Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
(OP)
Hello,
My client claims horizontal tappings for horizontal vessels have fixed limitations as per ASME Section VIII Div. 1 pressure vessel code. The maximum angle for horizontal orientated tappings should not exceed 55 degrees, hence the minimum tapping distance should be 0,1 x diameter of the vessel.
I have gone through the ASME code to th best of my knowledge but could not ffine this requirement.
Can anyone be of help?
Is my client claims justified by the ASME?
Many thanks for prompt response.
Regards,
Geepee11
My client claims horizontal tappings for horizontal vessels have fixed limitations as per ASME Section VIII Div. 1 pressure vessel code. The maximum angle for horizontal orientated tappings should not exceed 55 degrees, hence the minimum tapping distance should be 0,1 x diameter of the vessel.
I have gone through the ASME code to th best of my knowledge but could not ffine this requirement.
Can anyone be of help?
Is my client claims justified by the ASME?
Many thanks for prompt response.
Regards,
Geepee11





RE: Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
Regards,
Mike
RE: Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
MJCronin
Sr. Process Engineer
Venture Engineering & Construction
www.VentureEngr.com
RE: Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
I am talking about the angle limitation of placing an horizontal nozzle on horizontal vessels. As you may know, a lot of manufacturers have issues during fabrication in welding an horizontal nozzle to a cylindrical shell.
Some companies clearly state in their specification to provide radial nozzles to the vessel shell after this angle limitation.
I am just looking for what section of the ASME code states this requirement.
I hope this is more clear for you.
Regards,
Geepee11
RE: Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
RE: Horizontal tappings limitations for horizontal vessels as per ASME Section VIII Div. 1
Regards,
Mike