VESSEL VALVE Russian patent published in 1995 - IPC

FIELD: valving. SUBSTANCE: vessel valve has housing with seat and passages, valving member positioned for permitting movement over the thread of the housing, spindle, unit for sealing the spindle constructed as gasket nut and sealing member, and flywheel provided with axial hollow and fitted on the spindle shank. A nut is secured at the end of the shank positioned in the hollow. The nut is positioned in the space of a cap-like washer filled with a plasticizer for sealing. A spring is interposed between the washer and bottom of the hollow. The flywheel has a skirt which covers hexahedral surface of the gasket nut. The hollow of the flywheel is plugged with a polyethylene plug. EFFECT: enhanced reliability. 2 cl, 1 dwg