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 There
are three processes for metallic pipe manufacture. Seamless
pipe is formed by drawing a solid billet over a piercing rod
to create the hollow shell. Seamless pipe provides the most
reliable pressure retaining characteristics, and is often
more easily available than welded pipe. Welded pipe is
formed by rolling plate and welding the seam. The weld flash
is removed from the outside and inside surfaces and the weld
zone is heat treated, so the seam is generally not visible.
Welded pipe often has tighter dimensional tolerances than
seamless, and can be cheaper if manufactured in the same
quantities. Cast pipe is no longer very common, but still
exists. Pipe is sometimes cast in a centrifuge.
Pipe is a tube or hollow cylinder for the conveyance of
fluid. The terms 'pipe' and 'tubing' are interchangeable.
Both "pipe" and "tube" implie a level of rigidity and
permanence, whereas a 'hose' is usually portable and
flexible. Pipe may be specified by standard pipe size
designations, such as Nominal Pipe Size, or by nominal,
outside, or inside diameter and wall thickness. Many
industrial and government standards exist for the production
of pipe and tubing.
OUR VISION
The manufacturing of pipe uses many materials including
ceramic, metal, and plastic.
Pipe may be made from a variety of materials. In the past,
materials have included wood and lead (Latin plumbum, from
which we get the word plumbing).
Metal pipes are commonly made from unfinished, black
(lacquer), or galvanized steel, brass, and ductile iron.
Copper tubing is popular for plumbing systems.
OUR MISSION
Plastic tubing is widely used for its light weight, chemical
resistance, non-corrosive properties, and ease of making
connections. Plastic materials include polyvinyl chloride
(PVC), polyvinyl dichloride (CPVC), polyethylene (PE),
polybutylene (PB), and acrylonitrile butadiene styrene
(ABS), for example.
Pipe may also be made from concrete or ceramic. These pipes
are usually used for low pressure applications such as
gravity flow or drainage.
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