ASTM WK67785

    Revision of F3348 - 18 Standard Specification for Plastic Press Insert Fittings with Factory Assembled Stainless Steel Press Sleeve for SDR9 Cross-linked Polyethylene (PEX) Tubing

    (What is a Work Item?)

    Active Standard: F3348 - 20a

    Developed by Subcommittee: F17.10 | Committee F17 | Contact Staff Manager



    cold and hot water distribution; cross-linked polyethylene; PEX; plastic insert fittings; plastic press insert fittings; press joints; stainless steel press sleeves;;


    In order to enhance the market acceptability of this new standard I request that this standard be modified to include SDR9 Polyethylene of Raised Temperature (PE-RT) tubing meeting the requirements of ASTM F2769 or ASTM F2623 as an acceptable material, in addition to PEX tubing already called out. The popularity of PE-RT is growing rapidly in these same applications where PEX is being used with this fitting system. The vast majority of standards similar in construction and assembly; brass or plastic insert with a crimp or press sleeve (F1807, F2159 & F2098), already incorporate both materials (PEX F876 & PE-RT F2769) as they are very similar in chemical make-up and possesses the same physical properties necessary for this type of fittings system. The title, scope and any section referring to PEX and its associated standards would be modified to include PE-RT and its associated standards as an alternate material acceptable for this fitting system.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    William Melvin


    F17 (20-03)

    Ballot Item Approved as F3348-2020A and Pending Publication