The characteristics of the flexible interface 1 ductile iron pipes.
Sealed performance is good because the rubber ring is press press, and the surface of the pipes in the socket and pin closely joint surface, and can obtain good air tightness and water seal.
With flexible due to the rubber elastic, cast
pipe socket and pressure in surface fish, thus obtained can be flexible, make the pipe well adapted to a modicum of foundation settlement or vibration.
Has a good scalability due to the changes of temperature, so the pipes produced telescopic easily absorbed by it, don't need special expansion joint.
Simple construction quickly using simple tools (
Ratchet wrench or screw steel)
Can be quickly and safety of assembling work.
In addition, after the installation can be directly add backfill soil.
5 countries is not easy to aging of rubber, rubber almost completely embedded in socket inside groove, showing a little, little contact with oxygen, and therefore little risk of aging.
Can prevent the influence of electrochemical corrosion of the interface rubber, let each other between each cast pipe insulation.
Thus the effect of electrochemical corrosion.
But cast pipe interface easily from the characteristics of flexible interface structure, its from friction can't be great.
Therefore, in the output function of tube end and pull the place such as elbow, tee, reducer, part must take appropriate protective measures.
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