Dr. water pipe, PPR pipe [New Products], PPR pipe

Dr. water pipe, PPR pipe [New Products], PPR pipe provided by the source and the world. We are the source and Trade Co., Ltd. Wuhan Tiandi (ahgangsu com.) In: Wuhan, Hubei specializes in: PPR, PVC, metal ware and Trade Co., Ltd., Wuhan Tande, founded in 2010, specializes in the sales of building materials, PPR, PVC, metal ware . The company mainly operates in Hong Kong, Anhui plastic and Dr. Su Zhoushui two brands. How to choose the right PP-R pipe fittings: 1, pipe fittings appearance. The color should be consistent with the pipe PPR pipe latest products, both inside and outside surfaces should be smooth, flat PPR pipe price, no dents, bubbles and other surface defects affect performance and should not contain visible impurities; pipe surface should be smooth, flat, does not allow cracks, bubbles, peeling and obvious impurities, severe contraction shape and uneven color, discoloration decomposition and other defects. 2, pipe fittings opacity. Pipe fittings should be opaque. 3, pipe diameter and wall thickness of pipe fittings. According GB/T18742.2-2002 national standards, according to the size of the pipe into S5, S4, S3.2, S2.5, S2 five series. Nominal pipe series S and a corresponding relationship between PPR pipe, pipe specifications pipe series S, nominal diameter dn * en nominal wall thickness of said main public inspection pipe nominal diameter, the average outside diameter and pipe wall and the corresponding series thick, tube socket size and the corresponding nominal diameter. 4, pipe fittings physical and mechanical properties and chemical properties. Hydrostatic testing, melt mass flow rate, longitudinal shrinkage rate under hydrostatic state and pipe thermal stability test, Charpy impact test compliance with national standards, inspection reports and re-examination of the contents of the contents of this report can be checked material 5, the health performance pipe fittings are in line with national standards. This inspection report can check the performance of the health inspection department of health pipe fittings. 6, system suitability. After connecting pipes and fittings shall be by pressure within 8760 hours and 5000 thermal cycles test Welcome to the combination of the two companies, the company mainly engaged Dr. Hong Kong and Suzhou, Anhui plastic water two brands, business products PPR, PVC metal ware, Recruitment is now the exclusive distributor monopoly. The sixth generation of the country's first doctoral PPR PPR water pipes --- product, the outermost layer is made from imported raw PPR, it inherits the advantages of the fourth generation PPR pipe manufacturers, can melt connection, you can and fourth generation GM . The middle layer is the fourth generation in order to overcome the shortcomings of intolerance is not high temperature and low temperature research and development out of special materials, ensuring minus 40 degrees cold without cracking, high temperature 100 degrees watertight. The middle layer is made of gears nesting technology to overcome the disengagement between the layers fifth generation phenomenon. The innermost layer is made of nano-technology, anti-bacterial anti-virus.