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11 1.Rpr 11 03 07:50a R TRR?WESTSTRR <br />(5 77-0106 p.9 <br />Dimensions and Pipe dimensions <br />tolerances Pipe shall be manufactured to steel pipe outside diameters for all sizes. Pipe outside <br />diameter tolerances shall not exceed ¢1 %. <br />Wall thickness <br />The total wall thickness of pipe fumished under this specification shall not at any point be <br />greater than 120°x6 nor less than 871h% of the nominal thickness. <br />Fittings dimensions <br />All fittings supplied under this specification shall have face-to-face dimensions and <br />laying lengths as specified In the manufacturer's literature. <br />Joining methods Tapered bell x spigot adhesive -bonded joints <br />Pipe and fittings shall be joined by means of a matching taper adhesivejoint Adhesives <br />used forjoining components shall be compatible with all intended fluids. The adhesive <br />systems shall be used in accordance with the manufacturer's recommendations. <br />Adapters and crossovers <br />The following adapters and crossovers shall be provided as required: <br />Bell x NPT threaded female Bell x NPT threaded male <br />Spigot x NPT threaded female Spigot x NPTthreaded male <br />Ranges <br />Flanges shall be two-piece (van Stone) type with raised grooves on the sealing face. <br />Fiberglass -reinforced stub ends are to be adhesive bended to the pipe orfitting. <br />Workmanship The pipe and fittingsshall befreefrom defects including delamination, indentations, <br />pinholes, foreign inclusions, bubbles and resin -starved areas which, due to their nature, <br />degree or extent, detrimentally affect the strength and serviceability of pipe or fittings. <br />The pipe and fittings shall be as uniform as commercially practicable in color, opacity, <br />density and other physical properties. <br />Testing Proof testing <br />Fittings shall be hydrostatically tested according to UL specifications by the manufac- <br />turer to rated pressure priorto shipment for signs of leakage or porosity. <br />ouslity control testing <br />A sample of pipe shall be tested at a frequency specified by ULto determine <br />conformance of the materials to the short-term circumferential stress requirement <br />tabulated above. <br />Marking Each component shall be marked to show the following: <br />Underwriters' Laboratories listing mark <br />Manufacturer's name <br />Maximum pressure rating <br />, ;, <br />