"tan tan" - What does it mean when used for vessel dimensions?
"tan tan" - What does it mean when used for vessel dimensions?
(OP)
I got vessel dimension e.g. 4600 Dia x 22300 tan tan (mm)
What does "tan tan" stand for?
Apologizes for this simple question - I am not a native English speaker
What does "tan tan" stand for?
Apologizes for this simple question - I am not a native English speaker





RE: "tan tan" - What does it mean when used for vessel dimensions?
"Tan-To-Tan" = "Seam-To-Seam" + 4 inches
The "Tan" is the tangent point where the curvature of a formed head starts. The "Seam" is the point at which the head is welded to the shell; it is common for there to be a 2" straight length beyond the "Tan" for this purpose.
Regards,
SNORGY.
RE: "tan tan" - What does it mean when used for vessel dimensions?
There is nothing to apologize for. A large number of native English speakers (myself included) did not have a clue what tan-to-tan means. Thanks SNORGY for educating all of us.
David
RE: "tan tan" - What does it mean when used for vessel dimensions?
Tangent Line: Refers to the point of contact (tangency) between the cylinder and the knuckle portion of the vessel head. The distance from the tangent line on one head to the tangent line on the opposite head is known as the straight side, or tangent-to-tangent (T/T).
http://www.prentex.com/glossary.php
The depth of tank heads will vary with the diameter of the head. You would have to visit a head manufacturer's catalog to determine the height of a head. There are also different types of heads: dished, spherical, etc.
RE: "tan tan" - What does it mean when used for vessel dimensions?
Bimr,
thank you for this very good explanations and extremely fast replies.
Zdas04,
thanks for the encouraging words. Makes me feel better.
I very am impressed about this forum and its members!
Regards
Christian
RE: "tan tan" - What does it mean when used for vessel dimensions?
What I learned was:
The tangent line is the line where the radius of the tank
passes into the straight cylinder.
That is mostly not the weld seam.
"Tangent Line: Refers to the point of contact (tangency) between the cylinder and the knuckle portion of the vessel"That is right bimr.
The haed mostly has a straight piece.
(And please excuse me too for poor grammar,English is not my native language either)
Greetings
RE: "tan tan" - What does it mean when used for vessel dimensions?
http://www.brightontruedge.com/types.htm
Further information can be obtained by reviewing this ASME course:
ht
RE: "tan tan" - What does it mean when used for vessel dimensions?
RE: "tan tan" - What does it mean when used for vessel dimensions?
RE: "tan tan" - What does it mean when used for vessel dimensions?
Cheers,
John
RE: "tan tan" - What does it mean when used for vessel dimensions?
Don't forget that for Hemi Head vessel, the situation is totally different. S/S > T/T. It will required both thickness to determine the T/T.
HC