pvc pipe drying conditions: usually do not require drying. Melting temperature: 185 ~ 205C. Mold temperature: 20 ~ 50C. Injection pressure: can be as large 1500bar holding pressure: can be as large as 1000bar injection speed: To avoid material degradation, the general use of the injection speed considerably. Runners and Gates: All conventional gate can be used. If the processing of smaller components, it is best to use the tip gate or sneak into the gate; for thicker parts, it is best to use the fan gate. The minimum diameter of the tip gate or sneak into the gate should be 1mm; fan gate thickness not less than 1mm. Typical uses: water supply pipes, home pipes, house siding, pvc pipe business machine housings, electronics packaging, medical devices, food packaging. PVC pipe connections are mainly gasket, bonding and flanged three kinds. Greater than or equal to 100 mm diameter pipes commonly used Aprons interfaces; less than 100 mm diameter pipes are generally used bonding agent pvc pipe fittings, and some loose-fitting. When crossing sewer pipes or other pipes, metal pipes are normally used, then the plastic pipe and metal pipe flange connection. Before and after the valve is connected to the pipe flange connection are also used. When a small-diameter pipeline by solvent bonding, shall socket at the back of small rounded to form a groove, and to ensure smooth and perpendicular to the axis of the fracture, so as to bond securely to prevent leakage. 2 generally greater than or equal to 100 mm diameter PVC pipes are used Aprons interfaces. Must arrange before installing the tube socket parts chamfering, also check if the quality apron. You must wipe socket, apron, etc. When installing clean. 3 traditional pipeline trench excavation requires only able to install the pipe into the trench and can be sealed can, in the absence of the original loose soil, compaction can not pressurized cushion. From the early 1980s metal pvc pipe, the country to promote the use of upvc pipe, and developed a series of policies, systems, standards, Qingdao pvc pipe, and has accumulated a lot of experience. To today, already have a sound product standards, test method standards and testing methods, construction engineering and technical specifications, so as to unify the standard size and quality indicators, to achieve a product interchangeability. This shows that the development of pvc water supply pipe has entered a mature stage, the product quality and construction quality are guaranteed, thus ensuring the use of effects pvc water supply pipe. The water supply pipe pe international standard (ISO4427) was officially released until 1996. Our reference in 1999 to write the national standard ISO4427 GB / T13663, and promulgated in 2000, but has standard pe pipe fittings, engineering and other technical specifications continues perfected. This shows that domestic pe pipe quality has not been stable, pipe fittings supporting not perfect, and therefore can not ensure the production, construction quality. 4 inch pvc pipe, pvc pipe, sea Widex Widex provided by Qingdao Rubber Material Co., Ltd. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) strong, credible, in Qingdao, Shandong industrial products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sea Widex and you work into the brilliant, for a better future!