Standard Specification for Manhole Cover Assembly, Bolted, Raised, Oiltight and Watertight

ABSTRACT
This specification provides the design and construction criteria for bolted oiltight and watertight manhole cover assemblies that are subjected to lateral pressures such as resulting from vehicle loads or hydrostatic pressures, and used in decks or bulkheads in which the assembly must be of the raised type. Manhole covers shall be complete with coaming, gasket, welded studs or bolts, washers, and nuts. This specification does not address certain hazardous cargos, as well as the design of the manhole cover assembly for primary or cyclic loads.
SCOPE
1.1 This specification provides design and construction criteria for a raised, bolted, oiltight, and watertight manhole cover assembly.  
1.2 The manhole cover assemblies depicted in this specification are for use in decks or bulkheads in which the manhole cover assemblies must be of the raised type. Manhole cover shall be complete with coaming, gasket, welded studs or bolts, washers, and nuts.  
1.3 Determination of the use of handles will be as specified in the ordering information.  
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.5 This specification is not applicable to certain hazardous cargos (see Section 46 CFR 153.254 and 46 CFR 154.340).  
1.6 This specification provides design and construction for manhole cover assemblies subjected to lateral pressures such as resulting from vehicle loads or hydrostatic pressures. Where manhole cover assemblies are subjected to primary or cyclic loads, other reinforcement or construction criteria may be necessary to integrate the manhole assembly with the required structural reinforcement for openings in decks or bulkheads. Design of the manhole cover assembly for primary or cyclic loads is beyond the scope of this specification.

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Publication Date
31-May-2012
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ASTM F1143-98(2012) - Standard Specification for Manhole Cover Assembly, Bolted, Raised, Oiltight and Watertight
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F1143 −98 (Reapproved 2012) An American National Standard
Standard Specification for
Manhole Cover Assembly, Bolted, Raised, Oiltight and
Watertight
This standard is issued under the fixed designation F1143; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification provides design and construction
A36/A36M Specification for Carbon Structural Steel
criteria for a raised, bolted, oiltight, and watertight manhole
A131/A131M Specification for Structural Steel for Ships
cover assembly.
A153/A153M Specification for Zinc Coating (Hot-Dip) on
1.2 The manhole cover assemblies depicted in this specifi-
Iron and Steel Hardware
cation are for use in decks or bulkheads in which the manhole
B36/B36M Specification for Brass Plate, Sheet, Strip, And
cover assemblies must be of the raised type. Manhole cover Rolled Bar
shall be complete with coaming, gasket, welded studs or bolts, D2000 Classification System for Rubber Products in Auto-
motive Applications
washers, and nuts.
F783 Specification for Staple, Handgrab, Handle, and Stir-
1.3 Determination of the use of handles will be as specified
rup Rung
in the ordering information.
2.2 ANSI Standards:
B1.1 Unified Inch Screw Threads
1.4 The values stated in inch-pound units are to be regarded
ANSI Y14.5M Dimensioning and Tolerancing
as the standard. The values given in parentheses are for
B18.2.1 Square and Hex Bolts and Screws, Inch Series
information only.
2.3 American Bureau of Shipping Standard:
1.5 This specification is not applicable to certain hazardous
Rules for Building and Classing Steel Vessels
cargos (see Section 46 CFR 153.254 and 46 CFR 154.340).
2.4 Steel Structures Painting Council Standard:
1.6 This specification provides design and construction for
SP-10 Surface Preparation Specification No. 10
manholecoverassembliessubjectedtolateralpressuressuchas
2.5 Code of Federal Regulations Standard:
resulting from vehicle loads or hydrostatic pressures. Where
CFR 46 Code of Federal Regulations
manhole cover assemblies are subjected to primary or cyclic
loads, other reinforcement or construction criteria may be
3. Terminology
necessary to integrate the manhole assembly with the required
3.1 Definitions:
structural reinforcement for openings in decks or bulkheads.
3.1.1 manhole—an accessway located in a tank structure.
Design of the manhole cover assembly for primary or cyclic
3.1.2 raised—manhole cover seat is located on an angle or
loads is beyond the scope of this specification.
flat bar coaming which protrudes from the tank structure into
1.7 This international standard was developed in accor-
the space from which it is accessed.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Development of International Standards, Guides and Recom-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mendations issued by the World Trade Organization Technical
Standards volume information, refer to the standard’s Document Summary page on
Barriers to Trade (TBT) Committee.
the ASTM website.
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org.
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
This specification is under the jurisdiction of ASTM Committee F25 on Ships Northchase Dr., Houston, TX 77060, http://www.eagle.org.
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
Outfitting and Deck Machinery. Pittsburgh, PA 15222-4656, http://www.sspc.org.
Current edition approved June 1, 2012. Published October 2012. Originally Available from U.S. Government Printing Office, Superintendent of
approved in 1988. Last previous edition approved in 2007 as F1143 – 98 (2007). Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://
DOI: 10.1520/F1143-98R12. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1143−98 (2012)
4. Classification durometer, or other such classification society rules as may be
applicable. Manhole cover assemblies for government applica-
4.1 Type I—15- by 23-in. (381- by 584-mm) size of access
tion see Annex A2 for type of gaskets.
opening. Type II—18- by 24-in. (457- by 610-mm) size of
access opening. 6.8 Welding to conform to the latest issue of the American
Bureau of Shipping Rules per Classification D2000 5BC507
4.2 Grade 1— ⁄4-in. (6.35-mm) thick cover plate. Grade
A14 E034.
3 1
2— ⁄8-in. (9.5-mm) thick cover plate. Grade 3— ⁄2-in. (13-
mm) thick cover plate. 6.9 Details of bolted manhole cover assembly is shown in
Fig. 1 and Fig. 2.
4.3 Class A Manhole Cover Assemblies—Class A manhole
cover assemblies shall be abrasive blasted to near white metal
7. Dimensions and Permissible Variations
in accordance with SSPC SP-10 and a commercial marine
7.1 Dimensions of manhole assembly shall be as indicated
quality nonhazardous corrosion-inhibiting and oil-resistant
in Table 1 and Table 2.
primer coating be applied for protection for a period of one
year during shipping and in shipyard handling.
7.2 For plating up to and including ⁄4-in. (6.4-mm)
thickness, use cover plate of ⁄4-in. (6.4-mm) thickness. Plating
4.4 Class B Manhole Cover Assemblies—Class B manhole
1 3
over ⁄4-in. (6.4-mm) up to, and including ⁄8-in. (9.5-mm)
cover assemblies shall be galvanized in accordance with
thickness, use cover plate of ⁄8-in. (9.5-mm) thickness. Plating
Specification A153/A153M.
3 1
over ⁄8-in. (9.5-mm) thickness, use cover plate of ⁄2-in.
(12.7-mm) thickness.
5. Ordering Information
5.1 The purchasers’ ordering information shall include the
8. Workmanship, Finish, and Appearance
following information:
8.1 Items produced under this specification shall be free of
5.1.1 ASTM designation and year of issue,
splinters, sharp edges, burrs, projections, and weld spatters.
5.1.2 Type (see 4.1),
5.1.3 Grade (see 4.2),
9. Sampling
5.1.4 Class (see 4.3 and 4.4),
9.1 For orders for one or two manhole cover assemblies,
5.1.5 Shape (rectangular or oval) (see Fig. 1 and Fig. 2),
each manhole cover assembly shall be inspected.
5.1.6 Quantity,
5.1.7 Remarks—Handles (are/are not) required, and
9.2 For orders for three to ten manhole cover assemblies,
5.1.8 Approval—Classification society approval (is/is not)
two manhole cover assemblies shall be selected at random. If
required.
any one of them fails to meet requirements, then all manhole
5.1.9 Gasket, if other than specified (see 6.7).
cover assemblies in the order shall be inspected.
9.3 For orders for more than ten manhole cover assemblies,
6. Materials and Manufacture
they shall be separated into groups of ten (or fraction thereof)
6.1 Plate for the cover to be of Specifications A36/A36M or
for sampling purposes.
A131/A131M steel.
10. Inspection and Testing
6.2 Coaming to be of Specifications A36/A36M or A131/
A131M steel.
10.1 Responsibility—Unless otherwise in the order, the
manufacturer is responsible for the performance of all inspec-
6.3 Round bar for the handle shall be in accordance with
tionandtestingspecifiedherein.Themanufacturermayusehis
Specification F783, Type A.
own facilities or any commercial facility acceptable to the
3 1
6.4 Bolts shall be ⁄4 in. (19.05 mm) by 2 ⁄4 in. (57 mm)
purchaser. The purchaser reserves the right to perform any of
3 3
long. Welded studs shall be ⁄4 in. (19.05 mm) by 1 ⁄4 in. (44.4
the inspections and tests set forth where such are deemed
mm) long. Bolts or welded studs shall be manufactured of
necessarytoassurethatsuppliesconformtoprescribedrequire-
ordinary steel to commercial standards. Threads shall be the
ments. Nonconforming manhole cover assemblies shall not be
coarse thread series as specified in the latest issue of ANSI
offered for delivery.
B1.1.
10.2 Inspection—The dimensions of the manhole cover
6.5 Washers shall be ANSI B18.2.1 Type A, ⁄4-in. (19.05-
assembly and its components shall be checked to ensure that
mm) washer, 2-in. (50.8-mm) by 0.148-in. (3.8-mm) thick
they are within specified tolerances.
standard flat manufactured of yellow brass, Specification
10.3 Test Method—Each manhole cover assembly shall be
B36/B36M.
designedtothepressurelistedinTable1andTable2andtested
6.6 Heavy hex nuts shall be ⁄4 in. (19.05 mm) and manu-
to a pressure equal to 1.5 times the design pressure. The test
factured of yellow brass, Specification B36/B36M. Threads in
pressure shall be held for a minimum of 5 min. There shall be
nuts shall conform to the dimensions for coarse threads with
no visible sign of leakage, permanent deformation, or other
tolerances prescribed in ANSI B1.1. The nut shall conform to
indications of structural failure of the manhole cover assembly.
dimensions prescribed in ANSI B18.2.1.
10.3.1 Before delivery, the manhole cover assemblies shall
6.7 Unless otherwise specified in ordering information, be certified as to their watertight and oiltight integrity. Groups
gasket shall be rubber, ⁄16 in. (4.8 mm) thick, 50 6 5 of manhole cover assemblies whose representative samples
F1143−98 (2012)
NOTE 1—See Table 1 for manhole cover assembly dimensions.
1 in. = 25.4 mm.
FIG. 1 Rectangular Manhole Cover Assembly, Raised, Bolted, Oiltight and Watertight
F1143−98 (2012)
NOTE 1—See Table 2 for manhole cover assembly dimensions.
1 in. = 25.4 mm.
FIG. 2
...

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