§ 119.500 46 CFR Ch. I (10–1–09 Edition)

Subpart E—Bilge and Ballast of not more than 19.8 meters (65 feet) in Systems length must have a portable hand bilge pump that must be: § 119.500 General. (1) Capable of pumping water, but not necessarily simultaneously, from all (a) A vessel must be provided with a watertight compartments; and satisfactory arrangement for draining (2) Provided with suitable suction any watertight compartment, other and discharge hoses capable of reaching than small buoyancy compartments, the bilges of each watertight compart- under all practicable conditions. Sluice ment, and discharging overboard. valves are not permitted in watertight (c) A second power pump is an ac- bulkheads. ceptable alternative to a hand pump if (b) Special consideration may be it is supplied by a source independent given to vessels, such as high speed of the first power bilge pump. craft, which have a high degree of sub- division and utilize numerous small § 119.530 Bilge high level alarms. buoyancy compartments. Where the (a) Each vessel must be provided with probability of flooding of the space is a visual and audible alarm at the oper- limited to external hull damage, com- ating station to indicate a high water partment drainage may be omitted pro- level in each of the following normally vided it can be shown by stability cal- unmanned spaces: culations, submitted to the cognizant (1) A space with a through-hull fit- OCMI, that the safety of the vessel will ting below the deepest load waterline, not be impaired. such as a lazerette; § 119.510 Bilge piping system. (2) A machinery space bilge, bilge well, shaft alley bilge, or other spaces A vessel must be provided with a pip- subject to flooding from sea water pip- ing system that meets § 56.50–50 in sub- ing within the space; and chapter F of this chapter, with the fol- (3) A space with a non-watertight clo- lowing exceptions: sure , such as a space with a non-water- (a) The space forward of the collision tight hatch on the main deck. bulkhead need not be fitted with a (b) A visual indicator must be pro- bilge suction line when the arrange- vided at the operating station to indi- ment of the vessel is such that ordi- cate when any automatic bilge pump is nary leakage may be removed from operating. this compartment by the use of a hand portable bilge pump or other equip- [CGD 85–080, 61 FR 922, Jan. 10, 1996; 61 FR ment, and such equipment is provided; 20556, May 7, 1996] and § 119.540 Ballast systems. (b) The vessel need not comply with § 56.50–50(f) in subchapter F of this Solid and water ballast must comply chapter. with the requirements of subpart L of part 116 of this subchapter. [CGD 85–080, 61 FR 922, Jan. 10, 1996, as amended by CGD 97–057, 62 FR 51047, Sept. 30, 1997] Subpart F—Steering Systems

§ 119.520 Bilge pumps. § 119.600 General. (a) Each vessel must be provided with A self-propelled vessel must meet the bilge pumps in accordance with § 56.50– applicable requirements for main and 55 in subchapter F of this chapter, with auxiliary steering apparatus in sub- the following exceptions: chapters F (Marine Engineering) and J (1) Note 1 in Table 56.50–55(a) is not (Electrical Engineering) of this chap- applicable and should be disregarded; ter. and (2) A non-self-propelled vessel must Subpart G—Piping Systems comply with § 56.50–55(a) in subchapter F of this chapter instead of § 56.50–55(b). § 119.700 General. (b) In addition to the requirements of Materials used in piping systems paragraph (a) of this section, a vessel must meet the requirements of this

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subpart and be otherwise acceptable to (2) Aluminum fuel piping on an alu- the cognizant OCMI. minum hulled vessel, if at least Sched- ule 80; § 119.710 Piping for vital systems. (3) Aluminum bilge, ballast, and (a) Vital systems are those systems firemain piping on an aluminum hulled that are vital to a vessel’s surviv- vessel; ability and safety. For the purpose of (4) If acceptable to the cognizant this part the following are vital sys- OCMI, nonferrous metallic piping with tems: a melting temperature above 927° C (1) Fuel systems; (1,700° F) may be used in vital systems (2) Fire main; that are deemed to be galvanically (3) CO2 and Halon systems; compatible; and (4) Bilge system; (5) Other uses specifically accepted (5) Steering system; by the cognizant OCMI. (6) Propulsion system and its nec- (b) Where nonferrous metallic mate- essary auxiliaries and controls; rial is permitted for use in piping sys- (7) Ship’s service and emergency elec- tems by this subpart, the restrictions trical generation system and its nec- in this paragraph apply: essary auxiliaries; and (1) Provisions must be made to pro- (8) A marine engineering system tect piping systems using aluminum al- identified by the cognizant OCMI as loys in high risk fire areas due to the being crucial to the survival of the ves- low melting point of aluminum alloys; sel or to the protection of the per- (2) Provisions must be made to pre- sonnel on board. vent or mitigate the effect of galvanic (b) For the purpose of this part, a corrosion due to the relative solution system not identified in paragraph (a) potentials of copper, aluminum, and al- of this section is a non-vital system. loys of copper and aluminum, which (c) Piping used in a vital system are used in conjunction with each must meet § 56.60 in subchapter F of other, steel, or other metals and their this chapter, except that § 119.730 of alloys; this part replaces § 56.60–20 in sub- (3) A suitable thread compound must chapter F of this chapter. be used in making up threaded joints in aluminum pipe to prevent seizing. Pipe § 119.715 Piping subject to more than in the annealed temper must not be 1,034 kPa (150 psig) in non-vital sys- tems. threaded; (4) The use of aluminum alloys with Piping subject to more than 1034 kPa a copper content exceeding 0.6 percent (150 psig) in a non-vital system must be is prohibited; and designed, fabricated, and inspected in (5) The use of cast aluminum alloys accordance with the principles of in hydraulic fluid power systems must American National Standards Institute be in accordance with the requirements (ANSI) B 31.1 ‘‘American National of § 58.30–15(f) in subchapter F of this Standard Code for Pressure Piping, chapter. Power Piping,’’ or other standard spec- ified by the Commandant. PART 120—ELECTRICAL § 119.720 Nonmetallic piping materials. INSTALLATION Nonmetallic piping materials, includ- ing nonmetallic flexible hose assem- Subpart A—General Provisions blies, must meet the requirements of Sec. § 56.60–25 in subchapter F of this chap- 120.100 Intent. ter. 120.115 Applicability to existing vessels.

§ 119.730 Nonferrous metallic piping Subpart B—General Requirements materials. 120.200 General design, installation, and (a) Nonferrous metallic piping mate- maintenance requirements. rials are acceptable for use in the fol- 120.210 Protection from wet and corrosive lowing: environments. (1) Non-vital systems; 120.220 General safety provisions.

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