Technical assistance: Fittings for DN2000 and above
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This post was last edited by hesonchang214 on 2010-5-4 at 19:53. Let’s discuss issues related to piping for large-diameter pipes, namely those with a diameter of DN2000 or more. Since the standards do not provide specifications for pipes and fittings of such large sizes, I would like to ask the experts here: how do you draw the fittings for these large pipes when creating drawings? For example, tees, elbows, reducers, etc. – how are these fittings represented in drawings, given that the standards do not include dimensions for fittings of such large sizes?
Pipes and fittings larger than DN2000 are generally not prefabricated; they are made by welding rolled steel plates together. As for the length or diameter of fittings such as tees, reducers, elbows, etc., relevant standards can be consulted.
Look up that standard upstairs; I’ve been searching but couldn’t find the standards for these large pipes
Same question: Should reinforcement be carried out on-site by drilling holes (which may not meet the reinforcement requirements, resulting in an inability to conduct calculations or failed calculations), or should a custom part be requested from the manufacturer?