Test stand for the diagnosis of axial piston pumps. This paper presents main diagnostic parameters of hydraulic pumps. Units of the test stand for axial piston pumps diagnosis have been described. The research capabilities of the stand has been presented as well as some examples of carried out experiments with their results.

Experimental model of the active face seal. The paper describes the model of an active face seal and presents some research results. In the identification of the test non-contact seal has been determined its static and dynamic characteristics. It can be concluded that the active non-contact seals is a non-linear system.

Hydrodynamic force in characteristic of the pressure valve. The forces acting on the closure part of the pressure valve have been described. The dominant role of this force in opening and closing process of the valve has been pointed out. Sample calculations have been performed and compared with the test results.

Development of scientific and research infrastructure. The Operational Programme Innovative Economy (OP IE) is one of the instruments for the implementation of the National Strategic Reference Framework (NSRF), supporting the economic development and employment in Poland. The individual project within OP IE Research and Development infrastructure (R&D), partially implemented by the Kielce University of Technology, has been described.

The hydraulic drive pipe rupture – experimental tests. In the paper experimental tests of the typical pipe rupture valve are presented. Especially, the dynamic response of the system are taken into consideration. The unfavorable effects connected with work of the valve are described. To avoid them the pressure valve has been included to the system. The experimental tests have been done as well.