ASME Section VIII div 2 2010. ASME Boiler and Pressure Vessel Code. Alternative Rules
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2010 SECTION VIII, DIVISION 2
4-445
(n)
0
(1)
t
(n) Neutral Position (1) Operating Position qΔ
T2T
Δq
Δq
Δq
Figure 4.19.7 – Cyclic Displacements
(0)
0
(1)
(n)
(n) Neutral Position
Δq
Δq
Δq
(1) Operating Position qΔ(0) Initial Position q
0
Δ
Δq
0
t
Figure 4.19.8 – Cyclic Displacements
2010 SECTION VIII, DIVISION 2
4-446
(1)
0
(2)
(n)
(0) Initial Position 0 (1) Operating Position 1
(n) Neutral Position (2) Operating Position 2
Δq
Δq
2
Δq
t
Δq
1
(0)
Figure 4.19.9 – Cyclic Displacements
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2010 SECTION VIII, DIVISION 2
4-447
t
s
Shell Weld End
Groove or
Fillet Weld
r
min.
= 1.5 mm
(1/16 in.)
t
s
D
b
Convolution
Shell Weld
End
r
min.
= 1.5 mm
(1/16 in.)
Groove or
Fillet Weld
nt
D
b
nt
6 mm (1/4 in.) max.
t
c
t
s
Groove or
Fillet Weld
r
min.
= 1.5 mm
(1/16 in.)
r
min.
= 1.5 mm
(1/16 in.)
Convolution
D
b
Bolted or Welded
Collar (if Required)
Shell Weld
End
nt
Figure 4.19.10 – Some Typical Expansion Bellows Attachment Welds
2010 SECTION VIII, DIVISION 2
4-448
Figure 4.19.11 –
p
C Versus
1
C and
2
C
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2010 SECTION VIII, DIVISION 2
4-449
Figure 4.19.12 –
f
C Versus
1
C and
2
C
2010 SECTION VIII, DIVISION 2
4-450
Figure 4.19.13 –
d
C Versus
1
C and
2
C
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2010 SECTION VIII, DIVISION 2
4-451
4.19.17 Specification Sheets
Specification Sheet For ASME Section VIII, Division 2 Expansion Joints – Metric Units
Date:_______/_________/__________ Applicable ASME Code Edition:____________________
1. Item Number:____________________ Vessel Manufacturer:_____________________________
2. Drawing/Tag/Serial/Job Number:__________________ Vessel Owner:__________________________________
3. Quantity:____________________ Installation Location:_____________________________
4. Size: _________ OD __________ID mm Expansion Joint Overall Length:_________________ mm
5. Internal Pressure: Design _________ MPa
6. External Pressure: Design _________ MPa
7. Vessel Manufacturer Hydrotest Pressure Internal _________ MPa External _________ MPa
8. Temperature Design _________
0
C Operating _________
0
C Upset _________
0
C
9. Vessel rating MAWP _________ MPa MDMT _________
0
C Installed Position: Horz. Vert.
10. Design Movements: Axial Compression: (–)______mm Axial Extension: (+)______mm Lateral:______ mm Angular:______ deg
11. Specified number of Cycles: ______________
12. Shell Material: ______________ Bellows Material: ______________
13. Shell thickness ______________ mm Shell Corrosion Allowance: Internal:________ mm External:__________ mm
14. Shell Radiography: Spot / Full
15. End Preparation: Square Cut Outside Bevel Inside Bevel Double Bevel (Describe in Line 23 if special)
16. Heat Exchanger Tube Length Between Inner Tubesheet Faces: ________ mm
17. Maximum Bellows Spring Rate: No Yes – _________________________ N/mm
18. Internal Liner: No Yes – Material_______________________________
19. Drain Holes in Liner: No Yes – Quantity/Size:_________________________
20. Liner Flush with Shell ID: No Yes – Telescoping Liners? No Yes
21. External Cover: No Yes – Material:______________________________
22. Pre-Production Approvals Required: No Yes – Drawings / Bellows Calculations / Weld Procedures
23. Additional Recommendations: (i.e. bellows pre-set, ultrasonic examination, etc.)
Temporary shipping bars are required to maintain assembly length during shipping and vessel fabrication only,
and ARE NOT to be used during vessel hydrotest for expansion joint pressure restraint (see paragraph 4.19.3.1.c
and 4.19.3.1.d.)
2010 SECTION VIII, DIVISION 2
4-452
Specification Sheet For ASME Section VIII, Division 2 Expansion Joints – US Customary Units
Date:_______/_________/__________ Applicable ASME Code Edition:____________________
1. Item Number:____________________ Vessel Manufacturer:_____________________________
2. Drawing/Tag/Serial/Job Number:__________________ Vessel Owner:__________________________________
3. Quantity:____________________ Installation Location:_____________________________
4. Size: _________ OD __________ID in. Expansion Joint Overall Length:_________________ in.
5. Internal Pressure: Design _________ psig
6. External Pressure: Design _________ psig
7. Vessel Manufacturer Hydrotest Pressure Internal _________ psig External _________ psig
8. Temperature Design _________
0
F Operating _________
0
F Upset _________
0
F
9. Vessel rating MAWP _________ psig MDMT _________
0
F Installed Position: Horz. Vert.
10. Design Movements: Axial Compression: (–)______in. Axial Extension: (+)______in. Lateral:______ in. Angular:______ deg
11. Specified number of Cycles: ______________
12. Shell Material: ______________ Bellows Material: ______________
13. Shell thickness ______________ in. Shell Corrosion Allowance: Internal: ________ in. External:__________ in.
14. Shell Radiography: Spot / Full
15. End Preparation: Square Cut Outside Bevel Inside Bevel Double Bevel (Describe in Line 23 if special)
16. Heat Exchanger Tube Length Between Inner Tubesheet Faces: ________ in.
17. Maximum Bellows Spring Rate: No Yes – _________________________ lbs/in
18. Internal Liner: No Yes – Material_______________________________
19. Drain Holes in Liner: No Yes – Quantity/Size:_________________________
20. Liner Flush with Shell ID: No Yes – Telescoping Liners? No Yes
21. External Cover: No Yes – Material:______________________________
22. Pre-Production Approvals Required: No Yes – Drawings / Bellows Calculations / Weld Procedures
23. Additional Recommendations: (i.e. bellows pre-set, ultrasonic examination, etc.)
Temporary shipping bars are required to maintain assembly length during shipping and vessel fabrication only,
and ARE NOT to be used during vessel hydrotest for expansion joint pressure restraint (see paragraph 4.19.3.1.c
and 4.19.3.1.d.)
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2010 SECTION VIII, DIVISION 2
4-453
ANNEX 4.A
CURRENTLY NOT USED
2010 SECTION VIII, DIVISION 2
4-454
ANNEX 4.B
GUIDE FOR THE DESIGN AND OPERATION OF QUICK-
ACTUATING (QUICK-OPENING) CLOSURES
(INFORMATIVE)
4.B.1 Introduction
4.B.1.1 This Annex provides guidance in the form of recommendations for the installation, operation, and
maintenance of quick-actuating closures. This guidance is primarily for the use of the Owner and the user.
The safety of the quick-actuating closure is the responsibility of the user. This includes the requirement for
the user to provide training for all operating personnel, follow safety procedures, periodically inspect the
closure, provide scheduled maintenance, and have all necessary repairs made in a timely fashion.
4.B.1.2 This Annex also contains guidance for use by the Designer. The rules specific to the design and
construction of quick-actuating closures are found in paragraph 4.8 of this division.
4.B.1.3 The Manufacturer should supply the Owner a copy(s) of the Installation, Operational, and
Maintenance Manual for the quick-actuating closure which should, as a minimum, address the requirements
described in this Annex. The Owner should supply a copy of the Installation, Operational, and Maintenance
Manual to the user.
4.B.2 Responsibilities
4.B.2.1 It is the responsibility of the user to ensure that the sensing and safety devices and the equipment
specified by the Manufacturer are properly installed before initial operation, and maintained during
subsequent operation. Provision of written operation and maintenance procedures and training of personnel
are also the responsibility of the Owner or user.
4.B.2.2 The user must not remove any devices furnished or specified by the Manufacturer of the vessel,
and any repairs or replacements must be the same as, or equal to, the original equipment furnished or
specified by the Manufacturer.
4.B.2.3 The rules of this Annex do not require these devices to be supplied by the Manufacturer of the
vessel or of the quick-actuating closure.
4.B.3 Design
4.B.3.1 Code rules cannot be written to address each specific design; therefore, engineering judgment
exercised by a qualified designer with the necessary experience is required to achieve a safe design.
Because of the multiple requirements imposed on the design, it should be prepared by a designer with
suitable experience and training in the design of quick-actuating closures.
4.B.3.2 The design must be safe, reliable, and allow for quick and safe opening and closing. Therefore,
sensing and safety devices and equipment are integral and vitally important parts of the closure, and are to
be furnished or specified by the Manufacturer of the vessel or quick-actuating closure. These devices must
never be removed by the user.
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