Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Plumbing for buildings
What is Plumbing?
 The system of pipes, tanks, fittings, and other apparatus
required for the water supply, heating, and ...
Plumbing water supply system
comprises of:
 Water supply
 Distribution pipes
 Taps
 Valves
 Storage tanks
Plumbing drainage system consists of:
 Wash basins
 Water closets
 Urinals
 Traps
 Soil waste pipes
 Vent pipes and
...
WATER DISTRIBUTION SYSTEM:
 Water is first collected in underground tank
(known as Suction tanks) and then it is
pumped t...
1.While laying out the pipe lines ,the following
considerations should be kept in mind to prevent the
Contamination of wat...
 Pipes should have earth cover of atleast 60cm
 When pipe laid above ground ,it should run clean
water
 Pipes should ca...
2.Estimation of water requirements:
It is very difficult to precisely assess the quantity of water demanded by
the public,...
Service pipes:
 The pipe leading from the distribution main of the
municipal water supply to the plumbing system of
house...
Copper tubing:
 It is non corrosive with most waters.
 It has considerable strength , reasonable ductility , and is
obta...
Galvanised iron pipes:
 In India these are extensively used
because of low cost in comparison to
copper tubes
 The are u...
Polythene tube:
These are being increasingly used in
externally and internally for cold water
pipes services only.
They ha...
VALVES:
 Valves are used in pipe lines for convenience in
manually closing the pipes to control the flow of
water.
 For ...
Comparison between global valves and gate
valve:
 Gate valves are used for On-Off control whereas Globe valves in
additio...
GLOBE VALVE GATE VALVE
Storage tanks:
 When supplying of water to a building the
pressure of water may not sufficient to rise all the
floors of ...
BRICK MASONRY TANK
CONCRETE TANK
MILD STEEL TANK
A storage tank consists of :
 Top cover : It is made of steel or aluminium or other suitable
material ,light in weight an...
BALL VALVE
Water Supply and Distribution System:
TYPES OF WATER DISTRIBUTION
Water is provided by the city water companies using norm...
Direct Supply:
Water is provided by the city water companies using normal pressure from public water main
GRAVITY SYSTEM AIR PRESSURE SYSTE
INDIRECT SUPLLY:
Plumbing
Upcoming SlideShare
Loading in …5
×

Plumbing

4,351 views

Published on

Services in buildings : plumbing,
water supply

Published in: Engineering
  • Be the first to comment

Plumbing

  1. 1. Plumbing for buildings
  2. 2. What is Plumbing?  The system of pipes, tanks, fittings, and other apparatus required for the water supply, heating, and sanitation in a building called a Plumbing.  Plumbing system comprise the entire system of piping fixtures and appliances etc. use for WATER SUPPLY and DRAINAGES.
  3. 3. Plumbing water supply system comprises of:  Water supply  Distribution pipes  Taps  Valves  Storage tanks
  4. 4. Plumbing drainage system consists of:  Wash basins  Water closets  Urinals  Traps  Soil waste pipes  Vent pipes and  Septic Tanks
  5. 5. WATER DISTRIBUTION SYSTEM:  Water is first collected in underground tank (known as Suction tanks) and then it is pumped to the to elevated storage tanks ,usually situated at the top of the buildings.
  6. 6. 1.While laying out the pipe lines ,the following considerations should be kept in mind to prevent the Contamination of water:  No cross section between pipes  No backflow from any appliance towards source of supply.  Water supply pipes or drainage pipes should not be very close to each other.  under ground pipe lines should be enclosed in a cement mortor BATA so that it’s rusting by soil bacteria is prevented.
  7. 7.  Pipes should have earth cover of atleast 60cm  When pipe laid above ground ,it should run clean water  Pipes should carry water under adequate water pressure  Lay out of the pipe should be simple and direct as far as possible
  8. 8. 2.Estimation of water requirements: It is very difficult to precisely assess the quantity of water demanded by the public, since there are many variable factors affecting water consumption. The various types of water demands, which a city may have, may be broken into following classes: Types of Consumption Normal Range (lit/capita/day) 1 Domestic Consumption 65-300 2 Industrial and Commercial Demand 45-450 3 Public Uses including Fire Demand 20-90 4 Losses and Waste 45-150
  9. 9. Service pipes:  The pipe leading from the distribution main of the municipal water supply to the plumbing system of house is known as SERVICE PIPE. The following materials are commonly used for service pipes:  (i)Copper pipe or brass pipe  (ii) Galvanised iron  (iii)Lead pipe  (iv)Polythene pipe
  10. 10. Copper tubing:  It is non corrosive with most waters.  It has considerable strength , reasonable ductility , and is obtained in long lengths  There are two types of copper water service pipes:  Little gauge : For general purpose works where pressure does not exceed 0.15 N/mm2 and for domestic purposes. Heavy gauge : Used for high pressure works in industrial layouts.
  11. 11. Galvanised iron pipes:  In India these are extensively used because of low cost in comparison to copper tubes  The are used in hard water area , but they corrode more readily in soft and acid waters.So they are not used for soft water supply. Lead pipes:  They are highly resistant to corrosion, highly flexible.  However ,lead has cumulative poisoning effect , due to this it is not preferred.
  12. 12. Polythene tube: These are being increasingly used in externally and internally for cold water pipes services only. They have following advantages over metal piping:  (i)Lower in cost  (ii)Non corrosive  (iii)Light in weight  (iv)Doesn’t require threading  (v)It has some insulating value  (vi)More resistant to bacterial scale
  13. 13. VALVES:  Valves are used in pipe lines for convenience in manually closing the pipes to control the flow of water.  For domestic water supply there are two tupes of valves commonly used: (a) Globe valve (b) Gate valve
  14. 14. Comparison between global valves and gate valve:  Gate valves are used for On-Off control whereas Globe valves in addition can also be used for the flow regulation.  Gate valves offer very little resistance to fluid flow in fully open position and also have small pressure drop across the valve. Globe valves on the other hand have a high pressure drop even in fully open conditions and offer substantial resistance to fluid flow.  Gate valves of the same size are cheaper than globe valves.  Gate valves because of their design have very little fluid trapping in the line but the globe valves have a larger amount due to the direction of flow.  Gate valves are unidirectional and can be put around in any way. The globe valves are not.
  15. 15. GLOBE VALVE GATE VALVE
  16. 16. Storage tanks:  When supplying of water to a building the pressure of water may not sufficient to rise all the floors of the building . Then storage tanks are required to supply water to all floors of a building.  A storage tanks may be situated at ground level or roof level or at both levels.  A storage tank is made of the following materials:  (i) Mild steel plates  (ii) Reinforced concrete  (iii)Stone or brick masonry
  17. 17. BRICK MASONRY TANK
  18. 18. CONCRETE TANK MILD STEEL TANK
  19. 19. A storage tank consists of :  Top cover : It is made of steel or aluminium or other suitable material ,light in weight and tight fitting , so that any insects does not enter.  Ball Valve with float :It is provided near the inlet of the tank , so as to control the inflow of water.  Over flow pipe : If the floating assembly fails ,the inflow is not cut-off and the water entering the tank overflows through this pipe  Inlet pipe or Supply pipe: Admitting water into the tank.  Outlet pipe: It is set about 2.5 to 5cm above the bottom of the tank ,for cutting the supply to house  Drain pipe : For cleaning of the tank periodically
  20. 20. BALL VALVE
  21. 21. Water Supply and Distribution System: TYPES OF WATER DISTRIBUTION Water is provided by the city water companies using normal pressure from public water main  DIRECT :Water is provided by the city water companies using normal pressure from public water main INDIRECT: -Gravity System -Air Pressure System
  22. 22. Direct Supply: Water is provided by the city water companies using normal pressure from public water main
  23. 23. GRAVITY SYSTEM AIR PRESSURE SYSTE INDIRECT SUPLLY:

×