Builders Merchants Journal – BMJ Publishing to Builders Merchants and the UK merchanting industry for more than 95 years
Conex Bänninger unveils high strength copper alloy K65 fittings, designed for high pressure refrigeration applications up to 130 bar.
Developed in conjunction with Wieland, a producer of copper alloy tubing, K65 was created in response to the increased demand for CO₂ R-744 in commercial refrigeration applications, and in particular supermarkets.
As the market phases out high-GWP refrigerants, Conex Bänninger’s K65 braze system provides installers with a lightweight alternative to steel. The material is intended to be simpler to cut, faster to transport, and is available in a wide range of fittings from 3/8” to 2 5/8”.
Standard copper pipe cannot withstand 130 bar, but K65’s copper-iron alloy is engineered specifically for the demands of high-pressure CO₂ systems. With CO₂ offering zero ODP and a GWP of just one, K65 is identifiable by its slightly magnetic property and clear markings.
When professionally installed, K65 fittings are backed by a 25-year guarantee.
