Specification:GB15558.2, GB13663.2, ISO4437, ISO4427
SDR: 17 PN: 1.0
Shape: Reducing, equal
Culours: Blue or black
Applications: Gas supply, water supply, industrial liquids transportation and sewage treatment
It can resist the corosion of many chemical mediums, except for few strong oxidants.
Longevity of Service
It has an excellent resistance to (slow crack growth)SCG and (rapid crack progration )RCP and can deal with the effect of ambient temperature changes and human factors effectively. It can be used more than 50years.
The high_toughness adapts it to uneven sediment of the pipe base even earthquake.
The strength of the joint is higher than the joined pipes. It can provide a fine airtight performance.
It can be connected with pipes or fittings of all specificanions and dimensions, which are the same in SDR and made from the same material. It also can be connected with pipes or fittings with same kind and class of materials but with different grades.
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