GAS PRESSURE REGULATOR Russian patent published in 2002 - IPC

FIELD: automatic sustaining of predetermined level of gas pressure before user in gas supplying systems. SUBSTANCE: gas pressure regulator includes inlet duct and outlet duct opened to user, membrane cutout valve operating at minimum and maximum gas pressure values and having rod indicator and fixation unit; membrane gas reducer with hydraulic feedback circuit and release valve whose axis coincides with axes of membrane cutout valve and valve of membrane reducer. Seats of both last valves are in the form of united single-side seat member having two concentric supporting members. Shutter with sealing member of valve of membrane gas reducer is rigidly connected with rod mounted in flow-through opening of single-side seat. Release valve is combined with membrane cutout valve and it is arranged on rod indicator and fixation unit of said valve. Single-side seat has (at side opposite relative to supporting members) bearing unit for pivot of lever connecting rod with membrane of gas reducer. EFFECT: improved design. 5 cl, 2 dwg