What is the difference between PVC fitting and CPVC fitting?
PVC is polymerized by vinyl chloride monomer (VCM). PVC material has the characteristics of non-toxicity, anti-aging and acid and alkali resistance, so it is very suitable for the use of chemical pipelines. The mixture consisting of a certain amount of solid additives (without plasticizer) added to the raw material of PVC is called rigid polyvinyl chloride (UPVC).
CPVC is a macromolecule material modified by chlorination of polyvinyl chloride (PVC). After chlorination, the chlorine content of PVC resin increases from 56.7% to 63-69%, which increases its chemical stability, thus improving its heat resistance, acid resistance, alkali resistance, salt resistance and oxidant corrosion. Its thermal deformation temperature and mechanical properties are higher than those of UPVC. Many. Therefore, CPVC is one of the best engineering materials for industrial pipelines.
Differentiation from PVC
1. Different chlorine content
PVC (polyvinyl chloride) chlorine content: 56%
CPVC (chlorinated polyvinyl chloride) chlorine content: 67%
2. Vicat temperature (thermal deformation temperature): The higher the Vicat temperature, the better the performance.
The Vicat temperature of general CPVC and PVC:
PVC: Vicat temperature 71-75 degrees Celsius
CPVC: Vicat temperature 100-125 C
The Vicat temperature of CPVC for raw material JC-701 is between 124 and 128 degrees centigrade.
The Vicat temperature of pipe fittings is 103 ZS-601. The Vicat temperature of CPVC is 121 125.
The processing fluidity (rheological property) of pipe fittings is higher than that of pipe. The Vicat temperature of pipe fittings is lower than that of ordinary pipe by adding additives.
3. Strength of drop weight test is 2 times or more higher than that of ordinary PVC.
4. Water pressure test is higher than ordinary PVC.
PVC fitting and CPVC fitting have the characteristics of corrosion resistance, impact resistance, non-deformation, smooth inner wall, non-scaling, good thermal insulation, non-conductive, easy bonding and long service life. Therefore, it gradually replaces other metal pipeline systems in the advantages of high cost performance and low construction cost. Moreover, PVC fitting and CPVC fitting are easy to maintain and maintain without long downtime, which causes huge losses. Therefore, PVC fitting and CPVC fitting are the first choice in current industrial pipeline design.
The maximum allowable service temperature of PVC fitting is 60 C, and the long-term service temperature is 45 C. It is suitable for conveying corrosive media whose temperature is lower than 45 C. It can also be used for conveying common pressure fluid, such as water supply and drainage pipeline, agricultural irrigation pipeline, environmental engineering pipeline, air conditioning pipeline, etc.
The maximum allowable service temperature of CPVC fitting is 110 C, and the long-term service temperature is 95 C. It is suitable for conveying hot water and corrosive media within the allowable pressure range. Generally used in petroleum, chemical industry, electronics, power, metallurgy, paper making, food and beverage, medicine, electroplating and other industrial fields.
Shijiazhuang xingyin import and export trade Co., Ltd. is a professional PVC pipe fitting manufacturer, CPVC pipe fitting manufacturer, in China. Our products sell well all over the world.
You can see our products:https://www.pvcpipefitting.com/products/
Our pvc fittings have:PVC FITTING SCHEDULE 40,PVC FITTING SCHEDULE 80,SCHEDULE 40 PVC DWV FITTING ASTM D2665,GB PVC DWV FITTING,GB PVC FITTING WATER SUPPLY,PVC THREAD FITTING BS STANDARD,
PVC Pressure Pipes And Fittings PN10 (DIN),PVC GASKETED FITTING (Push-Fit),PVC ELECTRICAL CONDUIT,