Be sure to say three, it should be: PPR, PVC, PE
1. Commonly used plastic pipes are: PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (heat-resistant polyethylene), PE (polyethylene) \HDPE (reinforced high-density polyethylene) ethylene), etc.
Second, the size of plastic pipes is generally expressed in terms of outer diameter. Such as PPR tube: De63
3. The service life of MF BALL VALVE X9011 is determined according to GB/T18252-2000 “Plastic piping system – Determination of long-term hydrostatic strength of thermoplastic pipes by extrapolation”. This is a method of statistically extrapolating and predicting the long-term strength properties of thermoplastic materials or articles from the results of hydrostatic strength tests of pipes. *Most of the above use this method to calculate, under the temperature condition of 20 ℃, the plastic pipe generally has a lifespan of 50 years.
Fourth, the molding equipment for plastic pipes is an injection molding machine, which is molded into pipes by the injection molding machine.
5. There are generally two ways to connect plastic pipes: hot melt and glue.
6. The standards for plastic pipes mainly include:
1. PPR (polypropylene): GB/T18742.1, GB/T18742.2, GB/T18742.3
2. PVC (polyvinyl chloride): GB/T10002.1-2006, GB/T10002.2-2003
3. PE (polyethylene): GB15558, GB/T13663
4. HDPE (Enhanced High Density Polyethylene): GB/T19472.2-2004
Plastic pipes mainly include PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (heat-resistant polyethylene), PE (polyethylene), HDPE (enhanced high-density polyethylene), etc. The materials used are polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE) and other polymers.
Plastic pipe is a general term for pipes made of plastic materials. Plastic pipes have the characteristics of light weight, sanitation and safety, small water flow resistance, energy saving, metal saving, improvement of living environment, long service life, safety and convenience, etc., and are favored by the pipeline engineering community. In the past 10 years, driven by my country’s macroeconomic development, my country’s plastic pipes have experienced rapid development under the background of the great development of chemical building materials. In 2010, the national output of plastic pipes exceeded 8 million tons, of which Guangdong, Zhejiang and Shandong accounted for 42% of the output. Plastic pipes have many advantages over traditional metal pipes and concrete pipes in many fields, so they have been widely used in many areas.
Post time: Jan-24-2022