This specification covers the material, dimensions, and construction of a water trap for diesel exhaust. The diesel exhaust water trap system shall consist of a tank and baffles manufactured from a nickel-chromium-molybdenum-columbium alloy, with gaskets made of nonmetallic materials. A minimum of three baffles shall be installed. The traps shall withstand the maximum temperatures specified, be free of paint, and be so designed such as to prevent sea backwash from entering the diesel exhaust system. The trap and piping systems shall prevent dirt accumulation, with the welding being of small, even beading, free of slag and splatter. Pneumatic proof testing of each trap shall be performed with no visible seam leakage and shall conform to the requirements specified.
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1.1 This specification covers the material, dimensions, and construction of diesel exhaust water traps, which shall be required whenever the exhaust is to be expelled through the hull of the vessel.
1.2 The traps are designed to prevent sea backwash from entering the diesel exhaust system.
1.3 The values stated in SI (metric) units shall be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
AmericanWeldingSocie Structural Welding Code Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http://www.aws.org.
B443 Specification for Nickel-Chromium-Molybdenum-Columbium Alloy(UNS N06625) and Nickel-Chromium-Molybdenum-SiliconAlloy (UNS N06219) Plate, Sheet, and Strip
F104 Classification System for Nonmetallic Gasket Materials
MIL-S-901 Requirements for Shock Tests, High Impact, Shipboard Machinery, Equipment and Systems
diesel exhaust systems; piping systems; Diesel exhaust; Nickel-chromium-molybdenum-columbium alloys--specifications; Traps; Water trap;
ICS Number Code 47.020.20 (Marine engines and propulsion systems)
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Citing ASTM Standards
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