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The article shows the dependence of operational characteristics of the electromagnetic valve sealing unit with the metal-to-metal sealing on the availability of valve moving assembly kinetic energy damping. The dynamic factor in compact-sized electromagnetic pneumatic valves was obtained. Experimental research of the wear rate dependency on the damping in the sealing unit was conducted. Deformation of the sealing elements was shown using the finite elements method. The deformation of the valve sealing unit elements with and without damping was obtained