HANGERS AND SUPPORTS

Subpart 1. Section 313. Table 313.3 is amended to read as follows: TABLE 313.3 HANGERS AND SUPPORTS MATERIALS TYPES OF JOINTS HORIZONTAL VERTICAL Cast Lead and Oakum 5 feet, except 10 feet where 10 foot lengths are installed 1,2,3 Base and each floor, not to exceed 15 feet Compression Gasket Every other joint, unless over 4 feet then support each joint 1,2,3 Base and each floor, not to exceed 15 feet Cast-Iron Hubless Shielded Coupling Every other joint, unless over 4 feet then support each joint 1,2,3,4 Base and each floor, not to exceed 15 feet Copper & Copper Alloys Soldered, Brazed, Threaded, or Mechanical 1-1/2 inches and smaller, 6 feet; 2 inches and larger, 10 feet Each floor, not to exceed 10 feet 5 Steel Pipe for Water or DWV Threaded or Welded 3/4 inch and smaller, 10 feet; 1 inch and larger, 12 feet Every other floor, not to exceed 25 feet 5 Steel Pipe for Gas Threaded or Welded 1/2 inch, 6 feet; 3/4 inch and 1 inch, 8 feet; 1-1/4 inches and larger, 10 feet 1/2 inch, 6 feet; 3/4 inch and 1 inch, 8 feet; 1-1/4 inches every floor level Schedule 40 PVC and ABS DWV Solvent Cemented All sizes, 4 feet; allow for expansion every 30 feet 3,6 Base and each floor; provide mid-story guides; provide for expansion every 30 feet 6 CPVC Solvent Cemented 1 inch and smaller, 3 feet; 1-1/4 inches and larger, 4 feet Base and each floor; provide mid-story guides CPVC-AL-CPVC Solvent Cemented 1/2 inch, 5 feet; 3/4 inch, 65 inches; 1 inch, 6 feet Base and each floor; provide mid-story guides Lead Wiped or Burned Continuous Support Not to exceed 4 feet Steel Mechanical In accordance with standards acceptable to the Authority Having Jurisdiction PEX Cold Expansion, Insert, and Compression 1 inch and smaller, 32 inches; 1-1/4 inches and larger, 4 feet Base and each floor; provide mid-story guides PEX-AL-PEX Metal Insert and Metal Compression 1/2 inch; 3/4 inch; 1 inch All sizes 98 inches Base and each floor; provide mid-story guides PE-AL-PE Metal Insert and Metal Compression 1/2 inch; 3/4 inch; 1 inch All sizes 98 inches Base and each floor; provide mid-story guides PE-RT Insert and Compression 1 inch and smaller, 32 inches; 1-1/4 inches and larger, 4 feet Base and each floor; provide mid-story guides Polypropylene (PP) Fusion Weld (socket, butt, saddle, electrofusion), Threaded (metal threads only), or Mechanical 1 inch and smaller, 32 inches; 1-1/4 inches and larger, 4 feet Base and each floor; provide mid-story guides For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm Notes: 1 Support adjacent to joint, not to exceed 18 inches (457 mm). 2 Brace not to exceed 40-foot (12,192 mm) intervals to prevent horizontal movement. 3 Support at each horizontal branch connection. 4 Hangers shall not be placed on the coupling. 5 Vertical water lines shall be permitted to be supported in accordance with recognized engineering principles with regard to expansions and contraction, where first approved by the Authority Having Jurisdiction. 6 For expansion joints, see Table 313.3.1. Subp. 2. Section 313. Table 313.3.1 is added to read as follows: TABLE 313.3.1 Schedule 40 PVC and ABS DWV and Storm Pipe Expansion Table Inside the building thermal envelope Length of Run (ft.) 10 1 20 1 30 Pipe Size Expansion joint length (in.) = L 1.5" 20 28 34 2" 22 31 38 3" 27 38 46 4" 30 43 52 6" 37 52 63 8" 42 59 72 10" 47 66 80 12" 51 72 88 Outside the building thermal envelope Length of Run (ft.) 10 1 20 1 30 Pipe Size Expansion joint length (in.) = L 1.5" 26 36 44 2" 29 41 50 3" 35 49 60 4" 40 56 68 6" 48 68 83 8" 55 77 94 10" 61 86 105 12" 66 94 114 1 Multiple offsets shall be allowed to provide expansion for each 30-foot developed length of run. Subp. 3. Section 313.7. UPC section 313.7 is deleted in its entirety.