Review and Update of Standards for Marine Equipment; Correction, 76247-76249 [E8-29587]
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Federal Register / Vol. 73, No. 242 / Tuesday, December 16, 2008 / Rules and Regulations
* Elevation in feet
(NGVD)
+ Elevation in feet
(NAVD)
# Depth in feet
above ground
Modified
Flooding source(s)
Location of referenced elevation
Little Sugar River ......................
At the mouth at Albany Lake ..............................................
+806
Sugar River ...............................
Just upstream of Tin Can Road ..........................................
Approximately 7,300 feet upstream of the Dam at Decatur
Lake.
Approximately 1,200 feet upstream of Remy Road ............
+807
+793
76247
Communities affected
Unincorporated Areas of
Green County.
Unincorporated Areas of
Green County.
+856
* National Geodetic Vertical Datum.
+ North American Vertical Datum.
# Depth in feet above ground.
ADDRESSES
Unincorporated Areas of Green County
Maps are available for inspection at Government Services Building, N3150 Highway 81, Monroe, WI 53566.
(Catalog of Federal Domestic Assistance No.
97.022, ‘‘Flood Insurance.’’)
Dated: December 5, 2008.
Michael K. Buckley,
Acting Assistant Administrator, Mitigation
Directorate, Department of Homeland
Security, Federal Emergency Management
Agency.
[FR Doc. E8–29779 Filed 12–15–08; 8:45 am]
BILLING CODE 9110–12–P
DEPARTMENT OF HOMELAND
SECURITY
20593–0001, telephone 202–372–1383.
If you have questions on viewing the
docket, call Renee V. Wright, Program
Manager, Docket Operations, telephone
202–366–9826.
SUPPLEMENTARY INFORMATION:
Need for Correction
As published, the amendatory
instruction for 46 CFR 56.30–10 was
incorrect and could not be given effect
in the Code of Federal Regulations.
List of Subjects in 46 CFR Part 56
RIN 1625–AA83
Incorporation by reference, Reporting
and recordkeeping requirements,
Vessels.
■ Accordingly, 46 CFR part 56 is
corrected by making the following
correcting amendment:
Review and Update of Standards for
Marine Equipment; Correction
PART 56—PIPING SYSTEMS AND
APPURTENANCES
Coast Guard
46 CFR Part 56
[Docket No. USCG–2003–16630]
1. The authority citation for part 56
continues to read as follows:
■
Coast Guard, DHS.
Correcting amendment.
AGENCY:
ACTION:
The Coast Guard published a
document in the Federal Register on
October 31, 2008 (73 FR 65156), revising
rules relating to standards for marine
equipment. That document provided
incorrect amendatory instruction for 46
CFR 56.30–10. This document corrects
the final regulation by revising the
amendatory instruction.
DATES: Effective December 16, 2008. The
incorporation by reference of certain
publications listed in the rule is
approved by the Director of the Federal
Register on January 15, 2009.
FOR FURTHER INFORMATION CONTACT: If
you have questions on this rule, call
Thane Gilman, Project Manager, Office
of Design and Engineering Standards
(CG–521), U.S. Coast Guard, 2100
Second Street, SW., Washington, DC
mstockstill on PROD1PC66 with RULES_2
SUMMARY:
VerDate Aug<31>2005
17:50 Dec 15, 2008
Jkt 217001
Authority: 33 U.S.C. 1321(j), 1509; 43
U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O.
12234, 45 FR 58801, 3 CFR, 1980 Comp., p.
277; E.O. 12777, 56 FR 54757, 3 CFR, 1991
Comp., p. 351; Department of Homeland
Security Delegation No. 0170.1.
2. Amend § 56.30–10 by revising
paragraph (b) to read as follows:
■
§ 56.30–10 Flanged joints (modifies
104.5.1(a)).
*
*
*
*
*
(b) Flanges may be attached by any
method shown in Figure 56.30–10(b) or
by any additional means that may be
approved by the Marine Safety Center.
Pressure temperature ratings of the
appropriate ANSI/ASME standard must
not be exceeded.
(1) Figure 56.30–10(b), Method 1.
Flanges with screw threads may be used
PO 00000
Frm 00057
Fmt 4700
Sfmt 4700
in accordance with 46 CFR 56.30–20,
Table 56.30–20(c).
(2) Figure 56.30–10(b), Method 2.
ASME B16.5 (incorporated by reference;
see 46 CFR 56.01–2) Class 150 and Class
300 low-hubbed flanges with screw
threads, plus the addition of a strength
fillet weld of the size as shown, may be
used in Class I systems not exceeding
750 °F or 4 NPS, in Class II systems
without diameter limitations, and in
Class II–L systems not exceeding 1 NPS.
If 100 percent radiography is required
by 46 CFR 56.95–10 for the class,
diameter, wall thickness, and material
of pipe being joined, the use of the
threaded flanges is not permitted and
buttwelding flanges must be provided.
For Class II piping systems, the size of
the strength fillet may be limited to a
maximum of 0.525 inch instead of 1.4T.
(3) Figure 56.30–10(b), Method 3. Slipon flanges meeting ASME B16.5 may be
used in piping systems of Class I, Class
II, or Class II–L not to exceed the service
pressure-temperature ratings for flanges
of class 300 and lower, within the
temperature limitations of the material
selected for use, and not to exceed 4inch Nominal Pipe Size (NPS) in
systems of Class I and Class II–L. If 100
percent radiography is required by 46
CFR 56.95–10 for the class, diameter,
wall thickness, and material of the pipe
being joined, then slip-on flanges are
not permitted and butt-welding flanges
are required. The configuration in
Figure 127.4.4B(b) of ASME B31.1
(incorporated by reference; see 46 CFR
56.01–2), using a face and backweld,
may be preferable where eliminating
void spaces is desirable. For systems of
Class II, the size of the strength fillet
may be limited to a maximum of 0.525
inch instead of 1.4T, and the distance
from the face of the flange to the end of
the pipe may be a maximum of three-
E:\FR\FM\16DER1.SGM
16DER1
76248
Federal Register / Vol. 73, No. 242 / Tuesday, December 16, 2008 / Rules and Regulations
mstockstill on PROD1PC66 with RULES_2
eighths of an inch. Restrictions on the
use of slip-on flanges appear in 46 CFR
56.50–105 for low-temperature piping
systems.
(4) Figure 56.30–10(b), Method 4.
ASME B16.5 socket welding flanges
may be used in Class I or II–L systems
not exceeding 3 NPS for class 600 and
lower class flanges and 21/2NPS for
class 900 and class 1500 flanges within
the service pressure-temperature ratings
of the standard. Whenever full
radiography is required by 46 CFR
56.95–10 for the class, diameter, and
wall thickness of the pipe being joined,
the use of socket welding flanges is not
permitted and a butt weld type
connection must be provided. For Class
II piping, socket welding flanges may be
used without diameter limitation, and
the size of the fillet weld may be limited
to a maximum of 0.525 inch instead of
1.4T. Restrictions on the use of socket
welds appear in 46 CFR 56.50–105 for
low temperature piping systems.
(5) Figure 56.30–10(b), Method 5.
Flanges fabricated from steel plate
meeting the requirements of part 54 of
this chapter may be used for Class II
piping for pressures not exceeding 150
pounds per square inch and
temperatures not exceeding 450 °F.
Plate material listed in UCS–6(b) of
section VIII of the ASME Boiler and
Pressure Vessel Code (incorporated by
reference; see 46 CFR 56.01–2) may not
be used in this application, except that
material meeting ASTM A 36
(incorporated by reference, see 46 CFR
56.01–2) may be used. The fabricated
flanges must conform at least to the
ASME B16.5 class 150 flange
dimensions. The size of the strength
fillet weld may be limited to a
maximum of 0.525 inches instead of
1.4T and the distance from the face of
the flange to the end of the pipe may be
a maximum of three-eighths inch.
(6) Figure 56.30–10 (b), Method 6.
Steel plate flanges meeting the material
and construction requirements listed in
paragraph (b)(5) of this section may be
used for Class II piping for pressures not
exceeding 150 pounds per square inch
or temperatures not exceeding 650 °F.
The flange shall be attached to the pipe
as shown by Figure 56.30–10(b). Method
6. The pressure shall not exceed the
American National Standard Service
pressure temperature rating. The size of
the strength fillet weld may be limited
VerDate Aug<31>2005
15:59 Dec 15, 2008
Jkt 217001
to a maximum of 0.525 inch instead of
1.4T and the distance from the face of
the flange to the end of the pipe may be
a maximum of three-eighths inch.
(7) Figure 56.30–10 (b), Method 7. Lap
joint flanges (Van Stone) may be used
for Class I and Class II piping. The Van
Stone equipment must be operated by
competent personnel. The ends of the
pipe must be heated from 1,650° to
1,900 °F. dependent on the size of the
pipe prior to the flanging operation. The
foregoing temperatures must be
carefully adhered to in order to prevent
excess scaling of the pipe. The extra
thickness of metal built up in the end
of the pipe during the forming operation
must be machined to restore the pipe to
its original diameter. The machined
surface must be free from surface defects
and the back of the Van Stone lap must
be machined to a fine tool finish to
furnish a line contact with the mating
surface on the flange for the full
circumference as close as possible to the
fillet of the flange. The number of heats
to be used in forming a flange must be
determined by the size of the pipe and
not more than two pushups per heat are
permitted. The width of the lap flange
must be at least three times the
thickness of the pipe wall and the end
of the pipe must be properly stress
relieved after the flanging operation is
completed. Manufacturers desiring to
produce this type of joint must
demonstrate to a marine inspector that
they have the proper equipment and
personnel to produce an acceptable
joint.
(8) Figure 56.30–10 (b), Method 8.
Welding neck flanges may be used on
any piping provided the flanges are
butt-welded to the pipe. The joint must
be welded as indicated by Figure 56.30–
10(b), Method 8, and a backing ring
employed which will permit complete
penetration of the weld metal. If a
backing ring is not used, refer to 46 CFR
56.30–5(b) for requirements.
(9) Figure 56.30–10 (b), Method 9.
Welding neck flanges may also be
attached to pipe by a double-welded
butt joint as shown by Figure 56.30–
10(b), Method 9.
(10) Figure 56.30–10 (b), Method 10.
Flanges may be attached by shrinking
the flange on to the end of the pipe and
flaring the end of the pipe to an angle
of not less than 20°. A fillet weld of the
size shown by Figure 56.30–10(b),
PO 00000
Frm 00058
Fmt 4700
Sfmt 4700
Method 10, must be used to attach the
hub to the pipe. This type of flange is
limited to a maximum pressure of 300
pounds per square inch at temperatures
not exceeding 500 °F.
(11) Figure 56.30–10(b), Method 11.
The flange of the type described and
illustrated by Figure 56.30–10(b),
Method 10, except with the fillet weld
omitted, may be used for Class II piping
for pressures not exceeding 150 pounds
per square inch and temperatures not
exceeding 450 °F.
(12) Figure 56.30–10(b), Method 12.
High-hub bronze flanges may be used
for temperatures not exceeding 425 °F.
The hub of the flange must be bored to
a depth not less than that required for
a threaded connection of the same
diameter leaving a shoulder for the pipe
to butt against. A preinserted ring of
silver brazing alloy having a melting
point not less than 1,000 °F and of
sufficient quantity to fill the annular
clearance between the flange and the
pipe must be inserted in the groove. The
pipe must then be inserted in the flange
and sufficient heat applied externally to
melt the brazing alloy until it
completely fills the clearance between
the hub and the flange of the pipe. A
suitable flux must be applied to the
surfaces to be joined to produce a
satisfactory joint.
(13) Figure 56.30–10(b), Method 13.
The type of flange as described for
Figure 56.30–10(b), Method 12, may be
employed and in lieu of an annular
groove being machined in the hub of the
flange for the preinserted ring of silver
brazing alloy, a bevel may be machined
on the end of the hub and the silver
brazing alloy introduced from the end of
the hub to attach the pipe to the flange.
(14) Figure 56.30–10(b), Method 14.
Flanges may be attached to nonferrous
pipe by inserting the pipe in the flange
and flanging the end of the pipe into the
recess machined in the face of the flange
to receive it. The width of the flange
must be not less than three times the
pipe wall thickness. In addition, the
pipe must be securely brazed to the wall
of the flange.
(15) Figure 56.30–10(b), Method 15.
The flange of the type described and
illustrated by Figure 56.30–10(b),
Method 14, except with the brazing
omitted, may be used for Class II piping
and where the temperature does not
exceed 250 °F.
E:\FR\FM\16DER1.SGM
16DER1
Note to Fig. 56.30–10(b): ‘‘T’’ is the
nominal pipe wall thickness used. Consult
the text of paragraph (b) for modifications on
Class II piping systems. Fillet weld leg size
need not exceed the thickness of the
applicable ASME hub.
Dated: December 4, 2008.
Steve G. Venckus,
Chief, Office of Regulations and
Administrative Law, U.S. Coast Guard.
[FR Doc. E8–29587 Filed 12–15–08; 8:45 am]
BILLING CODE 4910–15–P
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[FWS–R7–ES–2008–0027; MO–9221050083–
B2]
mstockstill on PROD1PC66 with RULES_2
RIN 1018–AV79
Endangered and Threatened Wildlife
and Plants; Special Rule for the Polar
Bear
AGENCY: Fish and Wildlife Service,
Interior.
VerDate Aug<31>2005
15:59 Dec 15, 2008
Jkt 217001
ACTION:
Final rule.
SUMMARY: We, the Fish and Wildlife
Service (Service), amend the regulations
at 50 CFR part 17, which implement the
Endangered Species Act, as amended
(ESA), to create a final special rule
under authority of section 4(d) of the
ESA that provides measures that are
necessary and advisable to provide for
the conservation of the polar bear (Ursus
maritimus). The special rule, in most
instances, adopts the existing
conservation regulatory requirements
under the Marine Mammal Protection
Act of 1972, as amended (MMPA), and
the Convention on International Trade
in Endangered Species of Wild Fauna
and Flora (CITES) as the appropriate
regulatory provisions for this threatened
species. Nonetheless, if an activity is not
authorized or exempted under the
MMPA or CITES and would result in an
act that would be otherwise prohibited
under the general prohibitions under
the ESA for threatened species (50 CFR
17.31), then the prohibitions at 50 CFR
17.31 apply, and we would require
authorization under 50 CFR 17.32. In
addition, this special rule provides that
any incidental take of polar bears that
PO 00000
Frm 00059
Fmt 4700
Sfmt 4700
76249
results from activities that occur outside
of the current range of the species is not
a prohibited act under the ESA. This
special rule does not affect any existing
requirements under the MMPA,
including incidental take restrictions, or
CITES, regardless of whether the
activity occurs inside or outside the
current range of the polar bear. Further,
nothing in this special rule affects the
consultation requirements under section
7 of the ESA.
DATES: This final rule becomes effective
January 15, 2009.
ADDRESSES: This final rule is available
on the Internet at https://
www.regulations.gov and https://
ecos.fws.gov/speciesProfile/
SpeciesReport.do?spcode=A0IJ.
Supporting documentation we used in
preparing this final rule will be
available for public inspection, by
appointment, during normal business
hours, at the Marine Mammal
Management Office, U.S. Fish and
Wildlife Service, 1011 East Tudor Road,
Anchorage, AK 99503.
FOR FURTHER INFORMATION CONTACT:
Geoffrey Haskett, Regional Director,
Region 7, U.S. Fish and Wildlife
E:\FR\FM\16DER1.SGM
16DER1
ER16DE08.002</GPH>
Federal Register / Vol. 73, No. 242 / Tuesday, December 16, 2008 / Rules and Regulations
]]>Agencies
[Federal Register Volume 73, Number 242 (Tuesday, December 16, 2008)]
[Rules and Regulations]
[Pages 76247-76249]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-29587]
-----------------------------------------------------------------------
DEPARTMENT OF HOMELAND SECURITY
Coast Guard
46 CFR Part 56
[Docket No. USCG-2003-16630]
RIN 1625-AA83
Review and Update of Standards for Marine Equipment; Correction
AGENCY: Coast Guard, DHS.
ACTION: Correcting amendment.
-----------------------------------------------------------------------
SUMMARY: The Coast Guard published a document in the Federal Register
on October 31, 2008 (73 FR 65156), revising rules relating to standards
for marine equipment. That document provided incorrect amendatory
instruction for 46 CFR 56.30-10. This document corrects the final
regulation by revising the amendatory instruction.
DATES: Effective December 16, 2008. The incorporation by reference of
certain publications listed in the rule is approved by the Director of
the Federal Register on January 15, 2009.
FOR FURTHER INFORMATION CONTACT: If you have questions on this rule,
call Thane Gilman, Project Manager, Office of Design and Engineering
Standards (CG-521), U.S. Coast Guard, 2100 Second Street, SW.,
Washington, DC 20593-0001, telephone 202-372-1383. If you have
questions on viewing the docket, call Renee V. Wright, Program Manager,
Docket Operations, telephone 202-366-9826.
SUPPLEMENTARY INFORMATION:
Need for Correction
As published, the amendatory instruction for 46 CFR 56.30-10 was
incorrect and could not be given effect in the Code of Federal
Regulations.
List of Subjects in 46 CFR Part 56
Incorporation by reference, Reporting and recordkeeping
requirements, Vessels.
0
Accordingly, 46 CFR part 56 is corrected by making the following
correcting amendment:
PART 56--PIPING SYSTEMS AND APPURTENANCES
0
1. The authority citation for part 56 continues to read as follows:
Authority: 33 U.S.C. 1321(j), 1509; 43 U.S.C. 1333; 46 U.S.C.
3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O.
12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; Department of
Homeland Security Delegation No. 0170.1.
0
2. Amend Sec. 56.30-10 by revising paragraph (b) to read as follows:
Sec. 56.30-10 Flanged joints (modifies 104.5.1(a)).
* * * * *
(b) Flanges may be attached by any method shown in Figure 56.30-
10(b) or by any additional means that may be approved by the Marine
Safety Center. Pressure temperature ratings of the appropriate ANSI/
ASME standard must not be exceeded.
(1) Figure 56.30-10(b), Method 1. Flanges with screw threads may be
used in accordance with 46 CFR 56.30-20, Table 56.30-20(c).
(2) Figure 56.30-10(b), Method 2. ASME B16.5 (incorporated by
reference; see 46 CFR 56.01-2) Class 150 and Class 300 low-hubbed
flanges with screw threads, plus the addition of a strength fillet weld
of the size as shown, may be used in Class I systems not exceeding 750
[deg]F or 4 NPS, in Class II systems without diameter limitations, and
in Class II-L systems not exceeding 1 NPS. If 100 percent radiography
is required by 46 CFR 56.95-10 for the class, diameter, wall thickness,
and material of pipe being joined, the use of the threaded flanges is
not permitted and buttwelding flanges must be provided. For Class II
piping systems, the size of the strength fillet may be limited to a
maximum of 0.525 inch instead of 1.4T.
(3) Figure 56.30-10(b), Method 3. Slip-on flanges meeting ASME
B16.5 may be used in piping systems of Class I, Class II, or Class II-L
not to exceed the service pressure-temperature ratings for flanges of
class 300 and lower, within the temperature limitations of the material
selected for use, and not to exceed 4-inch Nominal Pipe Size (NPS) in
systems of Class I and Class II-L. If 100 percent radiography is
required by 46 CFR 56.95-10 for the class, diameter, wall thickness,
and material of the pipe being joined, then slip-on flanges are not
permitted and butt-welding flanges are required. The configuration in
Figure 127.4.4B(b) of ASME B31.1 (incorporated by reference; see 46 CFR
56.01-2), using a face and backweld, may be preferable where
eliminating void spaces is desirable. For systems of Class II, the size
of the strength fillet may be limited to a maximum of 0.525 inch
instead of 1.4T, and the distance from the face of the flange to the
end of the pipe may be a maximum of three-
[[Page 76248]]
eighths of an inch. Restrictions on the use of slip-on flanges appear
in 46 CFR 56.50-105 for low-temperature piping systems.
(4) Figure 56.30-10(b), Method 4. ASME B16.5 socket welding flanges
may be used in Class I or II-L systems not exceeding 3 NPS for class
600 and lower class flanges and 21/2NPS for class 900 and class 1500
flanges within the service pressure-temperature ratings of the
standard. Whenever full radiography is required by 46 CFR 56.95-10 for
the class, diameter, and wall thickness of the pipe being joined, the
use of socket welding flanges is not permitted and a butt weld type
connection must be provided. For Class II piping, socket welding
flanges may be used without diameter limitation, and the size of the
fillet weld may be limited to a maximum of 0.525 inch instead of 1.4T.
Restrictions on the use of socket welds appear in 46 CFR 56.50-105 for
low temperature piping systems.
(5) Figure 56.30-10(b), Method 5. Flanges fabricated from steel
plate meeting the requirements of part 54 of this chapter may be used
for Class II piping for pressures not exceeding 150 pounds per square
inch and temperatures not exceeding 450 [deg]F. Plate material listed
in UCS-6(b) of section VIII of the ASME Boiler and Pressure Vessel Code
(incorporated by reference; see 46 CFR 56.01-2) may not be used in this
application, except that material meeting ASTM A 36 (incorporated by
reference, see 46 CFR 56.01-2) may be used. The fabricated flanges must
conform at least to the ASME B16.5 class 150 flange dimensions. The
size of the strength fillet weld may be limited to a maximum of 0.525
inches instead of 1.4T and the distance from the face of the flange to
the end of the pipe may be a maximum of three-eighths inch.
(6) Figure 56.30-10 (b), Method 6. Steel plate flanges meeting the
material and construction requirements listed in paragraph (b)(5) of
this section may be used for Class II piping for pressures not
exceeding 150 pounds per square inch or temperatures not exceeding 650
[deg]F. The flange shall be attached to the pipe as shown by Figure
56.30-10(b). Method 6. The pressure shall not exceed the American
National Standard Service pressure temperature rating. The size of the
strength fillet weld may be limited to a maximum of 0.525 inch instead
of 1.4T and the distance from the face of the flange to the end of the
pipe may be a maximum of three-eighths inch.
(7) Figure 56.30-10 (b), Method 7. Lap joint flanges (Van Stone)
may be used for Class I and Class II piping. The Van Stone equipment
must be operated by competent personnel. The ends of the pipe must be
heated from 1,650[deg] to 1,900 [deg]F. dependent on the size of the
pipe prior to the flanging operation. The foregoing temperatures must
be carefully adhered to in order to prevent excess scaling of the pipe.
The extra thickness of metal built up in the end of the pipe during the
forming operation must be machined to restore the pipe to its original
diameter. The machined surface must be free from surface defects and
the back of the Van Stone lap must be machined to a fine tool finish to
furnish a line contact with the mating surface on the flange for the
full circumference as close as possible to the fillet of the flange.
The number of heats to be used in forming a flange must be determined
by the size of the pipe and not more than two pushups per heat are
permitted. The width of the lap flange must be at least three times the
thickness of the pipe wall and the end of the pipe must be properly
stress relieved after the flanging operation is completed.
Manufacturers desiring to produce this type of joint must demonstrate
to a marine inspector that they have the proper equipment and personnel
to produce an acceptable joint.
(8) Figure 56.30-10 (b), Method 8. Welding neck flanges may be used
on any piping provided the flanges are butt-welded to the pipe. The
joint must be welded as indicated by Figure 56.30-10(b), Method 8, and
a backing ring employed which will permit complete penetration of the
weld metal. If a backing ring is not used, refer to 46 CFR 56.30-5(b)
for requirements.
(9) Figure 56.30-10 (b), Method 9. Welding neck flanges may also be
attached to pipe by a double-welded butt joint as shown by Figure
56.30-10(b), Method 9.
(10) Figure 56.30-10 (b), Method 10. Flanges may be attached by
shrinking the flange on to the end of the pipe and flaring the end of
the pipe to an angle of not less than 20[deg]. A fillet weld of the
size shown by Figure 56.30-10(b), Method 10, must be used to attach the
hub to the pipe. This type of flange is limited to a maximum pressure
of 300 pounds per square inch at temperatures not exceeding 500 [deg]F.
(11) Figure 56.30-10(b), Method 11. The flange of the type
described and illustrated by Figure 56.30-10(b), Method 10, except with
the fillet weld omitted, may be used for Class II piping for pressures
not exceeding 150 pounds per square inch and temperatures not exceeding
450 [deg]F.
(12) Figure 56.30-10(b), Method 12. High-hub bronze flanges may be
used for temperatures not exceeding 425 [deg]F. The hub of the flange
must be bored to a depth not less than that required for a threaded
connection of the same diameter leaving a shoulder for the pipe to butt
against. A preinserted ring of silver brazing alloy having a melting
point not less than 1,000 [deg]F and of sufficient quantity to fill the
annular clearance between the flange and the pipe must be inserted in
the groove. The pipe must then be inserted in the flange and sufficient
heat applied externally to melt the brazing alloy until it completely
fills the clearance between the hub and the flange of the pipe. A
suitable flux must be applied to the surfaces to be joined to produce a
satisfactory joint.
(13) Figure 56.30-10(b), Method 13. The type of flange as described
for Figure 56.30-10(b), Method 12, may be employed and in lieu of an
annular groove being machined in the hub of the flange for the
preinserted ring of silver brazing alloy, a bevel may be machined on
the end of the hub and the silver brazing alloy introduced from the end
of the hub to attach the pipe to the flange.
(14) Figure 56.30-10(b), Method 14. Flanges may be attached to
nonferrous pipe by inserting the pipe in the flange and flanging the
end of the pipe into the recess machined in the face of the flange to
receive it. The width of the flange must be not less than three times
the pipe wall thickness. In addition, the pipe must be securely brazed
to the wall of the flange.
(15) Figure 56.30-10(b), Method 15. The flange of the type
described and illustrated by Figure 56.30-10(b), Method 14, except with
the brazing omitted, may be used for Class II piping and where the
temperature does not exceed 250 [deg]F.
[[Page 76249]]
[GRAPHIC] [TIFF OMITTED] TR16DE08.002
Note to Fig. 56.30-10(b): ``T'' is the nominal pipe wall
thickness used. Consult the text of paragraph (b) for modifications
on Class II piping systems. Fillet weld leg size need not exceed the
thickness of the applicable ASME hub.
Dated: December 4, 2008.
Steve G. Venckus,
Chief, Office of Regulations and Administrative Law, U.S. Coast Guard.
[FR Doc. E8-29587 Filed 12-15-08; 8:45 am]
BILLING CODE 4910-15-P
