Is the PPR tube and the PPR composite pipe the same thing?
Composite pipe second advantages to the ordinary pure plastic PPR tube with the hot water to go for a long time will be bending (creep), affect the appearance, but after adding a layer of aluminum layer is not bent, with the more beautiful.
Because the average pure PPR plastic pipe is difficult to completely block the oxygen and light, so easily lead to drinking water, easy to breed bacteria, after adding a layer of aluminum layer can be completely oxygen resistance light resistance, avoid the occurrence of this phenomenon, this is one of the advantages of PPR composite pipe.
The PPR water supply pipe is pure plastic, using type three tortoise copolymerized polypropylene as raw material.PPR composite pipe is based on pure plastic pipe, and the middle layer is covered with an aluminum layer.
PP-R full name random copolymer of polypropylene is a new type of plastic product developed and applied in Europe in the early 90s. The product uses the gas-phase copolymerization method to make the 3%-5% material around PE randomly polymerized at random in the molecular chain of PP to form random copolymers. PP-R pipe is hot water conveying 70 DEG C, and it has a long term pressure of 1.0Mpa. The service life is 50 years. It is the most suitable material for water supply in the pipeline system.PP-R steady-state aluminum plastic composite pipe is a composite pipe with five layers, is the PP-R pipe through the organic combination of special hot melt adhesive and aluminum layer under high temperature, forming a special composite structure of polypropylene - hot melt - hot melt - Polypropylene - aluminum layer, the outer layer of the PP-R material can ensure the material performance in water and health in the application, wherein the inner layer is close to the average size of PP-R PP-R, is the main bearing body, and the middle layer of aluminum to strengthen the protective effect. It combines the advantages of plastic pipe and metal pipe in one, while both the plastic tube health and sealing and metal pipe rigidity, has higher strength and more stable mechanical properties, the linear expansion coefficient is a common PP-R tube 1/5, close to the metal tube, with high stability and safety the.
