The purpose of the invention is to create an electromagnetic valve for redirecting of hydraulic media which is, depending on each received signal, used to control operation of at least one appliance integrated into each disposable high-pressure hydraulic circuit with nominal pressure between 50 and at least 150 bar, wherein just water, optionally combined with environmental friendly anti-freezing additives should be used as a hydraulic media in such hydraulic circuit, in which the operating pressure should be at minimum 50 bar up to at least approximately 250 bar. Said electromagnetic valve comprising a housing (1), in which a chamber (3) is available, which is intended to receive a redirecting member (2) and each hydraulic media i.e. the water in this particular valve. Said housing (1) is furnished with at least three connecting openings (A, B, P, T), which are arranged corresponding to each desired function of the valve as such, as well as with an electromagnet (4, 4'), which is arranged in/on said housing (1) and is adapted to cooperate with said redirecting member (2). In accordance with the invention, both the housing (1) at least in the area of the internal sealing surface (30) of the chamber (3) with diameter (D 3 ), and also said redirecting member (2) at least of its external hydraulic sealing surface (20) with diameter (D 2 ), consist of quenched steel, wherein the gap (C) there-between, namely the half difference between the characteristic diameter (D 3 ) of the sealing surface (30) of the chamber (3) and the characteristic diameter (D 2 ) of the sealing surface (20) of the redirecting member (2) should be between 1 μm and to 5 μηι at maximum.