Cast Iron Drainage Pipe Made in China
Drainage Pipe is used to emissions sewage
waste water and rainwater. The fittings of drainages pipes include
straight pipes, pipe
fittings and auxiliary pipes.
The types of drainage pipes
The types of drainage pipes include flexible interface and rigid
Flexible interface drainage pipe has better resistance to stretching
and anti-seismic property. It has broad applicability.
The antiknock characteristic of rigid interface is worse. In
application, the pipe body will be easily broken, and easily cause
the leakage accidents. It is only fitted for low buildings or
The materials of drainage pipes include cast
iron, cast steel,
cast aluminum, stainless steel, and plastic, of which cast iron is
the most common material.
The advantages of cast iron drainage pipes
1. Low noise, high intensity and long service life
The graphite in cast iron has been useful to the anti-seismic, it
can prevent vibration between crystalline grains and will change
vibration energy into heat energy, so the noise of cast iron
drainage pipe is low. The strength of cast iron is four times of
PVC. Cast iron drainage pipe has better corrosion resistance and
higher strength, so its life time is longer than steel drainage pipe
and plastic drainage pipe.
2. Antiknock characteristic
The linear expansion coefficient of cast iron is lower, and stretch
tensor is small, so cast iron drainage pipes have higher resistant
to stretching, and anti-seismic property.
3. Cast iron pipes can be recycled
Cast iron does not contain toxic
chemicals, no secondary pollution, so cast iron can be 100%
The application of Cast Iron Drainage Pipes
Drainage pipes are used for commercial and industrial drainage
applications. They can also be used on farming properties and rural
Production Process of Drainage Pipes
In China, most of manufacturers use
and centrifugal casting process to produce drainage pipes. Its
surface is smooth, wall thickness is more even, and production
efficiency is higher.
As for the short pipes and pipe fittings, most of
iron foundries in China will
produce them by sand casting
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