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        location:HOME > Good material > Strict inspection

        FAX:0533-7688068 
        ZIP:255410 
        ADD:NO.6,QINGTIAN ROAD,QILU CHEMICAL INDUSTRIAL ZONE,ZIBO,SHANDONG,
        CHINA

        Strict inspection
         
        Hydrostatic strength of  pipe
        (80℃,165h)
        no breakage, no leakage
        Elongation at break of pipe: ≥350% min. Oxidation induction time ( thermal stability ) of pipe: 20 minutes min.
        Longitudinal reversion rate of pipe
        (110℃)≤3%
        Hydrostatic strength of  fitting
        (80℃,165h)
        no breakage, no leakage
        Oxidation induction time
        (thermal stability) of fitting≥20 minutes min.
        Cohesive resistance for electro fusion fittings:stripping percentage of brittle failure:≤33.3% max Tensile strength for butt fusion fittings
        Test to failure
        Ductile;pass
        Brittle:fail
        Electrical resistance
        Nominal value X0.9≤Electrical resistance≤Nominal value X1.1+0.1Ω
         
        Appearance of pipe Outside diameter of pipe Wall thickness of pipe
                        Out-of-roundness of pipe Appearance of fitting Outside diameter of fitting
                        Wall thickness of fitting Out-of-roundness of fitting terminal Testing electrical resistance of electrofusion fittings one by one
         
                        Melt mass-flowing rate for PE thermal stability for PE Density for PE
                        Volatile content for PE Water content for PE Carbon black content for PE
                        Carbon black dispersion for PE Component resistance to gas Resistance to slow crack growth
         
        Superior quality material
         
         
         
         

         

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