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Pipe line pigging is an
internal pipe cleaning process, which is utilized to
renew flow rates to restricted piping systems and to
reduce pumping pressures.
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If low "C"
factors, inadequate water flow, or unwanted foreign
matter such as iron oxide (red water), alum, calcium
carbonates, barium sulfide and the like are causing
problems in your system, pigging in most cases provides
a solution.
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The pigs are made of an
open-cell polyurethane flexible foam at varied densities
and are coated in a polyurethane rubber coating with the
addition of various types of abrasives.
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The process used to clean
piping systems is called progressive pigging. This
process involves graduating the pig size until the
original I.D. of the pipe being cleaned is achieved.
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Pigging can be used on
various size lines from one to 72" in diameter and
from one foot to miles in length. The fact that
the pig will reduce in size, allows it to pass through
multidimensional lines and can be run with valves,
elbows and tee's in place.
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The advantages of pigging
over the conventional cleaning methods are:
- less down time and
quick turnaround;
- no hazardous
chemicals;
- safe; and
- most economical.
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