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This specification covers metal mechanical cold flare compression fittings with integral disc spring suitable for use with four sizes of cross-linked polyethelene PEX plastic tubing. These fittings are intended for use in cold and hot water distributions systems and hydronic heating systems. Included are the requirements for materials, performance, dimensions, workmanship and markings to be used on the fittings.
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.
Significance and Use
1.1 This specification covers metal mechanical cold flare compression fittings with integral disc spring suitable for use with cross-linked polyethelene PEX plastic tubing in 3/8, ½ , 5/8, and ¾ nominal diameters. that meets the requirements of Specifications F876 and F877. These fittings are intended for use in 100 psi (689.5 kPa) cold and hot water distributions systems and hydronic heating systems operating at temperatures up to and including 180°F (82°C). Included are the requirements for materials, workmanship, dimensions, and markings to be used on the fittings.
1.2 Units—The values stated in inch-pounds units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units which 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 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.
A666 Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
B16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
B140/B140M Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and Shapes
B283 Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
E18 Test Methods for Rockwell 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
ASME StandardsB16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings
NSF StandardsNSF61 Drinking Water System Components-Health Effects
Other StandardMSSSP-104, Wrought Copper Solder Joint Pressure Fittings
ICS Number Code 23.040.40 (Metal fittings)
UNSPSC Code 40183000(Rubber and plastic tubing)