Provide insert and sheet metal shield covering entire circumference of pipe. Inserts for Hot Piping (piping conveying materials at more than 60F): Insert only. For clevis or band hangers that support pipe from bottom: Insert and sheet metal shield shall cover lower 180 degrees of pipe, or entire circumference of pipe. For trapeze hangers or clamped pipe: Insert and sheet metal shield shall cover entire circumference of pipe. Inserts for piping less than 3/4-inch diameter: Not required except for piping conveying materials less than 45ºF. Minimum Compressive Strength of Insert Material: 100 psig for sizes smaller than NPS 6. 600 psig for sizes NPS 6 and larger. Insert Length: Extend 2 inches beyond sheet metal shield. Vapor barrier: meeting ASTM C1136, with 0.02 perms maximum water vapor permeance. Adhesives shall comply with NFPA 90-A. Sheet Metal Shield Dimensions for Pipe: Not less than the following: NPS 1/4 to NPS 3-1/2: 12 inches long and 0.048 inch thick. NPS 4: 12 inches long and 0.06 inch thick. NPS 5 and NPS 6: 18 inches long and 0.06 inch thick NPS 8 to NPS 14: 24 inches long and 0.075 inch thick NPS 16 to NPS 24: 24 inches long and 0.105 inch thick Manufacturers Cooper B-Line Pipe Shields Inc. Rilco Manufacturing Company Engineered Products. American Mechanical Insulation ERICO International Corp PIPE SLEEVES: Furnish and set pipe sleeves per details on drawings. DIELECTRIC FITTINGS: For pipe 2 inch and less: Provide coupling. (Dielectric unions are not acceptable). For pipe 2-1/2 inch and larger: Provide flange with dielectric gasket and bolt sleeves. On copper pipe, copper companion flanges by CTS Fabrication USA may be used. Dielectric waterways are prohibited for all systems.
Provide insert and sheet metal shield covering entire circumference of pipe. Inserts for Hot Piping (piping conveying materials at more than 60F): Insert only. For clevis or band hangers that support pipe from bottom: Insert and sheet metal shield shall cover lower 180 degrees of pipe, or entire circumference of pipe. For trapeze hangers or clamped pipe: Insert and sheet metal shield shall cover entire circumference of pipe. Inserts for piping less than 3/4-inch diameter: Not required except for piping conveying materials less than 45ºF. Minimum Compressive Strength of Insert Material: 100 psig for sizes smaller than NPS 6. 600 psig for sizes NPS 6 and larger. Insert Length: Extend 2 inches beyond sheet metal shield. Vapor barrier: meeting ASTM C1136, with 0.02 perms maximum water vapor permeance. Adhesives shall comply with NFPA 90-A. Sheet Metal Shield Dimensions for Pipe: Not less than the following: NPS 1/4 to NPS 3-1/2: 12 inches long and 0.048 inch thick. NPS 4: 12 inches long and 0.06 inch thick. NPS 5 and NPS 6: 18 inches long and 0.06 inch thick NPS 8 to NPS 14: 24 inches long and 0.075 inch thick NPS 16 to NPS 24: 24 inches long and 0.105 inch thick Manufacturers Cooper B-Line Pipe Shields Inc. Rilco Manufacturing Company Engineered Products. American Mechanical Insulation ERICO International Corp PIPE SLEEVES: Furnish and set pipe sleeves per details on drawings. DIELECTRIC FITTINGS: For pipe 2 inch and less: Provide coupling. (Dielectric unions are not acceptable). For pipe 2-1/2 inch and larger: Provide flange with dielectric gasket and bolt sleeves. On copper pipe, copper companion flanges by CTS Fabrication USA may be used. Dielectric waterways are prohibited for all systems.
MS221113.docx