Industry new
Valve connection type - internal self-tightening connection
All of the above connection types use external forces to counteract the pressure of the medium and achieve sealing. The following describes the self-tightening connection using media pressure. Its sealing ring is installed at the inner cone, and it is at an angle to the side opposite to the medium. The medium pressure is transmitted to the inner cone and is transmitted to the sealing ring. At a certain angle, the cone surface produces two components, one and The centerline of the valve body is parallel to the outside and the other is pressed against the inner wall of the valve body. The force behind this is self-tightening. The greater the medium pressure, the greater the self-tightening force. So this connection form is suitable for high pressure valves. Compared to flanges, it saves a lot of material and manpower, but it also requires a certain amount of preload force so that it can be used reliably when the pressure in the valve is not high. Valves made from self-tightening seals are generally high pressure valves.
There are many forms of valve connection, for example, some small valves that do not have to be removed are welded together with the pipe; some non-metallic valves use socket connections, and so on. The valve user should treat it according to the situation.
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