Torispherical head depth
Torispherical head depth
(OP)
Hi,
please let me know whether the following formula is correct for depth of Torispherical head or not.
h=L - Sqrt( ( L - Di / 2) * ( L + Di / 2 - 2 * r ) )
please let me know whether the following formula is correct for depth of Torispherical head or not.
h=L - Sqrt( ( L - Di / 2) * ( L + Di / 2 - 2 * r ) )





RE: Torispherical head depth
h = inside head depth (excluding straight flange)
L = inside crown radius
Di = inside diameter of head skirt
r = inside knuckle radius
RE: Torispherical head depth
I use h=L-sqrt((L-r)^2-(Di/2 -r)^2)...try this
RE: Torispherical head depth
RE: Torispherical head depth
The formula is derived from geometry.
h
Bobfromoh,
Your formula & pardiss2523's formula are the same. If you expand the terms inside the square root, you should come up with the same results.
(L - Di/2)(L + Di/2 - 2r) = L2 - 2rL - Di2/4 + rDi
(L - r)2 - (Di/2 - r)2 = L2 - 2rL - Di2/4 + rDi
RE: Torispherical head depth
RE: Torispherical head depth
Torispherical head crown and knuckle radiiuses and vary
Typically crown = 0.9D and knuckle = 0.1D
Contact your head supplier
RE: Torispherical head depth
RE: Torispherical head depth
different manufacturers....different formulas
a set of calculations would show it
RE: Torispherical head depth
RE: Torispherical head depth
Is it so critical?
Why not scale the drawing and then physically check the actual vessel dimensions (drawings can be wrong to actual as-built situation)?
RE: Torispherical head depth
RE: Torispherical head depth
RE: Torispherical head depth
Maybe it makes some assumptions. You could find out by
(1) reading the accompanying manual
(2) calling the software vendor and asking or
(3) finding a forum that specializes in PV Elite
Patricia Lougheed
Please see FAQ731-376: Eng-Tips.com Forum Policies: Eng-Tips.com Forum Policies for tips on how to make the best use of the Eng-Tips Forums.
RE: Torispherical head depth
Regards,
Mike
RE: Torispherical head depth