In recent years, frequent reports have been reported on the occurrence of heavy losses caused by the explosion of pure plastic household water supply pipes, which has aroused widespread concern among home improvement users. Faced with the various water supply pipes on the market today, how should ordinary consumers choose? Professionals provide the following suggestions: First look at the health properties of the product. Water pipes must first meet the health needs. The degree of cleanliness of water does not depend entirely on the pollution of the water quality of the pipeline, but also depends on whether the pipeline used can resist the penetration of oxygen from the outside air into the pipe wall. It is well-known that long-term oxygen penetration can easily cause bacteria, scale, and moss to grow in the pipeline, contaminating water quality. Aluminum plastic pipe because there is a layer of metal aluminum in the middle of the pipe, so it can be 100% light-shielded and isolated oxygen, while other plastic pipes such as PP-R can not solve the problem of oxygen permeability, light transmission and so on. Followed by the product's safety and reliability. At present, common household water supply pipes include aluminum plastic pipes, PE pipes, and PP-R pipes. From the material analysis, the aluminum plastic pipe is made of high-density polyethylene sandwiched with aluminum. The melting point of polyethylene is 140°C, so its long-term high temperature resistance Good performance, its supporting use of the nut nut sleeve and steel sleeve pressure pipe fittings, as long as the correct installation, the degree of reliability is very high; PE pipe has a single structure, large linear expansion coefficient and other shortcomings, the overall performance is naturally inferior to aluminum plastic pipe; PP -R Due to the molecular characteristics of polypropylene itself, whether imported or domestic, its poor high temperature resistance and large linear expansion coefficient limit its application. Therefore, Document 54 of the Ministry of Construction [2001] expressly stated that the long-term working temperature of PP-R should not exceed 70°C; however, the hot melt connection process is complicated, and defects in stacking material are easily generated during push-pull, resulting in stress concentration and affecting the long-term performance of the pipeline. The local high temperature of the electric fuse can easily promote the degradation of PP-R and accelerate the aging of the pipeline. Finally, at the time of product purchase, do not easily entrust water workers or some unqualified decoration companies, and pay attention to the actual origin of the products, trademarks, and after-sales service guarantees when purchasing. For example, aluminum-plastic pipes from Guangdong Foshan, Guangdong can provide lifetime commitment to quality, and some small plants do not have this capability at all. 1, home decoration hose commonly used PPR pipes, plastic water pipes, brass, steel pipe prices are relatively higher, and PPR pipe fittings prices are higher than steel pipe fittings, copper pipe prices are the most expensive, the price is equivalent to PPR pipe 4 times or so. 2, home decoration Laying pipes should be avoided from the ground on the shop, preferably from the top or the wall line, the amount of pipe may be slightly increased, but it is conducive to future pipeline maintenance. 3, cold and hot water pipe wall thickness is not the same, cold water pipe can not be used as hot water pipe, hot and cold water pipes is a simple way to distinguish the hot water pipe is marked with a red line. 4. The standard length of PPR pipe is four meters each. When buying, it is necessary to ask whether the price of each pipe is the price of each pipe or the price of pipes per meter. When the pipes are sent to the future, remember to check whether the pipe length meets the requirements. . 5, home decoration hose should pay attention to the pipe diameter and wall thickness, the general manager to use 6 in charge of the branch can choose to use 4 in charge, in order to ensure the amount of water, in charge of 6 can also be used in charge of. 6, home decoration When buying pipes, pay attention to the fitting company pipe diameter is symmetrical, the thickness of the pipe diameter will affect the docking of the two interfaces. 7. The Quality Standard for Home Furnishing Decoration Works of the Building Decoration Industry Association has such a stipulation on the time and pressure of pressure test: Newly installed water supply pipelines must be subjected to pressurization tests in accordance with relevant regulations. The test pressure of metal and its composite pipe is 0.6MPa, and it is regulated for 10 minutes. The pressure drop in the pipe should be no more than 0.02MPa and no leakage. The test pressure of plastic pipe is 0.8MPa and the pressure is 20 minutes. The pressure drop in the pipe should be no more than 0.05MPa. leakage. Entrance decoration Restaurant decoration Home decoration Home decoration Decoration Company decoration Decoration decoration company Home decoration Home decoration Home Disinfection efficacy testing is usually done with planktonic cells or more recently, biofilms. While disinfectants are much less effective against biofilms compared to planktonic cells, questions regarding the disinfection tolerance of detached biofilm clusters remain largely unanswered. Burkholderia cepacia and Pseudomonas aeruginosa were grown in chemostats and biofilm tubing reactors, with the tubing reactor serving as a source of detached biofilm clusters. Chlorine dioxide susceptibility was assessed for B. cepacia and P. aeruginosa in these three sample types as monocultures and binary cultures. Similar doses of chlorine dioxide inactivated samples of chemostat and tubing reactor effluent and no statistically significant difference between the log(10) reductions was found. This contrasts with chlorine, shown previously to be generally less effective against detached biofilm particles. Biofilms were more tolerant and required chlorine dioxide doses ten times higher than chemostat and tubing reactor effluent samples. A second species was advantageous in all sample types and resulted in lower log(10) reductions when compared to the single species cultures, suggesting a beneficial interaction of the species. Agriculture Industry Disinfection Chlorine Dioxide For Aquaculture, Chlorine Dioxide For Poultry, Fish Water Disinfection, Chlorine Dioxide Farm Disinfection Nanjing Ligong Shuifu Environmental Protection Technology Co.,Ltd. , http://www.watermanclo2.com
Water pipe is a concealed project in the home improvement. It is troublesome to repair it. Buying a good quality water pipe can free you from worry. The following small series introduces you to a few tips for choosing a home improvement company's home decoration hose.