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In
recent years throughout the world, the world, the importance of
plastics pipes in the design of piping systems for public and
industrial water supply and sewage transport has gradually increased.
This trend reflects a growing confidence in plastics as a piping
material, perhaps due mainly to greater worldwide knowledge and
experience in this field.
The
plastics are mostly manufactured on a petrochemical basis with
petroleum as the raw material. In this context it may be of interest
to know how the world consumption of petroleum looks. Only 4% of the
world production of oil used for manufacturing plastics while 96% is
burned as fuel in the fields of transportation, heating, etc.
World
application of oil
The use of plastics is expanding
rapidly, and especially in the case of plastics pipes. This is
particularly true for pipes designed for water pipes and sewers
outdoors and indoors. All industrial countries show the same
tendency. For example, it can be mentioned that plastics pipe
production in Europe rose from about 1.4 million tonnes in 1985 to
2.6 million tonnes in 1997. The corresponding figures for USA were
1.8 million tonnes in 1986 and 2.4 million tones in1997.
Plastics
pipe market Europe
It should also be noted the rapid
growth of polyolefins pipes in developing countries like South- East
Asia and East Europe.
Market development for polyolefins
pipes
The Further annual growth in Europe for pipes is
estimated at + 7% for PE, + 10% for PP and + 2% for PVC.
The
favorable price trend has also contributed to the fact that today
plastics pipes are competitive with conventional pipes within the
total civil engineering infrastructure branch.
Against
the background of such developments, it seems suitable to spread
further knowledge of plastics pipes and hoe they should be used in a
proper way for water supply and sewage disposal. Thus, the previous
survey of the problems, particularly in the field of outdoor pipe
applications , is hereby updated.
Crosslinked
polyethylene(FEX) can be based upon HDPE as well as MDPE. In the
crosslinking process the molecules are linked together by strong
chemical bonds and chemical and physical crosslinking methods are
both available. The chemical methods implies use of crosslinking
agents such as peroxide, AZO compounds or silane, while physical
crosslinking is archived by electron radiation.
This
article is written by Mr. Yunik Chandna, Director of Fusion PPR a
Leading PPR pipe manufacturer and plastic pipe manufacturer from India.
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