ASTM F1974 - 09

    Standard Specification for Metal Insert Fittings for Polyethylene/Aluminum/Polyethylene and Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene Composite Pressure Pipe

    Active Standard ASTM F1974 | Developed by Subcommittee: F17.10

    Book of Standards Volume: 08.04


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    Abstract

    This specification covers metal insert fittings with split ring and compression nut (compression joint) and metal insert fittings with copper crimp rings (crimp joint) for four sizes of composite pressure pipe. These fittings are intended for use in cold- and hot-water distribution systems operating at a certain temperature range. These fittings are intended for use in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, and radient panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with the composite pipe and fittings. The fittings are classified into two classes with split ring and compression nut and fittings with a copper crimp ring, suitable for use with four sizes of PEX/AL/PEX or PE/AL/PE pipe. The fittings shall be made from one of the following metals: wrought copper, cast copper alloy, machined brass, and forged brass. Different tests shall be conducted in order to determine the following properties: hydrostatic burst, hydrostatic sustained pressure strength, thermocycling, and excessive temperature and pressure capability. The sealing surfaces of the insert shall be smooth and free of foreign material. The fitting walls shall be free of cracks, holes, blisters, voids, foreign inclusions or other defects that are visible to the naked eye and that affect the wall integrity.

    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 metal insert fittings with split ring and compression nut (compression joint) and metal insert fittings with copper crimp rings (crimp joint) for four sizes of composite pressure pipe. These fittings are intended for use in 125 psi (690 kPa) cold- and hot-water distribution systems operating at temperatures up to and including 180 °F (82 °C). (When used in polyethylene/aluminum/polyethylene systems the maximum operating temperature is limited by the pipe to 140 °F (60 °C) and where applicable 180°F (82°C)). Included are the requirements for materials, workmanship, burst pressure, sustained pressure, excessive temperature and pressure, temperature cycling tests, and markings to be used on the fittings and rings. The fittings covered by this specification are intended for use in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, and radient panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with the composite pipe and fittings.

    1.2 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.

    Note 1—The tables show the nominal size in millimetres with the inch size in parentheses. This exception is made to harmonize the nominal size with the two pipe standards, F1281 and F1282.

    1.3 The following precautionary caveat pertains only to the test method portion, Section 9, of this specification. 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 and health practices and determine the applicability of regulatory limitations prior to use.


    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

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

    B36/B36M Specification for Brass Plate, Sheet, Strip, And Rolled Bar

    B62 Specification for Composition Bronze or Ounce Metal Castings

    B75 Specification for Seamless Copper Tube

    B134/B134M Specification for Brass Wire

    B140/B140M Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and Shapes

    B159/B159M Specification for Phosphor Bronze Wire

    B283 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

    D618 Practice for Conditioning Plastics for Testing

    D1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure

    D1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings

    D1600 Terminology for Abbreviated Terms Relating to Plastics

    D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

    D2240 Test Method for Rubber Property--Durometer Hardness

    E18 Test Methods for Rockwell Hardness of Metallic Materials

    F412 Terminology Relating to Plastic Piping Systems

    F1281 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe

    F1282 Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe

    ANSI Standards

    B16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

    Manufacturers Standardization Society Standard

    SP-104 Wrought Copper LW Solder Joint Pressure Fittings Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140, http://www.nsf.org.

    National Sanitation Foundation Standards

    StandardNo.61 for Drinking Water System Components - Health Effects


    ICS Code

    ICS Number Code 23.040.40 (Metal fittings)

    UNSPSC Code

    UNSPSC Code 40171518(Commercial CPVC pipe)


    DOI: 10.1520/F1974-09

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