Chlorinated polyvinyl chloride (CPVC) is a unique polymer after polyvinyl chloride chlorination. Ordinary PVC molecular chlorine content is 45%, while CPVC molecules chlorine content is about 64% to 68%, up to more than 70%. CPVC tensile capacity is higher than the UPVC, PP, PP - B, PP - R H, PB, HDPE, PE, PE – X RT, etc.; its thermal expansion coefficient is lower than the PP, PE, PB; thermal conductivity is lower than that of PP, PE, PB and metal pipe; the temperature resistance and resistance to deformation ability is better that that of PP, UPVC, ABS and HDPE.
CPVC pipes are designed in copper tube size from 1/2” to 2”, with two kinds of standards in dimensional ratios, SDR-11 and SDR-13.5. The fittings are designed with standard SDR-11. SDR13.5 pipe match the standard ASTM F442. The specification of those products, which covers requirements, test methods and methods of marking of components made in one standard dimension ratio and intended for water service, can match the standard ASTM D2856.
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