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This specification covers requirements for multiplayer pipe type 2 and compression fittings for hot and cold drinking water systems. Multilayer pipe type 2 is produced using a butt-welded aluminum pipe as a core, with an extruded inside layer of crosslinked polyethylene (PEX). An adhesive layer is used to bond the inside layer to the wall of the aluminum pipe. An outer layer of polyethylene (PE) and an adhesive layer are extruded to the outer wall of the aluminum pipe. This specification includes compression fittings and thread or solder adapters for use with pipe and fittings. The pipe dimensions, compression-fitting dimensions, burst pressure, thermal cycling, and excessive temperature-pressure capability shall be in conformance to the specification.
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.
1.1 This specification covers requirements for multilayer pipe type 2 and compression fittings for hot and cold drinking-water systems, with a maximum pressure rating of 1000 kPa (145 psi) at 82°C (180°F).
Note 1—Multilayer Pipe Type 2
1.2 Multilayer pipe type 2 is produced using a butt-welded aluminum pipe as a core, with an extruded inside layer of crosslinked polyethylene (PEX). An adhesive layer is used to bond the inside layer to the wall of the aluminum pipe. An outer layer of polyethylene (PE) and an adhesive layer are extruded to the outer wall of the aluminum pipe.
1.3 Multilayer pipe type 2 is produced in configurations 1 and 2, as referenced in Fig. 1.
1.4 This specification includes compression fittings, which are referenced in Fig. 2 .
1.5 Specifications for thread or solder adapters for use with pipe and fittings meeting the requirements of this specification are given in Annex A1 and Annex A2.
1.6 The following precautionary caveat pertains only to the test method portion 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.
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B283 Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
B455 Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
B547/B547M Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round Tube
B584 Specification for Copper Alloy Sand Castings for General Applications
D618 Practice for Conditioning Plastics for Testing
D1505 Test Method for Density of Plastics by the Density-Gradient Technique
D1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
D1600 Terminology for Abbreviated Terms Relating to Plastics
D1898 Practice for Sampling of Plastics
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
D3222 Specification for Unmodified Poly(Vinylidene Fluoride) (PVDF) Molding Extrusion and Coating Materials
D3350 Specification for Polyethylene Plastics Pipe and Fittings Materials
D3418 Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry
D5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics
F412 Terminology Relating to Plastic Piping Systems
F477 Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe
ANSI StandardANSI/NSF61 Drinking Water System Components--Health Effects
ISO StandardISO10508 Thermoplastics Pipe and Fittings for Hot and Cold Water Systems
ARP StandardAS568A Aerospace Size Standard For O-Rings
ICS Number Code 23.040.45 (Plastic fittings); 23.040.60 (Flanges, couplings and joints)
UNSPSC Code 40170000(Pipe piping and pipe fittings)