Clamping and pressing type ball valve having integral structure

Abstract

The invention discloses a clamping and pressing type ball valve having an integral structure in the technical field of valves, comprising: a valve body, a socket being arranged at one end, and a valveend clamping and pressing pipe being fixedly arranged at the other end, the valve end clamping and pressing pipe and the valve body being of an integral structure, and an outer convex groove being arranged on the valve end clamping and pressing pipe; and a clamping and pressing pipe fitting, one end being a connecting plug, and the other end being a pipeline port, the clamping and pressing pipe fitting being also provided with an outer convex groove, the connecting plug being inserted into the socket, and the connecting plug and the socket are hermetically fixed by means of full-welding. A clamping and pressing sealing ring is provided in each outer convex groove; the operation can be more convenient; the welding on an installation site is not needed; the open fire connection operation isavoided; the mounting is easier and more convenient; the integral structure is adopted; both pressure and temperature changes are not afraid; the strength is higher; the sealing performance is higher. and leakage is not likely to happen after long-term use in a worse working environment, so that the operation is safer.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a clamping type ball valve with an integral structure. Background technique [0002] Ball valve is one of the most common valves in pipeline medium conveying equipment, mainly used in refrigeration industry. At present, when the ball valve in the refrigeration industry is installed into the refrigeration system, it is connected together through its own socket and the butt fittings in the refrigeration system by welding. Ordinary ball valves need to be welded on-site after the butt fittings are inserted into the sockets of the ball valve during installation. Equipment such as welding machines and oxygen tanks are required, which is cumbersome to operate and carries operational risks. The welding process is complicated and requires skilled workers to hold professional welding skills certificates before they can work, which limits its application and promotion. [0003] Some existi...

AI Technical Summary

Problems solved by technology

The welding process is complicated and requires skilled workers to hold professional welding skills certificates before they can work, which limits its application and promotion

[0003] Some existing ball valves have many welding joints, and the welding joints are relatively brittle. In the working environment of long-term alternating hot and cold and frequent pressure changes, the welds are prone to leakage.

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