RADIATOR VALVE AND RADIATOR VALVE SEALING DEVICE Russian patent published in 2001 - IPC

FIELD: sealing radiator valves. SUBSTANCE: valve has body, shut-off member which is movable in axial direction towards valve seat or to opposite side and tappet which is also axially movable and is brought outside through hole in body sealed by means of seal fitted in body embracing the tappet. Sealing chamber is provided on the outside of body embracing the tappet. Sealing chamber may receive additional seal in case of leakage of seal mounted in body. Body has projection for securing the additional seal holder. Provision is made for radiator valve sealing device; above-mentioned additional seal is located in this device on first slide block. Slide block is movable axially. EFFECT: facilitated manufacture; low cost of simple repair in case of leakage. 21 cl, 6 dwg