Views: 14 Author: Site Editor Publish Time: 2018-09-26 Origin: Site
The use of PVC pipes and PVC pipe fittings are becoming more and more common. Anyone who has used PVC pipes knows that PVC pipe elbow have an important role for the entire pipe. Without it, PVC pipes cannot be used as a whole. So do you understand them? Do you know what types of PVC elbow fittings are available? The following will give you a detailed introduction.
PVC is the abbreviation of (Polyvinylchlorid). Its main component is polyvinyl chloride, adding other ingredients to enhance its heat resistance, toughness and ductility. The top layer of the surface film is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is the back coating adhesive.
The main types of PVC pipe elbow joint are: direct head of internal thread, direct head of external thread, internal thread pipe joint, external thread pipe joint, inner thread elbow, external thread elbow, three thread of internal thread and three thread of external thread. Direct connection, three links, PVC 90 degree elbows, PVC 45 degree elbows and so on can be used between the same caliber pipe and the pipe.
PVC pipe is a kind of PVC hard PVC tube, which is extruded by hot pressing after the combination of PVC resin with stabilizer and lubricant. It is the earliest plastic pipe for development and application. The PVC-U tube has strong corrosion resistance, easy adhesion, low price and hard texture, but it is suitable for the water supply system that is not more than 45 C due to the exudation of PVC-U monomer and additive. Plastic pipes are used for drainage, waste water, chemicals, heating fluid and coolant, food, super pure liquid, mud, gas, compressed air and vacuum system.
PVC can be divided into soft PVC and hard PVC. Hard PVC accounts for about 2/3 of the market and soft PVC accounts for 1/3. Soft PVC is generally used in the floor, ceiling and leather surface, but because the soft PVC contains plasticizer (this is the difference between soft PVC and hard PVC), the physical performance is poor (such as the water pipe needs to bear certain water pressure, soft PVC is not suitable for use), so the scope of its use is limited. Hard PVC does not contain plasticizers, so it is easy to form and has good physical properties, so it has great development and application value. In the production process of PVC materials, some additives, such as stabilizers, plasticizers and so on are bound to be added. PVC pipes are also non-toxic and environmentally friendly if environmentally friendly additives are used.
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