Specifications include, but are not limited to: Water Pipe Class 52 Ductile Iron Push Joint Pipe: Pipe shall be centrifugally cast for water conforming to ANSI/AWWA A21.5/C151, The asphaltic outside coating shall be in accordance with ANSI/AWWA A21.51/ C151. The cement-mortar lining and inside coating shall be in accordance with ANSI/AWWA A21.4/C104 and ANSI/NSF 61. Rubber Gaskets furnished shall be in accordance with ANSI/AWWA A21.11/C111. All coatings, sealants and linings shall be listed by NSF International and conform to the requirements of ANSI/NSF 61, Drinking Water System Components-Health Effects. The exterior of ductile iron pipe shall be coated with a layer of arc-sprayed zinc per ISO 8179. The mass of the zinc applied shall be 200 g/m2 of pipe surface area. A finishing layer topcoat shall be applied to the zinc. The mean dry film thickness of the finishing layer shall not be less than 3 mils with a local minimum not less than 2 mils. The zinc coating system shall conform to ISO 8179-1. Ductile-Iron Mechanical Joint Compact Fittings for Water Service: Fittings shall be ductile iron Class 350 and shall conform to all the requirements of ANSI/AWWA A21.53/C153. Fittings shall have protective asphaltic seal-coat and cement-mortar lining in accordance with ANSI/AWWA A21.4/C104. Rubber-Gasket Joints for Ductile Iron Pressure Pipe, Fittings, Accessories (glands, bolts and rubber gaskets) are to conform to ANSI/AWWA A21.11/C111. Retainer glands shall be Uni-Flange Series 1400 as manufactured by Ford or an approved equal. Retainer glands shall be wedge action type with gland body of high strength ductile iron per ASTM A536, Grade 65-45-12. Gland shall be compatible with all mechanical joints conforming to ANSI/AWWA A21.11/C111. Ductile iron wedge actuating screw heads shall be of break-away type when design torque is attained. Wedges shall be ductile iron, heat treated and hardened to 370 BHN minimum. Retainer Glands shall be provided packaged with all accessories, mechanical joint gasket, T-bolts and nuts.
