What exactly are you asking? Straight flanges on pressure vessel heads? Hydraulic straight flange couplings? Necks on piping flanges? ......?.......? How about a picture?
(l) All formed heads, thicker than the shell and concave
to pressure, intended for butt welded attachment, shall have
a skirt length sufficient to meet the requirements of Fig.
UW-13.1, when a tapered transition is required. All formed
heads concave to pressure and intended for butt welded
attachment need not have an integral skirt when the thickness
of the head is equal to or less than the thickness of
the shell. When a skirt is provided, its thickness shall be
at least that required for a seamless shell of the same inside
diameter.
Straight Flange Calculation
Re: Straight Flange Calculation
