Post by blogsle on Jun 29, 2012 2:30:06 GMT -5
Introduction to a New Kind of the Butterfly Valve
Butterflymold makingvalve, as one of the main types of the prosperous valves, has been widely used in
many fields. It is mainly applied to achieve piping on-and-off injection moldingand flow control.
Generally speaking, it has been popular in the fields of the petroleum, chemical industry, metallurgy, electricity and water and so on. With thecaterpillar drive chain increasing requirements and complex working conditions, it is not enough to
just use the existing materials to form the fixed structure which is custom
decalsrestricted for the applications of high temperature, high pressure, strong corrosion or strong abrasion. Fortunately, there are some new specified
types which are expected to carry the unpleasant situation out.At present, there is a kind of butterfly valve which is called triple eccentric multiplex ring
metal-seatSeamless underwear butterfly valve. It is a new valve which has greatly made good use of the
advanced technologies. The valve body and the valve seat is one piece. vinyl decalsAnd it is
the hard sealing whose face is around with the materials with resistance to high temperature and strong corrosion. The specially defined structure aims to
make the operation be convenient and smooth, together with the better tightness. However, as a new invention, there are still a lot of points which neediron bedstead improvement.It appears that the multi-layer stacked rings are fixed to the valve
plate. When the valve plate is within the normally open state, the X458medium would directly flow
to the sealing face. Within the long period of erosion, the soft ring would be damaged more or less, leading seriously to the failure of the tightness. Then,
it is not admitted to produce the diameter of DN200, resulting from the thick overall structure. What else, as the sealing is on the transmission of torque
pressure to pass the power from the valve plate to the valve seat, the countercurrent flow of the medium would increase the pressure, leading the damage to
the sealing.zll