The first way to distinguish these materials is to find out what they are.
CPVC
CPVC is a polymer material modified by chlorination of polyvinyl chloride (PVC). After chlorination of PVC resin, the chlorine content increases from 56.7% to 63-69%, which increases the chemical stability and improves the heat resistance, acid, alkali, salt, oxidation and corrosion resistance of the material.
PVC
A certain amount of solid additives (without plasticizer) are added to PVC raw materials, consisting of a mixture called rigid polyvinyl chloride (UPVC).
Introduction to piping system
PVC-U and CPVC piping systems are corrosion-resistant, shock-resistant, not deformable, have a smooth inner wall, cannot be scaled, have good insulation, do not conduct electricity, are easy to bond, have a long service life and other characteristics.
Therefore, UPVC and CPVC piping systems are gradually replacing other metal piping systems due to the advantages of high profitability and low construction cost. Moreover, uPVC and CPVC piping systems are convenient and quick to maintain, do not require long shutdowns and result in huge losses. Therefore, PVC-U and CPVC piping systems are currently the best choice for industrial piping design.
The maximum allowable working temperature of UPVC piping system is 60℃, and the long-term working temperature is 45℃. It is suitable for transporting some corrosive media below 45℃; It can also be used to transport general pressurized liquid, which is commonly used in water and drainage pipes, agricultural irrigation pipes, environmental engineering pipes, air conditioning pipes, etc.
The maximum allowable working temperature of CPVC piping system is 110℃, and the long-term working temperature is 95℃. It is suitable for supplying hot water and aggressive media within the standard allowable pressure range. Commonly used in petroleum, chemical, electronics, electric power, metallurgy, paper making, food and beverage, medicine, electroplating and other industries.
