Pump ball-valve

Abstract

The invention provides a pump ball valve, belonging to the valve technical field and solving the problems of the prior pump ball valve including the poorer elasticity of a seal ring and poor seal performance. The pump ball valve comprises a valve body, a valve core, a valve rod and a handle, wherein the valve core is positioned inside the valve body; the inner end of the valve rod is connected with the valve core, while the outer end extends out of the valve body to be connected with the handle; a seal ring is arranged between the valve core and the valve body, and is made of inorganic fiber,inorganic particle and polytetrafluoroethylene, etc.; the inorganic fiber is selected from one sort of carbon fiber and glass fiber; and the inorganic particle is selected from one sort of graphite, molybdenum disulfide and aluminum trioxide. The pump ball valve has better sealing performance and higher stability when used; moreover, after long-time use, the seal ring still has corrosion resistance, aging resistance, low friction coefficient, inadhesion, wide temperature-resistant scope and excellent elasticity.

Description

technical field [0001] The invention belongs to the technical field of valves and relates to a pump ball valve. Background technique [0002] The ball valve is a common valve, which is mainly used for cutting, distributing and changing the flow direction of the fluid medium on the pipeline. The ball valve generally used to connect with the water pump is called the pump ball valve. [0003] With the improvement of the degree of industrialization, the sealing performance requirements on some high-pressure and high-temperature pump ball valves are also getting higher and higher. Existing pump ball valves usually consist of a valve body, a valve stem, a valve core and a handle. The valve body has a water inlet and a water outlet. The valve core is installed in the valve body. The outer end protrudes from the valve body and is fixedly connected with the handle. In order to achieve a better sealing effect, a sealing ring is often provided between the valve body and the ball core...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the above-mentioned problems existing in the existing pump ball valve, and provide a pump ball valve with a sealing ring. High, the sealing ring still has the characteristics of corrosion resistance, aging resistance, low friction coefficient and non-stickiness, wide temperature range and good elasticity after long-term use

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