Standard Specification for Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and Watertight, Hinged

SCOPE
1.1 This specification provides design and construction criteria for a semi-flush, oiltight and watertight bolted hinged manhole cover assembly.
1.2 The manhole cover assemblies depicted on this specification are for use in decks or bulkheads requiring oiltight and watertight covers that are not required to be completely flush. Manhole cover assemblies shall be complete with covers, mounting rings, gaskets, studs, washers, hinge assemblies, and nuts.
1.3 Handles, if required, shall be as specified in the ordering information.
1.4 Values stated in inch-pound units are to be regarded as standard.
1.5 This standard is not applicable to certain hazardous cargos. (See 46CFR 153.254 and 46CFR 154.340.)  
1.6 This specification provides design and construction for manhole cover assemblies 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
09-Aug-1998
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ASTM F1144-98 - Standard Specification for Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and Watertight, Hinged
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: F 1144 – 98
Standard Specification for
Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and
Watertight, Hinged
This standard is issued under the fixed designation F 1144; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope B 36/B 36M Specification for Brass Plate, Sheet, Strip, and
Rolled Bar
1.1 This specification provides design and construction
D 2000 Classification System for Rubber Products in Auto-
criteria for a semi-flush, oiltight and watertight bolted hinged
motive Applications
manhole cover assembly.
F 783 Specification for Staple, Handgrab, Handle, and Stir-
1.2 The manhole cover assemblies depicted on this specifi-
rup Rung
cation are for use in decks or bulkheads requiring oiltight and
2.2 ANSI Standards:
watertight covers that are not required to be completely flush.
B1.1 Unified Inch Screw Threads
Manhole cover assemblies shall be complete with covers,
Y14.5M Dimensioning and Tolerancing
mounting rings, gaskets, studs, washers, hinge assemblies, and
B18.2.1 Square and Hex Bolts and Screws, Inch Series
nuts.
2.3 ABS Standard:
1.3 Handles, if required, shall be as specified in the ordering
Rules for Building and Classing Steel Vessels
information.
2.4 Steel Structures Painting Council Standard:
1.4 Values stated in inch-pound units are to be regarded as
SP-10 Surface Preparation Specification No. 10
standard.
2.5 Code of Federal Regulations Standard:
1.5 This standard is not applicable to certain hazardous
CFR 46 Code of Federal Regulations
cargos. (See 46CFR 153.254 and 46CFR 154.340.)
1.6 This specification provides design and construction for
3. Terminology
manhole cover assemblies subjected to lateral pressures such as
3.1 Definitions:
resulting from vehicle loads or hydrostatic pressures. Where
3.1.1 manhole—accessway located in a tank structure.
manhole cover assemblies are subjected to primary or cyclic
3.1.2 semi-flush—refers to the placement of the hinged plate
loads, other reinforcement or construction criteria may be
over the ringed opening (without coaming).
necessary to integrate the manhole assembly with the required
structural reinforcement for openings in decks or bulkheads.
4. Classification
Design of the manhole cover assembly for primary or cyclic
4.1 Type I—15- by 23-in. (381- by 584-mm) size of access
loads is beyond the scope of this specification.
opening
2. Referenced Documents 4.2 Type II—18- by 24-in. (457- by 610-mm) size of access
opening
2.1 ASTM Standards:
2 4.3 Grade 1— ⁄4-in. (6.4-mm) thick cover plate
A 36/A 36M Specification for Structural Steel
2 4.4 Grade 2— ⁄8-in. (9.5-mm) thick cover plate
A 131/A 131M Specification for Structural Steel for Ships
4.5 Grade 3— ⁄2-in. (12.7-mm) thick cover plate
A 153/A 153M Specification for Zinc Coating (Hot Dip) on
3 4.6 Class A Manhole Cover Assemblies— Shall be abrasive
Iron and Steel Hardware
blasted to near white metal in accordance with SSPC SP-10
A 575 Specification for Steel Bars, Carbon, Merchant Qual-
ity, M-Grades
Annual Book of ASTM Standards, Vol 02.01.
Annual Book of ASTM Standards, Vol 09.02.
Annual Book of ASTM Standards, Vol 01.07.
1 8
This specification is under the jurisdiction of ASTM Committee F25 on Ships Available from American National Standards Institute, 11 W. 42nd St., 13th
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on Floor, New York, NY 10036.
Outfitting. Available from American Bureau of Shipping, Corporate Publications Dept.,
Current edition approved Oct. 10, 1998. Published December 1998. Originally Two World Trade Center, 106th Floor, New York, NY 10048.
published as F 1144 – 88. Last previous edition F 1144 – 90. Available from Steel Structures Painting Council, 4400 Fifth Ave., Pittsburgh,
Annual Book of ASTM Standards, Vol 01.04. PA 15213.
3 11
Annual Book of ASTM Standards, Vol 01.06. Available from Superintendent of Documents, Government Printing Office,
Annual Book of ASTM Standards, Vol 01.05. Washington, DC 20402.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 1144–98
3 3
and a commercial marine quality nonhazardous corrosion- use cover plate of ⁄8-in. (9.5-mm) thickness. Plating over ⁄8-in.
inhibiting and oil-resistant primer coating be applied for (9.5-mm) thickness, use cover plate of ⁄2-in. (12.7-mm)
protection for a period of one year during shipping and in thickness.
shipyard handling.
8. Finish
4.7 Class B Manhole Cover Assemblies— Shall be galva-
8.1 Items produced under this specification shall be free of
nized in accordance with Specification A 153.
splinters, sharp edges, burrs, projections, and weld spatters.
5. Ordering Information
8.2 Unless otherwise specified in ordering data, items shall,
after fabrication, have a Class A finish.
5.1 The purchasers ordering information shall include the
following:
9. Sampling
5.1.1 ASTM designation and date.
9.1 For orders for one or two manhole cover assemblies,
5.1.2 Type (see 4.1 and 4.2).
each manhole assembly shall be inspected.
5.1.3 Grade (see 4.3, 4.4, and 4.5).
9.2 For orders for three to ten manhole cover assemblies,
5.1.4 Class see (4.6 and 4.7).
two manhole cover assemblies shall be selected at random. If
5.1.5 Quantity.
any one of them fails to meet requirements, then all manhole
5.1.6 Remarks—Handles (are/are not) required.
cover assemblies in the order shall be inspected.
5.1.7 Approval—Classification society approval (is/is not)
9.3 For orders for more than ten manhole cover assemblies,
required.
they shall be separated into groups of ten (or fraction thereof)
5.1.8 Gasket, if other than specified (see 6.8).
for sampling purposes.
6. Materials and Manufacture
10. Inspection and Testing
6.1 Plate for the cover, ring, hinge pad and hinge blade shall
10.1 Responsibility—Unless otherwise specified in the or-
be in accordance with Specification A 36/A 36M or A 131/
der, the manufacturer is responsible for the performance of all
A 131M steel.
inspection and testing specified herein. The manufacturer may
6.2 Round bar for the handle shall be in accordance with
use his own facilities or any commercial facility acceptable to
Specification F 783, Type A.
the purchaser. The purchaser reserves the right to perform any
6.3 Round bar for the hinge pin shall be of Specification
of the inspections and tests set forth where such are deemed
A 575 steel.
necessary to assure that supplies conform to prescribed require-
6.4 Welded studs shall be ⁄4 in. (19.1 mm)—10 UNC-2A by
ments. Nonconforming manhole cover assemblies shall not be
1 ⁄4 in. (44.5 mm) long and manufactured of ordinary steel to
offered for delivery.
commercial standards. Threads shall be the coarse thread series
10.2 Inspection—The dimensions of the manhole cover
in accordance with the latest issue of ANSI B1.1.
assembly and its components shall be checked to ensure that
6.5 Washers shall be ANSI B18.2.1 Type A, ⁄4-in. (19.1-
they are within specified tolerances.
mm) washer, 2-in. (50.8-mm) by 0.148-in. (3.8-mm) thick
10.3 Test Methods—Each manhole cover assembly shall be
standard flat manufactured of yellow brass, in accordance with
designed to the pressure listed in Table 1 and tested to a
Specification B 36/B 36M.
pressure equal to 1.5 times the design prerssure. The test
6.6 Heavy hex nuts shall be ⁄4 in. (19.1 mm)—10 UNC-2B
pressure shall be held for a minimum of 5 min. There shall be
and manufactured of yellow brass, in accordance with Speci-
no visible sign of leakage, permanent deformation, or other
fication B 36/B 36M. Threads in nuts shall conform to the
indications of structural failure of the manhole cover assembly.
dimensions for coarse threads with tolerances prescribed in
10.3.1 Before delivery, manhole cover assemblies shall be
accordance with ANSI B1.1. The nuts shall conform to
certified as to their watertight and oiltight integrity. Groups of
dimensions prescribed in accordance with ANSI B18.2.1.
manhole cover assemblies whose representative samples pass
6.7 Cotter pin to be in accordance with Specification B 36/
the tightness test shall be certified for watertight and oiltight
1 3
B 36M yellow brass, ⁄8 by 1 ⁄4 in. (3.2 by 44.5 mm) long.
integrity to their design pressure.
6.8 Unless otherwise specified in ordering information,
11. Product Marking
gasket to be rubber, ⁄16 in. (4.8 mm) thick, 50 6 5 durometers
per Classification D 2000 5BC507 A14 E034. For manhole
11.1 Each manhole cover assembly shall be marked with the
cover assemblies for government application, see Annex A2 for
purchase order number, item number from purchase order,
type of gasket.
ASTM designation number, type, grade, class, and manufac-
6.9 Welding to conform to the latest issue of American
turers’ n
...

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