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r� <br />Dualoy 3000/1. <br />Fiberglass Pipe and Fittings <br />underground piping for flammable liquids <br />Scope This specification covers the approval, performance, materials and physical <br />properties requirements for buried petroleum product piping in 2- through 6 -in <br />(25-150 mm) diameters for working pressures to 300 psi (2.07 MPa) and <br />temperatures to 150°F (661C). <br />Listing All components furnished under this specification shall be listed with <br />Underwriters' Laboratories (UL) for use as below -grade petroleum <br />product piping. <br />Performance requirements Pipe and fittings shall be suitable for continuous operation at the pressures <br />listed below at a sustained temperature of 150°F (660C). The pipe shall have an <br />integral epoxy liner and a reinforced epoxy exterior coating. <br />Nominal <br />Size <br />Pressure <br />Rating <br />(in) <br />(mm) <br />(psi) <br />(MPa) <br />2 <br />_ <br />50 <br />300 <br />2.07 <br />3 <br />80 <br />200 <br />1.38 <br />4 <br />100 <br />150 <br />1.03 <br />6 <br />150 <br />175 <br />1.21 <br />Materials Liner <br />All filament -wound pipe shall contain a resin -rich liner which shall have a <br />minimum thickness of 0.015 inches (0.38 mm). The resin system used in the <br />liner shall be chemically resistant epoxy resin which has been demonstrated to <br />be satisfactory for the intended service. <br />Structural wall <br />The resins, reinforcements, colorants and other materials when combined as a <br />composite laminate structure shall meet the performance requirements of this <br />specification. Glass fiber reinforcement shall be Type E glass with an epoxy - <br />compatible finish. Glass fiber content shall not be less than 60 percent by <br />weight of the reinforced structural wall. <br />Exterior coating <br />The pipe exterior shall have a 0.005 -inch (0.13 mm) thick resin -rich coating <br />with an organic fibrous reinforcement. <br />