Actually Chicopee, the manway cover is almost always manufactured by the vessel manufacturer since it is covered by the U stamp, which is the case with my vessel. The intention of U-1(e)(3) is to make sure that the manhole cover is properly designed since it is part of the pressure retaining...
Adding a spacer is not ideal. It adds additional leak points in a service we do not want leak points. We will also be operating a ram valve for drainage purposes through this nozzle so the spacer could effect its operations. After reviewing the data book and U-1, I have advised that this...
Sorry for the confusion. The nozzle is welded to the manway cover. U-1(e)(3) specifically talks about the pressure-retaining covers for vessel opening so I thought that was understood. The nozzle is welded to the cover. That is a good call to check the data report and U-1 form.
I am hoping yall can offer some clarity for me. I have a U stamped pressure vessel with a manway on the bottom head that has a nozzle welded to its cover (added for contect). The nozzle is 2" too short. If we cut and weld a new nozzle onto the manway, will that require a R-stamp? There is a...
