CPVC (Chlorinated Polyvinyl Chloride) and UPVC (Rigid Polyvinyl Chloride) pipes under the PVC type.
Chlorinated polyvinyl chloride (CPVC) pipe, also known as (poly)perchloroethylene, is made by chlorination modification of resin, a new type of engineering plastic. The product is white or light yellow odorless, odorless, non-toxic loose particles or powder, with good heat resistance, aging resistance, and chemical corrosion resistance.
It is mostly used as hot water pipes, waste liquid pipes and sewage pipes abroad, and it is mostly used for power cable sheathing in China. In addition, it is also widely used in the electronics industry.
Unplasticized polyvinyl chloride (UPVC) pipe, also known as rigid PVC pipe
, is synonymous with PVCU. It is composed of amorphous thermoplastic resin made by polymerization of vinyl chloride monomer and certain additives (such as stabilizers, lubricants, fillers, etc.).Light weight, corrosion resistance, low resistance, good self-extinguishing performance, low price, low strength, large expansion coefficient, etc. are all its characteristics! The melt viscosity is high and the fluidity is poor. Even if the injection pressure and melt temperature are increased, the fluidity will not change much. According to the nature of pvc pipes, most of them are used in urban water supply (non-drinking water), drainage pipes, rainwater pipes, ventilation and other positions.
Polyethylene (PE) pipes are large and thicker, thicker than PVC pipes, and there are quite a few types, but they are divided by density. High-density polyethylene pipe (HDPE) features: high strength, rigidity and heat resistance. Suitable for urban gas and water supply pipelines. Medium-density polyethylene pipe (MDPE) features: strong rigidity, strength, good flexibility and creep resistance. Low-density polyethylene pipe (LDPE) features: flexibility, elongation, good impact resistance, chemical stability and excellent high-frequency insulation performance. It is suitable for use in rural areas for water supply, irrigation, drinking water pipelines and protection sleeves for power, cables, and post and telecommunications lines. Generally speaking, the pe tube is hygienic, clean, odorless, has good hygienic properties, and the material is non-toxic, non-scaling, and meets the drinking water hygiene indicators! Moreover, it is resistant to general acid and alkali corrosion, has a large range of pipe diameters and low flow resistance.
Type III polypropylene (PP-R) pipe is commonly known as Type III polypropylene, which is the third generation of modified polypropylene. That is, the gas phase copolymerization method is used to randomly and uniformly polymerize PE in the PP molecular chain, so that it has better impact resistance, temperature resistance and creep resistance, and has become the main force of water pipe materials.Now most of the plastic pipes for domestic water are basically all PPR pipes, which are resistant to high temperature, soft and pressure resistant, hygienic, long life, and recyclable! Available for hot and cold drinking water supply systems, purified water and pure water pipeline systems, beverage production and delivery systems, hot water heating systems, air conditioning systems, industrial fluid delivery systems, compressed air pipeline systems, gardens and greenhouse irrigation in civil and industrial buildings System and so on.