Water Supply Pipes Description

For the students who need to work out on the pipes in their building services subject.

2. CONTENTS
•INTRODUCTION
•TYPES OF PIPES
•SIZES OF PIPES
•USES OF PIPES
•COST OF PIPES
•ADVANTAGES AND DISADVANTAGES

3. INTRODUCTION
A water pipe is any pipe or tube designed to transport
treated drinking water to consumers. The varieties include
large diameter main pipes, which supply entire towns,
smaller branch lines that supply a street or group of
buildings, or small diameter pipes located within individual
buildings. Materials commonly used to construct water pipes
include cast iron, polyvinyl chloride (PVC), copper, steel or
concrete.

4. TYPES OF PIPES
•Steel Pipes
•Galvanised pipes or iron Pipes
•Cast Iron Pipes
•Concrete Pipes
•PVC Pipes

5. STEEL PIPE
•Steel pipes are comparatively
expensive, but they are the strongest
and most durable of all water supply
pipes
• They can withstand high water
pressure, come in convenient
(longer) lengths than most other
pipes and thus incur lower
installation/transportation costs.

6. GALVANISED PIPE
•Used several years ago.
•Less frequent used now as rust
can build up inside small diameter
pipes.
•Can be used to transport grey
water.
•Use for high temperature or
pressure manufacturing
processes.

7. CAST IRON PIPE
•Cast iron pipes are quite stable and
well suited for high water pressure.
•However, cast iron pipes are heavy,
which makes them unsuitable for
inaccessible places due to
transportation problems.
• In addition, due to their weight they
generally come in short lengths
increasing costs for layout and
jointing.

8. CONCRETE PIPES
•Concrete cement pipes are
expensive but non-corrosive by
nature.
•Their advantage is that they are
extremely strong and durable.
• However, being bulky and heavy,
they are harder and more costly to
handle, install and transport

9. PVC PIPE
•PVC full name is Poly Vinyl
Chloride.
•Used for hot and cold potable water
as well with sewage application.
•Vary on their thickness and
configuration depending on the
application where to be used.
•Example : pressure water pipes are
not the same as sewer pipes and not
the same as the ones used on storm
drainage systems.

10. SIZES OF PIPES

11. SIZES OF CAST IRON PIPE

12. SIZES OF STEEL PIPE

13. SIZE OF GALVANISED PIPE
SIZE EXTERNAL D INTERNAL D

14. SIZE OF PVC PIPE