Incorrect opening in the head
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The EHA2400 has holes numbered 530, but the position of these holes is off by 100. How should this be dealt with? Are there any rules?
Such hole-making errors can only be addressed by contacting the design team to see if the issue can be resolved by adjusting the piping, thus accepting the current deviation in the hole positions. With such a large opening and an offset of 100 mm, it is not possible to use paired blind flanges added to this opening as a sealing solution. For smaller holes where the location of the opening is significantly offset from the correct position, it is possible to use blind flanges, but this also requires approval from the design team.
Can’t we just weld together the cut boards, then make holes for testing, and that will suffice for surface inspection?
Doing this won’t be accepted by customers; it’s flawed. If it goes undiscovered and no problems arise within the applicable period, then you can consider yourselves lucky.
There shouldn’t be any problem, right? Redo the design calculations to see if opening the manhole has any impact.
What the sofa said is absolutely right. Discuss it with the designer to see if the issue can be resolved by adjusting the piping. Without the designer’s approval, it will be troublesome if the inspection fails later on
Since it’s a manhole and located on the cover, a slight deviation should not be a major issue; communicate well with the designers.
Well, the manhole isn’t needed; I didn’t look closely just now