What gasket does the 8MPa pressure vessel flange seal?
Standard HG20631 gasket.Seal gasket three elements: medium, temperature, pressure.If the strong acid, alkali and organic solvent temperature is not more than 230 degrees Celsius, the pressure is not more than 4.0MPa, it is recommended to use PTFE gasket. If high temperature and high pressure water vapor, that is, high temperature, no more than 600 degrees Celsius, the pressure at 25MPa, it is recommended to use metal wound gasket. There are also to see the form of the flange, and there is the implementation of which country standards.Because of this gasket a lot, the most important thing is to choose suitable for their use of gasket. The seal is small, but the role is very, very important. But don't get obsessed with foreign brands, either. In fact, many are produced in mainland china.
DN1300 such a large cushion, sure to pad down, more so much more wound pad can not afford too much pressure, unless the choice of winding pads with a positioning ring, a positioning ring is not to let the large wound pad so easily when the pressure was opened, so with positioning ring absolutely no problem.If there's anything else you don't understand, please fill in the questions and I'll continue to answer them.
What a big flange. The gasket is estimated to be out of order and easy to spread. It is recommended to use a toothed gasket. This technique is very mature. It is specially designed for large flange sealing. The effect is almost the same as that of the wrapped gasket!
This should be a metal winding pad with an inner ring. Domestic concave convex flanges do not exist abroad. So when you design, you need to use non-standard design flanges, so as to match the European and American gaskets in the chemical department standard.You are such a situation, usually with the same specifications of the European HG/T20592-2009 is behind the winding pad supporting metal winding pads, but need to choose only with the inner ring, the outer ring type of belt can not, at the same time to ensure that the convex concave flange gasket ring to the stable embedded in the convex ring inside. In this case. Gaskets are not extruded from the side (because of the concave outer ring of the cover).
