ACR Copper Fittings Sizes Guide: 1/8″–4-1/8″ | ASME/EN Compliant

ACR copper fittings are critical components in air conditioning and refrigeration systems, where precise sizing is paramount for efficient refrigerant flow and system integrity. The sizes of ACR fittings are typically measured by the outer diameter (OD) of the copper tube, with common sizes including 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, and 1-1/8″. These sizes correspond to the nominal tube size and are standardized to ensure compatibility across different manufacturers and systems. Understanding ACR copper fittings sizes is essential for engineers and technicians to select the correct fittings for a given application, preventing leaks and ensuring optimal performance. Our ACR fittings are manufactured with high precision, adhering to stringent tolerances to guarantee a perfect match with copper tubes. The fittings are available in various configurations, such as elbows, tees, and couplings, each designed to facilitate specific connection needs. Additionally, our fittings are compliant with international standards, including ASME B16.22, EN12541, and AS 3688, ensuring they meet the rigorous demands of global markets. By choosing our ACR copper fittings, you benefit from decades of manufacturing expertise, eco-friendly materials, and a commitment to quality that ensures long-term reliability in even the most demanding environments.