Clamp connection:
This is a fast connection method, it only need two bolts, suitable for the regular demolition of the low-pressure valve.
Inner self tight connection:
The above all kinds of connection form, is to use the external force to counteract the pressure of the medium, to achieve the seal. Use of medium pressure from the form of tight connection, the sealing ring is provided on the inner cone, with the media opposite side into a certain angle, medium pressure to pass within the cone, then passed to the ring, in the angle of the cone, resulting in two components, a and the center line of the body parallel to the outside, another pressure to the body wall. Force behind this is that since the tightening force. The greater the medium pressure, the greater the self tightening force. So this connection type, suitable for high pressure valve. It is more than the flange connection, to save a lot of material and manpower, but also requires a certain preload, so that the pressure in the valve is not high, the use of reliable. The use of self tight sealing principle made of the valve, generally high pressure valve.
There are many forms of valve connection, for example, some do not have to remove the small valve, welding together with the pipe; some non-metallic valve, using a socket connection, and so on. Valve users should be treated according to the specific circumstances of the.
