Refrigerating ball valve and manufacturing process thereof

Abstract

The invention discloses a refrigerating ball valve and a manufacturing process thereof. The refrigerating ball valve mainly comprises a valve body and a valve seat arranged in the valve body, whereina seal ball is arranged in the valve seat; a rotating rod is arranged on the seal ball; a cap is arranged on the upper part of the valve body; the rotating rod is arranged in the cap; two sides of thevalve body are provided with joints; the joint on one side is screwed with a connection tube, pressed by a screw cap and welded and fixed by argon arc welding; the joint on the other side is connected with the connection tube; a necking is arranged at the connection position for connection; and an O-shaped seal ring, a gasket and a disc spring are arranged at the connection position between the necking and the joint. The manufacturing process comprises the following steps of: connecting an interface on one side of the valve body of the ball valve with the connection tube; arranging the gasketon the interface on the other side, and arranging the O-shaped seal ring and the disc spring on the gasket; and sleeving the connection tube on the interfaces, and shrinking the connection tube to adesigned specification with a pipe-shrinkage machine, wherein a part of the connection tube on the interfaces of the valve body is shrunk and pressed on the interfaces to form the necking. The refrigerating ball valve is suitable to be used for refrigerating machines, refrigerating apparatuses and the like.

Description

technical field [0001] The invention relates to a refrigeration ball valve used in a refrigeration pipeline and a manufacturing process thereof. Background technique [0002] The ball valve in the pipeline of the refrigeration system is a fluid control part, and the application of the ball valve is more and more extensive, and the requirements are getting higher and higher. At present, my country produces small ball valves with low technical content, and mainly low-efficiency ball valves operated by hand. Therefore, the traditional refrigeration ball valve adopts argon arc welding welding process for the ball valve and the connecting pipe in the production process. , The gasket located in the valve body is easy to melt and age, and if there are small air holes, it cannot be repaired. Contents of the invention [0003] The object of the present invention is to provide a conveniently manufactured refrigeration ball valve and its manufacturing process in view of the defects...

AI Technical Summary

Problems solved by technology

Therefore, the traditional refrigeration ball valve adopts argon arc welding welding process for the ball valve and the connecting pipe in the production process. , the gasket set in the valve body is easy to melt and age, and if there are small air holes, it cannot be repaired

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