DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

PIPE TYPEPIPE SIZE (INCHES)MAXIMUMSPACING4 through 5 1 each joint 5/8 Inch6 1 each joint 3/4 Inch8 through 12 1 each joint 7/8 InchPVC 2 and smaller 4 Feet 3/8 Inch2-1/2 through 3-1/2 4 Feet 1/2 Inch4 through 5 4 Feet 5/8 Inch6 4 Feet 3/4 Inch8 4 Feet 7/8 InchMINIMUMHANGER ROD SIZEC. Support horizontal soil pipe near each hub or hubless clamp with spacing of 5 feet maximumbetween hangers. Provide adequate support for no hub pipe to prevent sagging and to maintainstraight runs of DWV pipe.D. Trapeze Hangers: Trapeze hangers shall be spaced for smallest pipe in group. Provide additionalhanger rod at mid span where trapeze length exceeds 4 feet. Secure pipe at each trapeze withstandard pipe straps. Uninsulated copper pipe shall rest on neoprene sleeves. Trapeze typehangers may be used for multiple parallel horizontal pipes.E. Vertical Supports:1. Cast Iron Soil Pipes: Support at not less than every story height and at pipe base.2. Screwed Pipe: Support at 8 feet on center for 1-1/2-inch and smaller pipe. Support at 10feet on center for 2-inch and larger pipe.3. Copper Tubing: Support at 6 feet on center for 1-1/2-inch and smaller pipe. Support at 8feet on center for 2-inch and larger pipe.F. Remove rust from ferrous hanger equipment and rods, and apply one coat of rust inhibitive paintbefore or immediately after erection.G. Provide additional support for heavy valves, specialties, and sway bracing where required.3 .5 SLEEVESA. Provide sleeves where piping passes through walls, floors, roofs, and partitions. Sleeves shallpass through entire thickness of building material and be secured. Sleeves shall be sized largeenough to allow for pipe movement and for continuous insulation. Sleeves shall be installed with1/2 inch annular space between pipe insulation or bare pipe and the interior of the sleeve.Terminate sleeves flush with walls, partitions, and ceilings. Each sleeve shall be utilized for onlyone pipe. Firmly pack space between sleeve and pipe with insulation and seal both ends withsealing compound.B. Seal annular space with fire barrier UL/FM approved foam where sleeves pass through fire ratedassemblies.C. Sleeves used below grade and for penetration of waterproofed walls shall contain integral waterstop. Pipe sleeves shall be watertight with 25-year siliconized sealant joints on both sides of wall.15050-5BASIC MATERIALS AND METHODS