Two groups of plastic tubing quality spot checks failed was listed in 'HeiBang'

Learns well da plastic products factory in changshu, the anhui province pledges inspect bureau recently reported plastic tubing provincial selectives examination results, two groups of plastic tubing failed was listed in selectiving examination on the quality & other; Quality HeiBang & throughout; 。



in selectiving examination, 40 groups of samples drawn 2 set of plastic tubing is unqualified, sampling percent of pass is 95. 0%. Revelations of unqualified enterprises and products are: plastic technology co. , LTD, anhui concentric Lin on December 6, 2015, the production, the specifications for & other; S4dn25× en2. 8mm” The & other; Concentric Lin & throughout; Random copolymerization polypropylene ( PP- R) Steel tubes; Anhui Kang Jia plastic building materials co. , LTD. , on December 6, 2015 production, & specifications for other S4dn20× en2. 3mm” The & other; Kang Jia & throughout; Random copolymerization polypropylene ( PP- R) Steel tubes.



the expert points out, two sets of plastic pipe products mainly due to the hydrostatic test, the indicators such as average diameter is unqualified. High temperature static hydraulic test is plastic pipe critical mechanics performance index, it reflects the pipes in hot water environment can withstand the pressure size and length of life, can only meet the standard requirements of products to ensure that the pipeline in hot water environment using cycle rupture or leakage phenomenon will not occur. The index is unqualified, shows that the product is not suitable for long-term use in high temperature conditions. Size is one of the important indicators of tubing, and the average diameter of qualified or not will affect the application and construction quality of steel tubes, size unqualified pipe cannot be connected to the pipe well, could reduce the compression strength of the joint at the same time, left a broken line and leakage hidden trouble.