ARCHIVED REPORTS_2009_26 - Laserfiche WebLink

Home Browse Search

07/23/2003 07:48 661-835-0920 KEH Y PIPE CO., LLC. PAGE 04 2.0 POLIETHYLENA PIPE AND F=GS 2.1 Pipe and tubing famished under this specification shall be manufactured from compounds in compliance with Section 1.0 above. The dimensional and performance characteristics shall conform to the requirements of ASTM F714 for sins VIPS and larger and to ASTM 03035 for sits smaller than VIPS. Each lot of material shall be tested for melt index, density and % carbon. Upon rquest, the Manufacturer shall furnish test data. 2.2 Polyethylene fabricated fittings shall be mainifachn-ed from polyethylene Pipe, sheet stock or molded fittings meeting the material requirements of this specification. 2,3 Pipe shall be pressure rated using the certified 111313 from Section 1.2 and &ball be determined in accordance with the following formula: P = 2-S .DF DR -1 Where DR = Dimension Ratio m Dit P = Internal pressure, psi S = Long term hydrostatic strength, psi (1,600) D = Actual outside diameter, inches t = Minimum wall thickness, inches D -F = Design Factor, dimensionless (0.5 for water (a? 73.4°F) 2.4 Polyethylene fittings, including custom fabrications, shall have the saim internal pressure rating as the mating pipe. At the point of fusion, the wall thickness and outside diameter of the fitting, shall be in accordance with ASTM F714 or D3035 for the same pipe size. 2.5 The pipe Manufacturer's Quality system shall be certified to be in accordance with ISO 9001:2000. 3,0 1QRMiQ2 3.1 HEAT FUSION 3.1.1 Pipe and fittings shall be joined by one of the following types of thermal fusion per the Manufacturer's recommended procedures: Butt fusion, Saddle fusion or Socket fusion. 11.2 Upon request the Manufacturer shall provide fusion ftaining by authorized personnel or an authorized representative. The Contractor shall be responsible for ensuring that personnel have received proper training per the Manufacturer's recommended procedure. Records of training shall be maintained by the Contractor and should not exceed 12 months from date of construction. 3.1.3 Butt fusions performed between pipe ends or pipe ends and fitting outlets shall be widlixi the following allowable wall mismatches: a. 2 DR difference for pipe and fitting diameters 61PS and smaller. b. I DR difference for above 6" through 181% c. No difference for diameters above 18". The difference in DR's is deturnined.ftm, the following DR values: 7.3, 9,11,13.5,17, 21, 26 and 32.5. 3.2 OTHER METHODS OF JOINING 3.2.1 polyethylene pipe and fittings may be joined together or to Maw materials through the use of electrofusion fittings, flange adapters with back-up riechanical coupling$ designed for connecting Polyethylene pipe and fittings to itself or to another material, or ?YU adapters. The Wnu&cuuw of the joining device shall be consulted for proper installation procedures. Spec 3 04/05