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ASME VIII Div.1 Addenda 11a
2.7
Circular flat flanges without hubs: loose, welded: to internal pressure: gasket laying inside inner edge of bolt holes: with bolt spacing correction
nomeUnit
nomePart
../../Images/vessels/ASME_VIIID1/2_7loo.png
boltnbBCAspecMaterialFspecMaterialWspecMaterialBtntxgrooverisaltotfteffdgidgoCAgaskfacingbobbliqheightliqdensGhGhDhTmincmaxd
1
designPress
Design pressure: at top:
2
localPress
Design pressure: at location:
3
designTemp
Design temperature:
4
MAWP
Max.allow.working pressure: at top:
MATERIALS
FLANGE
BOLTS
WALL
5
ProductW
ProductB
ProductF
Product form:
6
allowStressW
allowStressB
allowStressF
Unit for: Stress
Allow.stress: at design temperature:
7
 
allowStressaB
allowStressaF
''
at room temperature:
8
 
 
EF
Unit for: Elastic modulus
Elastic modulus: at temperature:
JOINT
9
yy
mm
Gasket factors:
10
Bs
db
Unit for: Length
Bolt diameter: Bolt spacing:
11
BSC
Bolt spacing factor:
12
Ab
Abolt
Unit for: Area
Effective bolt cross section area:
13
Y
K
Factor:
CALCULATION
OPERATING
GASK.SEATING
14
 
H
Unit for: Load
Hydrostatic end force: total:
15
 
HHD
''
Hydrostatic end force: inside:
16
 
HHT
''
Hydrostatic end force: annular:
17
 
HHp
''
Gasket compression load:
18
Wm2
Wm1
''
Minimum bolt load:
19
Am2
Am1
Unit for: Area
Required bolt section:
20
resultBolt
Result for: Bolt stress:
21
W2
W1
Unit for: Load
Design bolt load:
22
Mo2
Mo1
Unit for: Moment
Design flange moment:
23
ST2
ST1
Unit for: Stress
Tangential flange stress:
24
Sa2
Sa1
''
Allowable stress for flange:
25
J
Flange rigidity index:
26
result
Final result:
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numTotPag
numPag1

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2.7: integral
2.7: Loose+hub
2.7: loose
2.7: lap
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Bolt spacing corr. (5)
2.7: int.: w.bolt correction
2.7: l.hub: w.bolt correction
2.7: loose: w.bolt correction
2.7: lap: w.bolt correction
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