ASTM F1020-86(2006)
(Specification)Standard Specification for Line-Blind Valves for Marine Applications
Standard Specification for Line-Blind Valves for Marine Applications
ABSTRACT
This specification provides the minimum requirements for design fabrication, pressure rating, and testing for line-blind valves. The materials for spectacle plates, bolting and body shall be determined. Each valve body shall be subjected to a hydrostatic test.
SCOPE
1.1 This specification provides the minimum requirements for design fabrication, pressure rating, and testing for line-blind valves.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 5, of this specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation: F1020 – 86 (Reapproved 2006)
Standard Specification for
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Line-Blind Valves for Marine Applications
This standard is issued under the fixed designation F1020; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ASME Boiler and Pressure Vessel Code, Sections II, VIII,
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IX
1.1 This specification provides the minimum requirements
fordesignfabrication,pressurerating,andtestingforline-blind
3. Descriptions of Terms Specific to This Standard
valves.
3.1 blank—a solid one-piece circular unit inserted into a
1.2 Thevaluesstatedininch-poundunitsaretoberegarded
pipeline to prevent flow.
as the standard. The values given in parentheses are for
3.2 line-blind valve—an assembly consisting of a spectacle
information only.
plate, bolting, and body, the purpose of which is to provide a
1.3 Thefollowingsafetyhazardscaveatpertainsonlytothe
convenient means to align a piping system to an open or
test methods portion, Section 5, of this specification: This
positively closed configuration. The assembly is designed to
standarddoesnotpurporttoaddressallofthesafetyconcerns,
provide a simplified method of changing over the flow control
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
spectacle plate without the necessity of plate removal from the
of this standard to establish appropriate safety and health
valve body.
practices and determine the applicability of regulatory limita-
3.3 spectacle plate, (also spectacle blind )—a figure-eight-
tions prior to use.
shaped unit with one end open for flow and the other solid to
2. Referenced Documents prevent flow.
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2.1 ASTM Standards:
4. Materials and Manufacture
A53/A53M Specification for Pipe, Steel, Black and Hot-
4.1 Materials:
Dipped, Zinc-Coated, Welded and Seamless
4.1.1 Materials for spectacle plates, bolting, and body shall
2.2 ANSI Standards:
be those contained in ASME Section II. For the purpose of
B16.5 Pipe Flanges and Flanged Fittings, Steel-Nickel Al-
3 stress calculations, ASME Section VIII values shall be used.
loy and Other Special Alloys
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4.1.2 Allweldingshallbedonewithproceduresandwelders
B31.1 Power Piping
qualified in accordance withASMESectionIXand80%weld
2.3 MSS Standards:
efficiency factor shall be used.
SP-6 FinishforContactFacesofPipeFlangesandConnect-
4 4.1.3 Allcastingsshallbevisuallyinspectedandacceptable
ing End Flanges of Valves and Fittings
in accordance with MSS-SP-55.
SP-25 Marking System for Valves, Fittings, Flanges, and
4 4.2 Manufacture:
Unions
4.2.1 The spectacle plate shall be designed in accordance
SP-55 Quality Standard for Steel Castings for Valves,
with ANSI B31.1, Paragraph 104.5.3.
Flanges and Fittings, and Other Piping Components (Vi-
4 4.2.2 The calculations of 4.2.3 and 4.2.4 shall ensure that a
sual Method)
line blind is designed for the gasket material, of all that can be
2.4 ASME Standard:
used with the line blind being designed, that imposes the most
critical bolt-load conditions as a result of its gasket factor, m,
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This specification is under the jurisdiction ofASTM Committee F25 on Ships
and gasket or joint-contact-surface unit seating load, y.
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
4.2.3 The bolting shall be either of the following:
Machinery and Piping Systems.
4.2.3.1 Modify the external loads in accordance with Sec-
Current edition approved Feb. 1, 2006. Published February 2006. Originally
approved in 1986. Last previous edition approved in 2001 as F1020–86 (2001).
tion 6 as determined using ASME Section VIII, Division 1,
DOI: 10.1520/F1020-86R06.
Appendix 2.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2.3.2 The equivalent in cross section to that of ANSI
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
B16.5 flange bolting of equivalent nominal size and pressure.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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Available from American National Standards Institute, 25 W. 43rd St., 4th
Floor, New York, NY 10036.
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AvailablefromManufacturersStandardizationSocietyoftheValveandFittings Available from American Society of Mechanical Engineers (ASME), ASME
Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602. International Headquarters, Three Park Ave., New York, NY 10016-5990.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F1020 – 86 (2006)
4.2.3.3 In no case shall bolts have a nominal diameter less 6.1.
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