1.1 This specification establishes requirements for fabricated fittings intended for use with outside-diameter controlled cross-linkable polyethylene pipe and tubing. These fittings are manufactured by heat-fusion joining shape-modified cross-linkable polyethylene components prepared from pipe, molded fittings, sheet, billet, or block. Included are requirements for materials, design, workmanship, minimum dimensions, marking, test methods, and quality control. 1.2 Pressure rating of the fabricated-fitting design is beyond the scope of this standard and shall be established by the fitting manufacturer. This specification includes requirements for both elevated temperature pressure-tests and short-term pressurization tests to demonstrate a reasonable level of performance of the fabricated-fitting design at the pressure rating established by the fitting manufacturer.
This new standard will establish a new product-type to the fittings industry which is manufactured from a cross-linkable polyethylene formulae by combined action of heat and moisture. Such fittings should be of great interest to the industry for larger diameter (6 NPS and greater) PEX pipelines where elevated temperature applications are anticipated. Users would include the pipeline construction industry as well as fittings manufacturers.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development