Copper pipe is a rigid or semi-rigid tubing made from copper metal, widely used in HVAC and plumbing systems for refrigerant lines, water supply, and drain applications. Copper offers excellent thermal conductivity, corrosion resistance, and durability, with a typical lifespan of 50 to 70 years. It is available in three grades: Type K (thickest, outdoor use), Type L (medium, general purpose), and Type M (thinnest, indoor use).
Technical Specifications
Copper pipe sizes range from 1/4 inch to 2 inches in diameter for HVAC applications. It conducts heat efficiently and maintains structural integrity in temperatures from -50°F to 250°F. Copper’s naturally antimicrobial properties prevent bacterial growth, making it suitable for potable water lines.
Applications in HVAC
Copper is the industry standard for refrigerant lines in air conditioning and heat pump systems. It is also used for chilled water lines, hot water distribution, and condensate drain lines. Most jurisdictions require copper or approved alternatives for these critical connections.
Installation Considerations
Copper pipe requires soldering (sweat fittings) or compression fittings for connections. Professional installation is recommended to ensure proper joint integrity and system performance. Copper costs more than plastic alternatives but provides superior longevity and reliability.