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NSF/ANSI 358-3-2026: Cross-linked Polyethylene (PEX) Pipe and Fittings for Water-Based Ground-Source (Geothermal) Heat Pump Systems uploaded

  • 1.  NSF/ANSI 358-3-2026: Cross-linked Polyethylene (PEX) Pipe and Fittings for Water-Based Ground-Source (Geothermal) Heat Pump Systems uploaded

    Posted 27 days ago
    Submitter's message
    Please note that a new version of this document has just been published. NSF employees will be able to view it in MasterControl (document #16885); others can use the link below. Thank you for your contributions to this document!
    -- Amanda Zeoli
    Document Name: NSF/ANSI 358-3-2026: Cross-linked Polyethylene (PEX) Pipe and Fittings for Water-Based Ground-Source (Geothermal) Heat Pump Systems
    Description
    The physical and performance requirements in this standard apply to plastic
    piping system components as well as non-plastic components of the ground
    loop heat exchanger including, but not limited to cross-linked polyethylene
    (PEX) pipes, tubing, and fittings used in water-based ground-source heat
    pump systems.
    Download Latest Revision
    Submitter: Amanda Zeoli
    Group: Joint Committee on Plastics and RV Plumbing Components
    Folder: Standards
    Date submitted: 2026-06-19 17:28:16
    Revision: 4


    ---------------------------------
    Thank you,

    Amanda Zeoli (she/her)
    Coordinator, Standards
    NSF

    734-773-4208
    azeoli@nsf.org
    ---------------------------------


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