واﻟﺟﻠﻔﻧﺔ‬ ‫ﻣﺟﻠﻔن‬ ‫اي‬
Ranging from schedule 10 to schedule 40
Most common schedule 40 or schedule 80
‫ﻋﯾوﺑﮫ‬ ‫اﻛﺑر‬:‫اﻟزﻣن‬ ‫ﻣرور‬ ‫ﻣﻊ‬ ‫اﻟﺻدأ‬

20. Water supply
Domestic Cold water system :-1
20 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
3- Galvanised steel .

21. Water supply
Domestic Cold water system :-1
21 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
3- Galvanised steel .

22. Water supply
Domestic Cold water system :-1
22 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
4- HDPE: high density polyethylene.
‫ل‬ ‫ﯾﺗﺳﺧدم‬ ‫ﻏﺎﻟﺑﺎ‬ ‫ﻟذا‬ ‫اﻟﻌﺎﻟﯾﺔ‬ ‫ﻟﻼﻗطﺎر‬ ‫اﻟﻣﯾﺎه‬ ‫ﺗﻐذﯾﺔ‬ ‫ﻓﻲ‬ ‫ﯾﺳﺗﺧدم‬water service pipes

23. Water supply
Domestic Cold water system :-1
23 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
5- Cupper tube
‫اﻟﻧوع‬ ‫ﻣن‬ ‫اﻟﻧﺣﺎس‬ ‫ﻣواﺳﯾر‬ ‫ﺗﻛون‬ ‫ان‬ ‫ﯾﺟب‬seamless‫ﺑﺛق‬ ‫ﻣواﺳﯾر‬ ‫اي‬
‫اﻟﻧﺣﺎس‬ ‫ﻣواﺳﯾر‬ ‫ﻣن‬ ‫اﻧواع‬ ‫ﺛﻼث‬ ‫ﯾوﺟد‬K,L,M‫اﻟﺣﺎﺋط‬ ‫ﺳﻣﺎﻛﺔ‬ ‫ﻓﻲ‬ ‫ﯾﻛون‬ ‫ﺑﯾﻧﮭم‬ ‫واﻻﺧﺗﻼف‬
K: large thickness
L: Medium thickness
M: Minimum thickness
‫ﻟﻠﺻدأ‬ ‫ﻣﻘﺎوم‬ ‫اﻧﮫ‬ ‫ﻣﻣﯾزاﺗﮫ‬ ‫اھم‬ ‫ﻣن‬

24. Water supply
Domestic Cold water system :-1
24 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
5- Cupper tube

25. Water supply
Domestic Cold water system :-1
25 Prepared by Eng. Mohamed Abdelghafar
Piping:
Pipes material :
For more water pipe materials please refer to NSPC table 3-4
page 104
Pipe designation :
NPS : nominal pipe size
DN : Nominal diameter
Schedule number : it’s a number related to wall thickness
PN : Nominal pressure

26. Water supply
Domestic Cold water system :-1
26 Prepared by Eng. Mohamed Abdelghafar
Piping:

27. Water supply
Domestic Cold water system :-1
27 Prepared by Eng. Mohamed Abdelghafar
Piping:

28. Water supply
Domestic Cold water system :-1
28 Prepared by Eng. Mohamed Abdelghafar
Piping:

29. Water supply
Domestic Cold water system :-1
29 Prepared by Eng. Mohamed Abdelghafar
Piping:
Water service :
‫ﻋن‬ ‫ﺑﯾﻧﮭم‬ ‫اﻟﻣﺳﺎﻓﺔ‬ ‫ﺗﻘل‬ ‫اﻻ‬ ‫اﻟﺻف‬ ‫ﻣﺎﺳورة‬ ‫ﺑﺟوار‬ ‫اﻟﻣﯾﺎه‬ ‫ﻣﺎﺳورة‬ ‫ﺗرﻛﯾب‬ ‫ﻋﻧد‬ ‫ﻻﺑد‬12‫ﺑوﺻﺔ‬

30. Water supply
Domestic Cold water system :-1
30 Prepared by Eng. Mohamed Abdelghafar
Valves :
Main types
1- Gate valve
2- Globe valve
3- Ball valve
4- Butterfly valve
5- Check valve
Valves Function:
1- Starting and stopping flow
2- Throttling (regulating flow )
3- preventing the reversal of the flow .

31. Water supply
Domestic Cold water system :-1
31 Prepared by Eng. Mohamed Abdelghafar
Valves :
1- Gate valve:

32. Water supply
Domestic Cold water system :-1
32 Prepared by Eng. Mohamed Abdelghafar
Valves :
2- Globe valve:
The main advantage of the gate valve it uses as throttling
and regulating flow
Look at the video

33. Water supply
Domestic Cold water system :-1
33 Prepared by Eng. Mohamed Abdelghafar
Valves :
3- Angle valve:
‫ﻟل‬ ‫ﻣﺷﺎﺑﮫ‬globe valve‫ﺑزاوﯾﺔ‬ ‫اﻧﺣﻧﺎء‬ ‫ﻋﻧد‬ ‫وﯾرﻛب‬90‫درﺟﺔ‬

34. Water supply
Domestic Cold water system :-1
34 Prepared by Eng. Mohamed Abdelghafar
Valves :
3- Angle valve:

35. Water supply
Domestic Cold water system :-1
35 Prepared by Eng. Mohamed Abdelghafar
Valves :
4- Butterfly valve:
‫ال‬ ‫ﻣن‬ ‫ﺑدﻻ‬ ‫ﯾﺳﺗﺧدم‬gate valve‫ﻏرﻓﺔ‬ ‫ﻋﻧد‬ ‫اﻟﻔﻘﺎﻋﺎت‬ ‫ﻣن‬ ‫ﺗﻣﺎﻣﺎ‬ ‫ﺧﺎﻟﻲ‬ ‫ﻏﻠق‬ ‫ﻣطﻠوب‬ ‫ﯾﻛون‬ ‫ﻋﻧدﻣﺎ‬
‫ﻣﺛﻼ‬ ‫اﻟطﻠﻣﺑﺎت‬

36. Water supply
Domestic Cold water system :-1
36 Prepared by Eng. Mohamed Abdelghafar
Valves :
5- Check valve:
‫ﻋﻧد‬ ‫وﯾرﻛب‬ ‫اﻻﺗﺟﺎه‬ ‫ﻋﻛس‬ ‫اﻟﻣﺎء‬ ‫رﺟوع‬ ‫ﻣﻧﻊ‬ ‫ﻣﮭﻣﺗﮫ‬:
1-‫اﻟطﻠﻣﺑﺔ‬ ‫ﻣﺧرج‬
2-‫اﻟﺳﺧﺎن‬ ‫ﻣدﺧل‬
3-‫اﻟﻌداد‬ ‫وﻣﺧرج‬ ‫ﻣدﺧل‬
Types
1- swing check
2- left check

37. Water supply
Domestic Cold water system :-1
37 Prepared by Eng. Mohamed Abdelghafar
Valves :
5- Check valve:
Types
1- swing check

38. Water supply
Domestic Cold water system :-1
38 Prepared by Eng. Mohamed Abdelghafar
Valves :
5- Check valve:
Types
2- lift check

39. Water supply
Domestic Cold water system :-1
39 Prepared by Eng. Mohamed Abdelghafar
Valves used in water supply system :
1- float valve
2- Air vent
3- Back flow preventer
float valve Air vent Back flow preventer

40. Water supply
Domestic Cold water system :-1
40 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
‫ﺻﺣﻲ‬ ‫ﺟﮭﺎز‬ ‫ﻻﺑﻌد‬ ‫اﻟﻣطﻠوب‬ ‫واﻟﺿﻐط‬ ‫اﻟﻣطﻠوﺑﺔ‬ ‫ﺑﺎﻟﻛﻣﯾﺔ‬ ‫اﻟﻣﯾﺎه‬ ‫ﺗوﺻﯾل‬ ‫ﻋﻠﻲ‬ ‫اﻟﺑﻠدﯾﺔ‬ ‫ﻣﯾﺎه‬ ‫ﻗدرة‬ ‫ﻋدم‬ ‫ﻋﻧد‬
‫اﻻﺗﯾﺔ‬ ‫اﻟطرق‬ ‫ﻻﺣدي‬ ‫ﻧﻠﺟﺄ‬:
1- Booster pump system :
‫ال‬ ‫ﻟﺗوﺻﯾل‬ ‫ﻣﺣددة‬ ‫ﺑﻘدرات‬ ‫اﻟﻣﺿﺧﺎت‬ ‫ﻣن‬ ‫ﻣﺟﻣوﻋﺔ‬ ‫ﻋن‬ ‫ﻋﺑﺎرة‬flow‫اﻟﻣطﻠوﺑﺎن‬ ‫واﻟﺿﻐط‬ ‫ﺑﺎﻟﻛﻣﯾﺔ‬
‫ﺻﺣﻲ‬ ‫ﺟﮭﺎز‬ ‫ﻻﺑﻌد‬.

41. Water supply
Domestic Cold water system :-1
41 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
‫ال‬ ‫ﺑﻣﻌرﻓﺔ‬ ‫ﺣﺳﺎﺑﮭﺎ‬ ‫ﯾﺗم‬ ‫ﻟﻠﻣﺿﺧﺔ‬ ‫اﻟﻣطﻠوﺑﺔ‬ ‫اﻟﻣﯾﺎه‬ ‫ﻛﻣﯾﺔ‬peak flow demand‫ﻟﻠﻣﺑﻧﻲ‬
‫وال‬head‫اﻻﺗﯾﺔ‬ ‫اﻟﻣﻌﺎدﻟﺔ‬ ‫ﻣن‬ ‫ﺣﺳﺎﺑﮫ‬ ‫ﯾﺗم‬ ‫ﻟﻠطﻠﻣﺑﺔ‬
Hp= Hst+Hf +Hres
Hp : Pump Head
Hf : all friction losses in the system
Hres: residual pressure ‫ﺻﺣﻲ‬ ‫ﺟﮭﺎز‬ ‫اﺑﻌد‬ ‫ﻣﺧرج‬ ‫ﻋﻧد‬ ‫اﻟﻣطﻠوب‬ ‫اﻟﺿﻐط‬ ‫وھو‬
Hst : Static Head

42. Water supply
Domestic Cold water system :-1
42 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
2- Elevated tank or gravity tank :-
: ‫ﻣﻣﯾزاﺗﮫ‬
‫اﻟﺻﯾﺎﻧﺔ‬ ‫ﺳﮭل‬
‫اﻟﺿﻐط‬ ‫ﻓﻲ‬ ‫ﺗﻐﯾرات‬ ‫ﯾوﺟد‬ ‫ﻻ‬
‫ﺻﻐﯾرة‬ ‫ﻗدرة‬ ‫ذات‬ ‫طﻠﻣﺑﺔ‬ ‫ﯾﺗطﻠب‬
‫ﻣﻧﺧﻔﺿﺔ‬ ‫اﻟﺗﺷﻐﯾل‬ ‫ﺗﻛﻠﻔﺔ‬
: ‫ﻋﯾوﺑﮫ‬
‫ﯾﺳﺗطﯾﻊ‬ ‫ﺣﺗﻲ‬ ‫ﺗدﻋﯾﻣﺎت‬ ‫ﯾﺗطﻠب‬ ‫اﻟﻣﺑﻧﻲ‬
‫اﻟﻣﯾﺎه‬ ‫وزن‬ ‫ﻋن‬ ‫اﻟﻧﺎﺗﺞ‬ ‫ﺗﺣﻣﻼﻟﺣﻣل‬
‫ﻛﺎﻓﯾﻲ‬ ‫ﻏﯾر‬ ‫اﻟﻌﺎﻟﯾﺔ‬ ‫اﻻدوار‬ ‫ﻓﻲ‬ ‫اﻟﻣﯾﺎه‬ ‫ﺿﻐط‬
‫اﻟﺟﯾد‬ ‫اﻟﺗﺻﻣﯾم‬ ‫ﻋدم‬ ‫ﻋﻧد‬ ‫ﯾﺣدث‬ ‫وذﻟك‬

43. Water supply
Domestic Cold water system :-1
43 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
2- Elevated tank or gravity tank :-
‫ﺻﺣﻲ‬ ‫ﺟﮭﺎز‬ ‫اﻋﻠﻲ‬ ‫ﻋﻧد‬ ‫اﻟﻣطﻠوب‬ ‫اﻟﺿﻐط‬ ‫ﻟﺗوﻟﯾد‬ ‫ﯾﻛﻔﻲ‬ ‫ارﺗﻔﺎع‬ ‫ﻋﻠﻲ‬ ‫ﯾرﻛب‬ ‫ان‬ ‫ﻻﺑد‬ ‫اﻟﻧوع‬ ‫ھذا‬.
‫اﻟﺗﺎﻧك‬ ‫ﻟﻣﺳﺗوي‬ ‫اﻻرض‬ ‫ﻣﺳﺗوي‬ ‫ﻣن‬ ‫اﻟﻣﯾﺎه‬ ‫ﻟرﻓﻊ‬ ‫طﻠﻣﺑﺎت‬ ‫ﺗرﻛﯾب‬ ‫ﯾﻔﺿل‬,‫اﻟﻌﺎﻟﯾﺔ‬ ‫اﻟﻣﺑﺎﻧﻲ‬ ‫ﻓﻲ‬ ‫ﺧﺎﺻﺔ‬
Tank detail :
1-‫اﻟﺗﺎﻧك‬ ‫ﺟﺳم‬:
‫ﻣﺛل‬ ‫ﻣﺧﺗﻠﻔﺔ‬ ‫ﻣواد‬ ‫ﻣن‬ ‫وﯾﻛون‬
1- GRP tank
2- Polypropylene tank
3- Concrete tank
4- Galvanised tank

44. Water supply
Domestic Cold water system :-1
44 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :

45. Water supply
Domestic Cold water system :-1
45 Prepared by Eng. Mohamed Abdelghafar

46. Water supply
Domestic Cold water system :-1
46 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
2- Elevated tank or gravity tank :-
2- Tank vent
3- Make-up water supply
4- Tank over flow
5- Tank drain valve
6- Tank outlet
‫اﻟﺗﺎﻧك‬ ‫ﻣﯾﺎه‬ ‫ﻟﺗﮭوﯾﺔ‬ ‫وذﻟك‬
‫اﻋﻠﻲ‬ ‫ﻋن‬ ‫ارﺗﻔﺎﻋﮭﺎ‬ ‫ﯾﻛون‬ ‫ان‬ ‫وﯾﺟب‬ ‫ﻟﻠﺗﺎﻧك‬ ‫اﻟﻣﯾﺎه‬ ‫ﺿﺦ‬ ‫ﻋن‬ ‫اﻟﻣﺳﺋوﻟﺔ‬ ‫اﻟﻣﯾﺎه‬ ‫وﺻﻠﺔ‬
‫اﻟﻔﺎﺋض‬ ‫ﻣﺎﺳورة‬ ‫ارﺗﻔﺎع‬ ‫وﻧﺻف‬ ‫ﻣرة‬ ‫ﯾﺳﺎوي‬ ‫ﻟﻠﻣﯾﺎه‬ ‫ﻣﻧﺳوب‬

47. Water supply
Domestic Cold water system :-1
47 Prepared by Eng. Mohamed Abdelghafar

48. Water supply
Domestic Cold water system :-1
48 Prepared by Eng. Mohamed Abdelghafar

49. Water supply
Domestic Cold water system :-1
49 Prepared by Eng. Mohamed Abdelghafar

50. Water supply
Domestic Cold water system :-1
50 Prepared by Eng. Mohamed Abdelghafar

51. Water supply
Domestic Cold water system :-1
51 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
3- Hydro-pneumatic pressure booster system :-

52. Water supply
Domestic Cold water system :-1
52 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
3- Hydro-pneumatic pressure booster system :-

53. Water supply
Domestic Cold water system :-1
53 Prepared by Eng. Mohamed Abdelghafar
Water Delivery system :
‫اﻻرض‬ ‫اﺳﻔل‬ ‫او‬ ‫اﻟﺑدروم‬ ‫ﻓﻲ‬ ‫ﺗرﻛﯾﺑﮫ‬ ‫ﯾﻣﻛن‬ ‫وﻟﻛن‬ ‫اﻻﻋﻠﻲ‬ ‫ﻓﻲ‬ ‫اﻟﺧزان‬ ‫ﺗرﻛﯾب‬ ‫ﯾﺗم‬ ‫داﺋﻣﺎ‬ ‫ﻟﯾس‬
Installation of tank:-
1- Elevated
2- Underground tank
‫اﻟﻣﺑﻧﻲ‬ ‫اﺣﻣﺎل‬ ‫ﻋﻠﻲ‬ ‫اﻟﺗﺎﺛﯾر‬ ‫دون‬ ‫اﻟﻣﯾﺎه‬ ‫ﻣن‬ ‫ﻛﺑﯾرة‬ ‫ﻛﻣﯾﺔ‬ ‫ﺗﺧزﯾن‬ ‫ﻻﻣﻛﺎﻧﯾﺔ‬ ‫وذﻟك‬ ‫ﺑﻛﺛرة‬ ‫اﺳﺗﺧداﻣﮫ‬ ‫وﯾﺗم‬
‫ال‬ ‫ﻣﻊ‬ ‫ﺗرﻛﯾﺑﮫ‬ ‫وﯾﺗم‬booster pump system

54. Water supply
Domestic Cold water system :-1
54 Prepared by Eng. Mohamed Abdelghafar
Pumps:-
Water pumps
Centrifugal Pumps
Vertical Multistage Inline pump End suction pump

55. Water supply
Domestic Cold water system :-1
55 Prepared by Eng. Mohamed Abdelghafar
Pumps:-
Water pumps

56. Water supply
Domestic Cold water system :-1
56 Prepared by Eng. Mohamed Abdelghafar
Pumps:-
Water pumps
Q-H Curve

57. Water supply
Domestic Cold water system :-1
57 Prepared by Eng. Mohamed Abdelghafar
Pumps:-
Water pumps
Pumps in parallel

58. Water supply
Domestic Cold water system :-1
58 Prepared by Eng. Mohamed Abdelghafar
Pumps:-
Water pumps
Pumps in series

59. Water supply
Domestic Cold water system :-1
59 Prepared by Eng. Mohamed Abdelghafar
Pumps:-
Water pumps Net positive suction Head