FIELD: machine building.
SUBSTANCE: pressure regulator includes housing, in which a pressure inlet is made; cover plate functionally adjacent to the housing, in which a pressure outlet is made, and piston assembly installed between the housing and the cover plate. Piston assembly includes a piston having the head and base with a through channel for connection of the above inlet to the above outlet. At that, piston has receiving surface specified with upper surface of piston, which includes the first area of receiving surface, which is formed with a cavity, for the first functional operating mode, and the second area of receiving surface, which corresponds to the whole piston diameter, for the second functional operating mode. Also, pressure regulator includes a loading element functionally adjacent to the piston to provide the loading force acting on the piston to set the outlet pressure, and gate to be adjoined to annular seat of the valve to control the fluid medium; at that, gate is adjacent with its lateral surface to the piston base.
EFFECT: improvement of regulator characteristics.
19 cl, 2 dwg
