ASME Section VIII div 2 2010. ASME Boiler and Pressure Vessel Code. Alternative Rules
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2010 SECTION VIII, DIVISION 2
4-405
D
c
h
P
t
P
s
D
s
t
s
t
c
A
(a) Configuration a:
Tubesheet Integral with Shell and Channel
C
h
P
t
P
s
t
s
G
c
D
s
(b) Configuration b:
Tubesheet Integral with Shell and Gasketed
with Channel, Extended as a Flange
h
P
t
P
s
t
s
D
s
G
1
(c) Configuration c:
Tubesheet Integral with Shell and Gasketed
with Channel, Not Extended as a Flange
G
c
A
C
C
h
P
t
P
s
t
s
G
c
D
s
A
(not extended)
G
s
A
(extended)
(d) Configuration d:
Tubesheet Integral with Shell and Channel
C
h
P
t
P
s
t
c
D
c
G
s
A
(e) Configuration e:
Tubesheet Gasketed with Shell and Integral with
Channel, Extended as a Flange
C
h
P
t
P
s
t
c
G
s
D
c
A
G
1
(f) Configuration f:
Tubesheet Gasketed with Shell and Integral with
Channel, Not Extended as a Flange
Figure 4.18.4 – U-Tube Tubesheet Configurations
2010 SECTION VIII, DIVISION 2
4-406
D
c
h
P
t
P
s
D
s
t
s
t
c
A
C
h
P
t
P
s
t
s
D
s
A
C
h
P
t
P
s
t
s
D
s
A
C
h
P
t
P
s
t
s
D
s
A
(not extended)
(a) Configuration a:
Tubesheet Integral With Shell And Channel
(b) Configuration b:
Tubesheet Integral With Shell And Gasketed
With Channel, Extended As A Flange
A
(extended)
(c) Configuration c:
Tubesheet Integral With Shell And Gasketed
With Channel, Not Extended As A Flange
(d) Configuration d:
Tubesheet Gasketed With Shell And Channel
D
J
G
C
G
1
G
S
G
C
Figure 4.18.5 – Fixed Tubesheet Configurations
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2010 SECTION VIII, DIVISION 2
4-407
Notes:
1. The curves for
d
Z
,
v
Z
,
w
Z
, and
m
Z
are valid for
*
0.4
ν
= . These curves are sufficiently accurate for
other values of
*
ν
.
2. If
12
a
X > ,
d
Z
,
v
Z
,
w
Z
, and
m
Z
shall be calculated using Table 4.18.3.
Figure 4.18.6 –
d
Z
,
v
Z
,
w
Z
, and
m
Z
Verus
a
X
2010 SECTION VIII, DIVISION 2
4-408
X
a
0246810121416
F
m
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Q
3
= 0.8
Q
3
= 0.7
Q
3
= 0.6
Q
3
= 0.5
Q
3
= 0.4
Q
3
= 0.3
Q
3
= 0.2
Q
3
= 0.0
Q
3
= 0.1
Notes:
1. The curves for
m
F are valid for
*
0.4
ν
= . These curves sufficiently accurate for other values of
*
ν
.
2. If
a
X
and
3
Q are beyond the values in the curves,
m
F shall be calculated using Table 4.18.3.
Figure 4.18.7 – F
m
Verus X
a
(
)
3
0.0 0.8Q≤≤
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2010 SECTION VIII, DIVISION 2
4-409
X
a
0246810121416
F
m
0.0
0.1
0.2
0.3
0.4
0.5
Q
3
= -0.8
Q
3
= -0.7
Q
3
= -0.6
Q
3
= -0.5
Q
3
= -0.4
Q
3
= -0.3
Q
3
= -0.2
Q
3
= -0.1
Q
3
= 0.0
Notes:
1. The curves for
m
F are valid for
*
0.4
ν
= . These curves sufficiently accurate for other values of
*
ν
.
2. If
a
X
and
3
Q are beyond the values in the curves,
m
F shall be calculated using Table 4.18.3.
Figure 4.18.8 – F
m
Verus X
a
(
)
3
0.8 0.0Q−≤≤
2010 SECTION VIII, DIVISION 2
4-410
h
Configuration
a,b, or c
t
c
D
c
Tubesheet
Tubesheet
h
t
s ,1
t
s
D
s
α
s,m
E
s
α
s,m,1
E
s,1
t
s ,1
t
c
D
c
Configuration
a,b, or c
'
1
ι
1
ι
L-
1
- '
1
ι ι
L
L
t
Figure 4.18.9 – Shell With Increased Thickness Adjacent to the Tubesheets
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2010 SECTION VIII, DIVISION 2
4-411
(a) Typical Floating Tubesheet Exchanger With An Immersed Floating Head
(b) Typical Floating Tubesheet Exchanger With An Externally Sealed Floating Head
(c) Typical Floating Tubesheet Exchanger With An Internally Sealed Floating Tubesheet
Stationary Tubesheet,
Configuration a,b,c,d,e, or f
Floating Tubesheet,
Configuration A, B or C
Stationary Tubesheet,
Configuration a,b,c,d,e, or f
Floating Tubesheet,
Configuration A
Stationary Tubesheet,
Configuration a,b,c,d,e, or f
Floating Tubesheet,
Configuration D
Figure 4.18.10 – Floating Tubesheet Heat Exchangers
2010 SECTION VIII, DIVISION 2
4-412
D
c
h
P
t
P
s
D
s
t
s
t
c
A
(a) Configuration a:
Tubesheet Integral with Shell and Channel
C
h
P
t
P
s
t
s
G
c
D
s
(b) Configuration b:
Tubesheet Integral with Shell and Gasketed
with Channel, Extended as a Flange
h
P
t
P
s
t
s
D
s
G
1
(c) Configuration c:
Tubesheet Integral with Shell and Gasketed
with Channel, Not Extended as a Flange
G
c
A
C
C
h
P
t
P
s
t
s
G
c
D
s
A
(not extended)
G
s
A
(extended)
(d) Configuration d:
Tubesheet Integral with Shell and Channel
C
h
P
t
P
s
t
c
D
c
G
s
A
(e) Configuration e:
Tubesheet Gasketed with Shell and Integral with
Channel, Extended as a Flange
C
h
P
t
P
s
t
c
G
s
D
c
A
G
1
(f) Configuration f:
Tubesheet Gasketed with Shell and Integral with
Channel, Not Extended as a Flange
Figure 4.18.11 – Stationary Tubesheet Configurations
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2010 SECTION VIII, DIVISION 2
4-413
h
P
s
P
t
D
c
t
c
A
C
h
P
s
P
t
G
c
A
C
h
P
s
P
t
G
1
G
c
A
h
P
s
P
t
A
(a) Configuration A:
Tubesheet Integral
(b) Configuration B:
Tubesheet Gasketed, Extended As A Flange
(c) Configuration C:
Tubesheet Gasketed, Not Extended As A Flange
(d) Configuration D:
Tubesheet Internally Sealed
Figure 4.18.12 – Floating Tubesheet Configurations
2010 SECTION VIII, DIVISION 2
4-414
Clad Material
(if Present)
typical
t
d
o
a
f
a
f
(a)
t
d
o
a
g
(b)
a
g
t
d
o
a
f
(c)
a
g
a
c
= a
f
+ a
g
a
f
= a
g
a
g
a
f
a
c
t
d
o
a
f
(d)
a
g
a
g
a
f
a
c
a
c
= a
f
+ a
g
a
f
= a
g
Figure 4.18.13 – Some Acceptable Types of Tube-To-Tubesheet Strength Welds
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