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What are the characteristics of PP duct

Updated:2020-06-04
Summary:

The key material of the P duct pvc fitting is polypropy […]

The key material of the P duct pvc fitting is polypropylene, which is a thermoplastic resin made from propylene polymer. Non-toxic, odorless, odorless milky white high-crystalline polymer, the relative density can only be  the net weight of other materials is not as light as it is. It is worth mentioning that its organic The chemical reliability is very good. In addition to being corroded by concentrated sulfuric acid and concentrated nitric acid, it is stable to various other chemicals, but the low content of aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can make polypropylene soft and swell. At the same time, its organic chemical reliability also gradually increases with the increase in grain size, so polypropylene is suitable for making a variety of chemical pipelines and parts, and the actual effect of corrosion resistance is excellent.

 

pp compression water supply fittings reducing coupling

 

PP duct gate valve can be used in a very large temperature range It bears the pH and is eroded by high-concentration acids and alkalis in the range of . Anti-wear and non-fouling: PP air duct gate valves and tube interiors are well-proportioned and smooth, fluid friction resistance is small and non-fouling reduces vibration And noise: PP air duct gate valve has high-quality sound insulation properties, which can significantly reduce vibration and noise caused by liquid fluidity and cold cracking resistance: PP duct material has high ductility and high quality. It is not easy to swell because it is swollen. Anti-condensation water and less thermal damage: The raw material of the PP air pipe is a poor thermoelectric conductor, which can reduce the problem of condensate water and reduce heat loss. Installation and operation: The PP air duct is very light and easy to install and operate , And has weldability. PP air duct is used for gas conveyor and all over the pipeline system software. The air duct can be classified according to the cross-sectional shape and material.

 

According to the cross-sectional shape, the air duct can be divided into annular ventilation There are many types of air ducts, rectangular frame air ducts, oblate air ducts, etc. At least the ring-shaped air ducts have small frictional resistance and high aspect ratio specifications, and are complicated to manufacture. Therefore, the use of rectangular frame air ducts is dominated. According to the material, Ventilation air ducts can be divided into metal material air ducts, composite air ducts, and polymer material air ducts. At least metal material air ducts are ventilated air ducts made of various metal composite materials, which commonly include galvanized Steel plates and stainless steel plates, etc. PP air ducts are made of a variety of inorganic materials. They are divided into various types according to their different compositions. However, they are mainly made of lightweight concrete, porous structures, and materials with large heat transfer coefficients. Rust, can bear pH in a very large temperature range, the corrosion of highly concentrated acids and alkalis in the range of  anti-wear, no fouling, and the inner cavity of the pipe is symmetrical and smooth, and the fluid friction resistance is small and It is not easy to accumulate dirt.

 

Reduce vibration and noise PP air duct has good sound insulation properties, which can significantly reduce vibration and noise caused by liquid fluidity, prevent cold cracking, and high quality of raw material ductility. The frozen and swelled liquid swells together and is not easy to burst. It is anti-condensate and has less thermal damage. The raw material is a poor thermoelectric conductor, which can reduce the problem of condensate and reduce heat loss. It is light, easy to install and operate, and has Solderability, long service life, system software has a service life of up to 60 years under the required application standards. Key classification of PP air ducts: according to usage Generally: clean management system sent to ventilation ducts, household central air conditioning ventilation ducts , Ventilation ducts for industrial production supply and exhaust systems, smoke and exhaust ducts for environmental protection management systems, mines Use pumping gas pipes, mine-coated ducts.

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