Eccentric hemisphere valve with vertical full flow passage

• Main Author: XIHONG LI
• Format: Patent
• Language: English
• Published: 06.07.2005
• Edition: 7
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses an eccentric hemisphere valve with the vertical full flow passage. The utility model comprises a valve body, the upper end of the valve body is connected with a valve cover, a valve shaft is vertically arranged on the valve body, the valve shaft is penetrated out of the valve cover and sealed with the valve cover, the valve cover penetrated out of the valve cover is connected with a driving device, the centerline of the valve shaft does not intersect with the centerline of the flow passage of the valve body which is vertical to the centerline of the valve shaft, a hemisphere valve core is connected on the valve shaft, a valve seat is arranged in the valve body, and the inner hole diameter of the hemispherical valve core is not less than the inlet section diameter or the outlet section diameter of the flow passage of the valve body. The valve uses the technical proposal that the inner hole diameter of the hemispherical valve core is not less than the inlet section diameter or the outlet section diameter of the flow passage of the valve body, after the valve is opened, the flow passage does not generate the large to small process, so the generation of the flow passage linear resistance loss when the medium flows away, and the full flow passage control of the hemisphere valve is realized. The utility model is suitable for the hard sealing hemisphere valve and also the soft sealing hemisphere valve.