Regarding the orientation of the openings on the equipment drawings
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In which direction does the hole on the pipe open? Up? Down? (Angle of top view) I think it opens upwards, but many people think it opens downwards. Please give your opinion.
It’s not clear what the relative position is in the picture above. So various orientations of the section node diagram are possible. Hanging, hanging, looking up, down, and sideways will give different answers.
It’s not clear what the relative position is in the picture above. So various orientations of the section node diagram are possible. Hanging, hanging, looking up, down, and sideways will give different answers.
What is the purpose? Once you understand it, you will know the direction.
If the picture above is a top view, it means opening the hole upward...
This section view has an arrow, it should be the right view, according to the view, the small hole should be directly behind
If the upper and lower parts are shown, D cross-sectional view should be used.
As shown in the figure, the lower edge of the small hole in the CC cross-section has an elevation of 12.5, so the opening should be horizontal.
The side opening is 180 degrees from the flange surface.