FIELD: railway transport; brake system equipment; brake release of separate railway unit. SUBSTANCE: valve has plate shutoff member 3 with bead 10 supporting sealing ring 4 at side of valve seat 2 and embracing outer side surface of valve seat 2 for turning plate shutoff member 3 relative to point of thrust of bead 10 against outer side surface of valve seat 2. Plate shutoff member 3 is rigidly connected with pusher 5 and is loaded by spring 7 installed in valve housing towards valve seat. EFFECT: possibility of setting valve into operation without special orientation of valve relative to drive. 4 cl, 2 dwg
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