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    ASTM F1431 - 92(2021)

    Standard Specification for Water Trap for Diesel Exhaust

    Active Standard ASTM F1431 | Developed by Subcommittee: F25.11

    Book of Standards Volume: 01.07

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    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.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    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 units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

    1.4 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.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B443 Specification for Nickel-Chromium-Molybdenum-Columbium Alloy and Nickel-Chromium-Molybdenum-Silicon Alloy Plate, Sheet, and Strip

    F104 Classification System for Nonmetallic Gasket Materials

    Other Documents

    ABS Rules for Building and Classing Steel Vessels Available from American Bureau of Shipping (ABS), ABS Plaza, 1701 City Plaza Dr., Spring, TX 77389, http://www.eagle.org.

    Military Standard


    ICS Code

    ICS Number Code 47.020.20 (Marine engines and propulsion systems)

    UNSPSC Code

    UNSPSC Code 40142502(Liquid traps); 25111900(Marine craft systems and subassemblies)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/F1431-92R21

    Citation Format

    ASTM F1431-92(2021), Standard Specification for Water Trap for Diesel Exhaust, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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