ASTM F3347 - 20a

    Standard Specification for Metal Press Insert Fittings with Factory Assembled Stainless Steel Press Sleeve for SDR9 Cross-linked Polyethylene (PEX) Tubing and SDR9 Polyethylene of Raised Temperature (PE-RT) Tubing

    Active Standard ASTM F3347 | Developed by Subcommittee: F17.10

    Book of Standards Volume: 08.04


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    1. Scope

    1.1 This specification covers copper alloy metal press insert fittings with factory assembled stainless steel press sleeves incorporating 3 view holes and tool locator ring. These fittings are for use with cross-linked polyethylene (PEX) tubing in nominal sizes 5/16 , 3/8 , 1/2 , 5/8 , 3/4 , 1, 11/4 , 1 1/2 , and 2 that meet the requirements for Specification F876 or F3253 and for use with polyethylene of raised temperature (PE-RT) tubing in nominal sizes 3/8 , 1/2 , 3/4 , 1, 11/4 , 11/2 , and 2 that meet the requirements of Specification F2769. These fittings are intended for use in 100 psi (689.5 kPa) systems operating at temperatures up to, and including, 180 °F (82 °C). The requirements for materials, workmanship, dimensions, and markings to be used on the fittings and sleeves are also included. The components covered by this specification are intended for use in residential and commercial, hot and cold, potable water distribution systems as well as sealed central heating, including under-floor heating/cooling systems, and residential fire sprinkler systems.

    1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    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

    A269/A269M Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

    B16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines

    B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

    B283/B283M Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

    B371/B371M Specification for Copper-Zinc-Silicon Alloy Rod

    B584 Specification for Copper Alloy Sand Castings for General Applications

    D1600 Terminology for Abbreviated Terms Relating to Plastics

    D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

    E92 Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

    F412 Terminology Relating to Plastic Piping Systems

    F876 Specification for Crosslinked Polyethylene (PEX) Tubing

    F877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution Systems

    F2769 Specification for Polyethylene of Raised Temperature (PE-RT) Plastic Hot and Cold-Water Tubing and Distribution Systems

    F3253 Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic Distribution Systems


    ICS Code

    ICS Number Code 23.040.45 (Plastics fittings)

    UNSPSC Code

    UNSPSC Code 13111076(Cross linked polyethylene PEX); 40170000(Pipe piping and pipe fittings)


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

    DOI: 10.1520/F3347-20A

    Citation Format

    ASTM F3347-20a, Standard Specification for Metal Press Insert Fittings with Factory Assembled Stainless Steel Press Sleeve for SDR9 Cross-linked Polyethylene (PEX) Tubing and SDR9 Polyethylene of Raised Temperature (PE-RT) Tubing, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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