Horizontal shell with a tangent manway
Horizontal shell with a tangent manway
(OP)
Hello all,
I am trying to find documentation/limitations about a manway being tangent to a horizontal shell.
I found some documentation and formulas for the manway and how far it can be from the center of the elliptical head but nothing about being tangent to the shell.
Thanks in advance
I am trying to find documentation/limitations about a manway being tangent to a horizontal shell.
I found some documentation and formulas for the manway and how far it can be from the center of the elliptical head but nothing about being tangent to the shell.
Thanks in advance





RE: Horizontal shell with a tangent manway
RE: Horizontal shell with a tangent manway
RE: Horizontal shell with a tangent manway
The tangential nozzle is just for maintenance purposes. They are wanting to attach the manway tangent to the shell for ease of cleaning.
Would there not be limitations on how far the nozzle can be parallel/tangent to the shell since they would have to cut the edge of the head. The vessel is in service with 40 psi internal and 10 psi external pressure.
Thank you,
RE: Horizontal shell with a tangent manway
RE: Horizontal shell with a tangent manway
RE: Horizontal shell with a tangent manway
I will look more into it
RE: Horizontal shell with a tangent manway
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Horizontal shell with a tangent manway
RE: Horizontal shell with a tangent manway
Well, a manway (aka manhole, accessway, etc.) is physically and design wise about the same as a process nozzle, isn't it? With the exception of imposed piping loads and the UG-45 minimum thicknesses being a tad thinner in a small number of cases, the only difference between a 24" tangential process nozzle (e.g. feed inlet on a rather small refinery vacuum distillation column or a cyclonic separator) and a 24" tangential manway is the blind flange and manway davit or hinge. Of course, in the case of the manway, the Section VIII Div. 1 scope is extended a bit to include the blind, whereas with a process connection the scope is typically limited to the face of the vessel flange.
What, specifically, do you find confusing?
RE: Horizontal shell with a tangent manway
RE: Horizontal shell with a tangent manway
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Horizontal shell with a tangent manway
The problem with sloppy work is that the supply FAR EXCEEDS the demand