ASTM F994-86(2022)

Podrobné informace

Označení: ASTM F994-86(2022)

Datum vydání: 01.10.2022

Stran: 7

Země: Americká technická norma

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Anotace

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)