Analysis of the overall design of high-pressure ball valves
The overall structure of the high-pressure ball valve is compact, easy to install, material-saving, and easy to install and manufacture and use. The handle is limited to 90° rotation range, just to realize the opening and closing of the high-pressure ball valve; the pre-pressure disc spring relies on pre-compression to achieve the initial specific pressure between the valve seat and the ball, so that the high-pressure ball valve can also ensure sealing at low pressure; the valve cover relies on bolts to press the valve body and seal ring, relying on the ferrule way to connect with the pipeline, this structure can better ensure the sealing effect.
The structural design and strength check of the high-pressure ball valve is the most important part of the high-pressure ball valve development process, not only to consider the structural requirements, but also the strength requirements, sealing requirements, material costs, processing technology and assembly size chain and other issues.
In fact, the bolt, bonnet, disc spring, packing, seal, ball and other parts and structures require detailed design and calibration; in addition, the design of the fit between the packing and stem and body at the valve stem, the design of the dimensional chain of the seat, ball, pre-pressure disc spring, body and bonnet connection is also a key step to ensure the seal of the high-pressure ball valve.
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