CPVC (chlorinated polyvinyl chloride) pipe is a rigid plastic tubing engineered for hot water distribution, capable of handling temperatures up to 200°F while maintaining structural integrity. CPVC is manufactured by adding chlorine to PVC resin, enhancing chemical and heat resistance. It is approved by the NSF for potable water applications and meets ASTM D2846 standards.
Technical Specifications
CPVC operates safely between 40°F and 200°F, making it suitable for hot water heating systems. It expands at a rate of 0.45 inches per 100 feet per 100°F temperature change, requiring expansion loops in long runs. CPVC pipe sizes typically range from 1/2 inch to 2 inches in diameter.
HVAC Applications
CPVC is commonly used for hot water distribution in residential heating systems, radiant heating manifolds, and boiler supply lines. Its superior heat resistance compared to PEX makes it ideal for high-temperature water applications.
Installation Methods
CPVC connections require solvent cement (similar to PVC), creating strong permanent bonds. Installation is straightforward and does not require soldering or specialized tools. CPVC costs less than copper but more than standard PVC, offering a cost-effective solution for hot water systems.