Laserfiche WebLink
4.1.6 Backup rings for HDPE flange connections shall be Improved Piping <br />Products Deltaflex SS316-SDR rated for the appropriate pipe SDR, <br />as specified on the Drawings. Flange material shall be 316 <br />Stainless Steel. Gaskets shall be full-face, cloth reinforced, red <br />rubber gaskets, 1 /8-inch thick, 55-75 Durometer Shore D <br />Hardness. Bolts shall be 316 Stainless Steel and in accordance <br />with ASTM F 593, Grade 68M. Nuts shall be 316 Stainless Steel <br />and in accordance with ASTM F 594. <br />4.2 METAL PIPE <br />4.2.1 Carbon steel pipe up to 24 inches in diameter shall be in accor- <br />dance with ASTM A53, Standard Schedule, Grade B, or as <br />specified on the Drawings. <br />4.2.2 Carbon steel pipe 24 inches in diameter and larger shall be in <br />accordance with AWWA C200, or as specified on the Drawings. <br />4.3 METAL PIPE FITTINGS <br />4.3.1 All flanges larger than 2-inch shall be in accordance with ANSI <br />B16.5 Class 150 or as specified in the drawings, made of carbon <br />steel with full face, cloth reinforced, red rubber gaskets, 1/8-inch <br />thick, 55-75 Durometer Shore D Hardness. Flanges shall be epoxy <br />coated. Bolts shall be 316 Stainless Steel and in accordance with <br />ASTM F 593, Grade 68M. Nuts shall be 316 Stainless Steel and in <br />accordance with ASTM F 594. <br />4.3.2 All metal fittings 2-inch diameter and less shall be ASTM A-120 <br />malleable iron or carbon steel (galvanized) screwed type, 150-Ib., <br />unless specified as stainless steel on the drawings. <br />4.3.3 All metal fittings larger than 2-inch diameter and up to 20-inch <br />diameter shall be in accordance with ANSI 816.9. <br />4.3.4 A{I metal fittings larger than 20-inch diameter shall be <br />manufactured in accordance with AWWA C208. The exterior of <br />the fittings installed on the surface shall coated per Section 4.6. <br />4.4 VALVES <br />4.4.1 Valves shall be as specified in the Material List on the drawings. <br />Buttertly valves shall be in accordance with AWWA C504. <br />SPEC. C -PIPING <br />PAGE 5 <br />