VALVE Russian patent published in 2000 - IPC

FIELD: pipeline control fittings. SUBSTANCE: valve is intended for using different production lines of heat and electric power plants and hydroelectric power plants, particularly in control systems of steam condensate level in high-pressure heaters and low-pressure heaters of turbine plant regeneration system. Valve has body, inlet and outlet branch pipes with flanges, moving and stationary cut-off discs positioned on common axle and provided with through holes, and drive in form of rack gear. Gear rack is arranged in body, and its pressure rod is sealed in body by means of stuffing- box seal. Gear thread is made on moving cut-off disc. Outlet branch pipe, stationary cut-off disc, body and inlet branch pipe are tightened to one another in succession by means of flange connection. Part of axle conjugated with moving disc carries eccentric. Axis of eccentric is shifted to side opposite to rack. EFFECT: enhanced reliability of operation. 3 dwg