How Cutting Ring Tube Connectors Work

Cutting Ring Fittings have been developed and designed for the reliable, leak-free connection of metric tubes with outside diameters between 4 mm and 42 mm.

Their operating principle of STAUFF Cutting Ring Fittings is based on a double-edge cutting ring, which cuts into the tube twice, thus ensuring the necessary force and form closure in the cutting area.

Thanks to the optimised geometry of this ring, the two edges do not cut simultaneously, but rather one after the other. In addition to increasing the incising effect, this method maximises the tear strength of the fitting.

Due to the design of the double-edge cutting ring in the central region as well as in the shoulder area, a larger tube support surface with a high surface pressure is achieved without jamming the cutting ring. This ensures uniform distribution of force. The outer support surfaces of the cutting ring are smoothed, thus minimising friction losses during assembly and guaranteeing
the maximum degree of safety during use.