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ASTM F994-86(2022)
Standard Specification for Design and Installation of Overboard Discharge Hull Penetration Connections
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STANDARD published on 1.10.2022
The information about the standard:
Designation standards: ASTM F994-86(2022)
Publication date standards: 1.10.2022
SKU: NS-1086783
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM F994-86(2022) :
This specification covers carbon steel overboard discharge hull penetrations for system piping. Penetrations shall be classified as follows: Type I; Type II (Class 1 and Class 2); Type III (Class 1 and Class 2); and Type IV (Classes 1, 2, and 3). Doubler and insert plates shall be of material with physical properties equal to or better than the reinforced shell plate. Overboard discharges shall be combined to the maximum extent practicable to minimize the number of shell penetrations. Overboard discharges shall be located to minimize recirculation into suction seachests. Shell penetrations shall be located outside of cathodic protection areas. Penetration pipe extension past the shell plate shall be equal to the pipe wall thickness.
Keywords:
discharge hull penetration, hull penetration, marine technology, penetration connection, ships, system piping,, ICS Number Code 47.020.30 (Piping systems)
Additional information
| 1. Scope | ||||||||
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1.1?This specification covers carbon steel overboard discharge hull penetrations for system piping of NPS 1 through NPS 24 (see Note 1). Note 1:?The dimensionless designator NPS (nominal pipe size)
has been substituted in this standard for such TRADITIONAL terms as
nominal diameter, size, and nominal size.
1.2?The minimum pipe schedule and reinforcement dimensions presented in Tables 1-6 are based on specifications in 46 CFR, 56.50-95, and Navy Design Data Sheet 100-1. 1.3?This specification does not include sea chest penetrations. 1.4?This specification does not include penetrations in protective plating. 1.5?The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard. 1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||
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