MAWP (LImited By)
MAWP (LImited By)
(OP)
I have come across a GA drawing specifying MAWP limited by shell flange , Can i know what is the reason behind it?
Also, when ask supplier to provide calculation for MAWP, the y are not willing to provide and only provide MAWP= Design pressure. Can I know the reason behind it?
Regards,
Darren
Also, when ask supplier to provide calculation for MAWP, the y are not willing to provide and only provide MAWP= Design pressure. Can I know the reason behind it?
Regards,
Darren





RE: MAWP (LImited By)
MAWP = D.P. is ok if there are no calculations available.
RE: MAWP (LImited By)
It is up to the customer to require the fabrication shop to provide MAWP calculations. It is often easier and provides an additional margin of safety to set the MAWP equal to the design pressure. If it's not in the purchasers specs, the shop doesn't have to provide a calculated MAWP. That said, they might be more than happy to if you pay them extra...
RE: MAWP (LImited By)
When you asked to provide MAWP calculation, vendor mentioned that MAWP = Design Pressure, which is fine. As long as vendor mentions which component restricts MAWP, I don't find any reason for insisting on its calculation.
RE: MAWP (LImited By)
In case manufacturer has already indicated on GA that MAWP is limited by flange, calculation for the same is to be provided.