CPVC is the product of further chlorination of PVC and is an important modified species of PVC . Due to its excellent characteristics , various pipes , plates , profiles , sheets and other products are widely used in chemical , construction , automotive , and electrical appliances . Chlor-alkali chemical (600618 , stock bar ) . CPVC production capacity of 10,000 tons , will add 80,000 tons in the future , the development prospects is broad . The data shows that the global demand for CPVC is 200,000 tons . North America is the first country to apply CPVC . The Indian market has grown rapidly in recent years , and the demand has increased from 20,000 tons in 2008 to the current 50,000 tons . It is still in the next 2-3 years . 30% increase in speed . In foreign countries , CPVC is widely used for cold and hot water conveyance in industrial housing , office buildings , hotels , hospitals , schools , etc , as well as industrial pipeline waters delivery systems and fire sprinkler systems . Due to the maximum service temperature of 100-105°C , CPVC pipes are particularly suitable for the delivery of hot water in water supply projects and central heating systems . At present , the total domestic CPVC pipe consumption is less than 40,000 tons , which is mainly used in anti-corrosion and electric power materials , and the civil application is less . Compared with the case where 57% of foreign CPVC pipes are used in civilian use , the market potential is large .