1 02/18 COPPER-CORE PIPING SYSTEMS SPECIFICATIONS COPPER-CORE shall be used where specified for low temperature hot water, chilled water, or dual-temp services using a rubber ring joining method. Unless otherwise specified, all pipe, fittings, valves and accessories shall conform to the requirements of ANSI B31.1 and shall be of the proper type for pressure and temperature of the heating or cooling water. COPPER CARRIER PIPE: Carrier pipe shall be Type "K" hard drawn Copper and comply with ASTM B-88. COPPER CORE COUPLING: The coupling shall be a grooved bronze coupling installed at the factory, as shown on page three. RUBBER SEALING RINGS: The sealing rings shall be molded high temperature (HT) heat resistant Ethylene Propylene Diene Monomer (EPDM) using a properly vulcanized compound. The ring surfaces shall be smooth and free from all porosity and internal voids. CASING PIPE: The casing shall be [Polyvinyl Chloride (PVC)] pipe of virgin PVC resin meeting the minimum classification requirements of ASTM D1784 or [High Density Polyethylene (HDPE)]. The thickness for PVC casing shall be as shown on page three. Consult manufacturer for HDPE dimensional data. RUBBER END SEALS: Rubber end seals for insulated COPPER-CORE shall be a high temperature (HT) heat resistant Ethylene Propylene Diene Monomer (EPDM) molded rubber compound. All surfaces shall be smooth and free of voids. End seals for 6”Ø shall be high temperature (HT) rubber with a compression type seal. POLYURETHANE FOAM INSULATION: The insulation shall be Polyurethane Foam and shall meet the following specifications: Type: Two component urethane Compressive Strength: 40 psi parallel min at 5% comp Shrinkage: None at 70ºF Free Rise Density: 2.0 to 3.0 lbs./cubic foot Aged "K" (70ºF - 72 hrs) 0.16 BTU-in./hour-ºF-ft.2 Closed Cell Content: 90% Insulation concentricity: Carrier Pipe shall be concentric to casing pipe. The allowable maximum deviation from centerline of carrier pipe shall be plus or minus 1/4 inch at the casing center point and plus or minus 1/16 inch at the end seals.