Abstract: | The paper presents the results of an experimental study upon the dependence between the axial compression force of packing rings and the high where are located the serings. The researches shows an important decrease of axial compression force which stress the packing rings, in the same time with increase of deep where is located the rings. The experimental method that are presented in this work, can be making for packing rings from different materials (asbestos, PTFE, graphite etc.), with different structures, with different values of axial force stressed |