meishengchao
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pm www | wpc deck (5th Jul 17 at 6:28am UTC)
wpc | Quote Reply | {Most of the family's washbasin is a water pipe connected to cold water, a water pipe connected to hot water, the time after a long time but found that hot water pipe is easy to bad, and the water is getting smaller and smaller! Especially in the northeastern region, hot water pipe burst probability is greater than the cold water pipe. Why is this? Is the quality of hot water pipe is not good? In China, a large number of people are using PPR pipe as a hot water pipe, not the quality of this pipe is not good, but PPR pipe is not suitable for hot water pipe!stainless steel pipe seamless 304 or 316l material It is understood that PPR tube due to the production of raw materials, polypropylene molecular characteristics, whether it is imported or domestic, there are high temperature performance and poor linear expansion coefficient and other shortcomings. Therefore, the Ministry of Construction [2001] No. 54 document expressly stipulates that PPR pipe long-term working temperature can not exceed 70 ��. In general, PPR plastic pipe temperature range of 5-95 ��, less than 5 �� brittle burst, higher than 60 �� safety performance and reduced service life. And its thermal expansion coefficient in the high temperature and 40 ��, the pipeline is easy to deformation due to expansion.201 stainless steel pipe price per kg Production of raw materials to determine the PPR plastic pipe used as a variety of hot water pipe defects in the hot water for a long time under the erosion, the pipe will become soft deformation gradually lead to the impact of normal water leakage. Like the winter when the northeastern region, plastic pipe rupture of the phenomenon of endless, great day and night temperature difference and hot and cold alternately in the accelerated aging of PPR pipeline. At the same time, in the hot water erosion, PPR pipe is more likely to precipitate the plastic pipe itself with plasticizer, harmful to the body of chemicals, the secondary pollution of household water is more serious.���ѧӧ�է�ܧѧ� ��֧ߧ� �ݧڧ��� �ڧ� �ߧ֧�اѧӧ֧��֧� ���ѧݧ� ASTM Since 2016, the pipeline market is suitable for home improvement hot water pipe only a hundred years of stainless steel pipe! First talk about why it is stainless steel pipes. According to the measured, the general situation, the working pressure of stainless steel pipe system up to 2.5Mpa or more. Its thermal conductivity is low, is brass 1/25, iron pipe 1/4, the insulation effect is the best of all metal pipes, and can be -40 �� ~ 120 �� temperature range of long-term use. Home water temperature is also the highest 100 ��, in the country, the lowest outdoor temperature when most of them will not exceed -40 ��. Stainless steel water pipe to do the advantages of hot water pipe is much higher than the plastic pipe.stainless steel tube internal threaded with great price
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