Standard Specification for Docking/Drain Plug and Boss Assemblies [Metric]

ABSTRACT
This specification provides design, construction, and purchasing criteria for docking/drain plug and boss assemblies. Assemblies are intended for installation in shell, rudder, and tank bottom plate. Assemblies shall be installed at the lowest point of a tank or rudder for draining during dry docking. Docking plugs and bosses shall be classified as follows: type I - docking plug and bosses for plating from 8 to 15 mm, and type II - docking plug and bosses for plating greater than 15 to 38 mm. The procedure for installing docking/drain plug and boss assemblies are presented.
SCOPE
1.1 This specification provides design, construction, and purchasing criteria for docking/drain plug and boss assemblies.
1.2 Assemblies are intended for installation in shell, rudder, and tank bottom plate from 8 through 38 mm.
1.3 Assemblies shall be installed at the lowest point of a tank or rudder for draining during dry docking.
1.4 The values stated in SI units are to be regarded as the standard.

General Information

Status
Historical
Publication Date
30-Apr-2004
Drafting Committee
Current Stage
Ref Project

Relations

Buy Standard

Technical specification
ASTM F991M-04 - Standard Specification for Docking/Drain Plug and Boss Assemblies [Metric]
English language
3 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation: F 991M – 04
METRIC
Standard Specification for
1
Docking/Drain Plug and Boss Assemblies [Metric]
This standard is issued under the fixed designation F 991M; 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 4.1.1 ASTM designation and year of issue.
4.1.2 Type (See Section 3).
1.1 This specification provides design, construction, and
4.1.3 Optional nonstandard materials.
purchasing criteria for docking/drain plug and boss assemblies.
1.2 Assemblies are intended for installation in shell, rudder,
5. Materials and Manufacture
and tank bottom plate from 8 through 38 mm.
5.1 Materials:
1.3 Assemblies shall be installed at the lowest point of a
5.1.1 Boss—ABS Grade A or B, plate or bar.
tank or rudder for draining during dry docking.
5.1.2 Plug—Specification B 164 rod or bar.
1.4 The values stated in SI units are to be regarded as the
5.1.3 Other materials may be substituted to suit hull con-
standard.
struction as approved by regulatory bodies.
2. Referenced Documents 5.2 Manufacture:
2
5.2.1 Plugs and bosses shall be machined.
2.1 ASTM Standards:
5.2.2 Threads shall be in accordance with ANSI B2.1.
B 164 Specification for Nickel-CopperAlloy Rod, Bar, and
Wire
6. Dimensions and Tolerances
2.2 Other Documents:
3 6.1 Dimensions shall be as indicated in Fig. 1 and Fig. 2.
ABS Rules for Building and Classing Steel Vessels
4
6.2 Tolerance shall be 61.5 mm.
ANSI B2.1 Standard Pipe Threads Except Dryseal
6.3 Mass shall be as follows:
3. Classification
Type I Type II
3.1 Docking plugs and bosses shall be classified as follows:
3.1.1 TypeI—Dockingplugandbossesforplatingfrom8to
Boss 1.6 kg 5.7 kg
Plug 0.6 kg 1.0 kg
15 mm (see Fig. 1).
Total 2.2 kg 6.7 kg
3.1.2 Type II—Docking plug and bosses for plating greater
than 15 to 38 mm (see Fig. 2).
7. Installation
7.1 All welding shall be to the standards of the Rules for
4. Ordering Information
Building and Classing of Steel Vessels (ABS).
4.1 Orders for material under this specification shall include
7.2 Threads shall be adequately protected during installa-
the following:
tion.
7.3 Fill plug face with portland cement or other suitable
1
This specification is under the jurisdiction of ASTM Committee F25 on Ships
compound and finish flush with face of boss.
and Marine Te
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.