GU-25KF type manual high vacuum ball valve

Abstract

The invention discloses a GU-25KF type manual high vacuum ball valve. The GU-25KF type manual high vacuum ball valve comprises two quick-disassembling flanges, the two quick-disassembling flanges areseparately arranged on the left and right end faces of a valve body part through two second bolts, a name plate is arranged on the front face of the valve body part, and first gaskets are connected tothe outer surfaces of the second bolts in a sleeved mode. First seal rings are arranged between the left and right side faces of the valve body part and the two quick-disassembling flanges, and sealing seats are arranged at four corners of an inner cavity of the valve body part. According to the GU-25KF type manual high vacuum ball valve, by arranging a fourth bolt, a valve rod and a handle partare connected through the fourth bolt and an elastic cylindrical pin, so that a ball body, the valve rod and the handle part can form a main driving structure of the valve, the leak-proofness of the high vacuum ball valve is improved, the working stability of the high vacuum ball valve is enhanced, the service lift of the high vacuum ball valve is guaranteed, and the replacement times of the highvacuum ball valve are reduced.

Description

technical field [0001] The invention relates to the technical field of pressure ball valves, and is a GU-25KF manual high-vacuum ball valve widely used in the vacuum field. Background technique [0002] High vacuum valves refer to vacuum system components used to change the direction of air flow, adjust the size of air flow, and cut off or connect pipelines in the vacuum system. High vacuum valve closures are sealed with rubber seals or metal seals. [0003] The high vacuum valve is a valve that realizes the on-off of the air in the pipeline. The traditional high vacuum valve has poor stability when working, and the opening and closing torque is small, which affects the control of the high vacuum valve on the air circulation in the pipeline. The traditional high vacuum valve The service life is short, and it does not have the function of automatically compensating for the wear of the sealing seat, which increases the number of times the user replaces the high vacuum valve. ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a GU-25KF manual high-vacuum ball valve, which solves the problem that the traditional high-vacuum valve does not have the function of automatically compensating for the wear of the sealing seat, the opening and closing torque is small, the life is short, and it is not suitable for work. The problem that the medium is various gases or liquids with acid and alkali

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