Selection issues for the male and female surfaces of pressure vessel nozzle flanges
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In the standard HG/T20583-2011, under section 7.2.2 regarding the selection of flange sealing surfaces for containers, when concave-convex flanges are used, the pipe connections located on the top and sides of the container should employ concave flanges, while those at the bottom should use convex flanges. Does this mean that for the flanges welded to the container’s pipe connections, concave flanges are used on the sides and top, and convex flanges on the bottom? What is the reason for installing it this way? I would appreciate some advice from an expert; thank you.
This takes into account the issue of gasket installation.
This takes into account the issue of gasket installation.
That's right; it's mainly to facilitate the placement of gaskets during installation...
Mainly, the on-site gaskets facilitate installation.
male and female, male on top, female below
You simply don’t understand what I’m saying