TUFFLOK Products and Aluminum Tubing

TUFFLOK connectors and products are designed to be installed on copper pipes that comply with the ASTM B280 standard.

TUFFLOK recognizes that the AC&R industry has utilized the installation of aluminum tubing, which has not fared well under insulation and in less-than-optimal environmental conditions in some instances. Most of the time, damage to aluminum pipes occurred due to non-EPDM insulation. The leached chemicals from non-EPDM insulation create pin holes in aluminum pipes over time, contributing to refrigerant leakage. 

TUFFLOK provides a solution for repairing AC&R systems with aluminum pipes. TUFLOK connectors are compatible with aluminum pipes manufactured using 6061-T4 alloy to the ASME B31.5 ASTM B210/B210M-19a standard.

When aluminum pipes are being repaired, the warranty only covers the cost of the couplings provided by TUFFLOK.

In the best interests of the contractor and equipment owner, when TUFFLOK fittings are used for aluminum repair, TUFFLOK requires that all repaired joints be wrapped and insulated appropriately using a method provided by TUFFLOK in its installation training guide.

We recommend replacing any damaged section of aluminum pipe with copper pipe for optimum performance.