Sanitary ball valve

• Main Authors: ZHANG KEWEN, WANG JIAHAO, SUN ANYUAN, YANG GANG, WANG YANGFENG
• Format: Patent
• Language: English
• Published: 25.02.2015
• 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 relates to a ball valve, in particular to a sanitary ball valve used in the field of medicine. According to the technical scheme, the sanitary ball valve is characterized in that the diameter of a through hole formed in a valve element is equal to that of a flow channel in a valve body, sealing pieces are arranged in the valve body and are located at the left end and the right end of the valve element, each sealing piece is provided with a round hole, the diameter of each round hole is equal to that of the flow channel, the round holes and the flow channel are coaxial, when the ball valve is opened to the maximum extent, the through hole, the round holes and the flow channel are located on the same central axis, one end of a valve rod is fixedly connected with the upper end of the valve element, and at least two seal rings are arranged between the valve rod and a valve deck. By the adoption of the technical scheme, the defects of the prior art are overcome, the problem that by the adoption of an original ball valve, a seal dead angle exists, so that liquid stays is solved, retention caused by seal is avoided, and the application environment of the ball valve is greatly improved.