Section 658-109-20 - Water and Steam Boiler Pipe Supports1. Piping shall be supported with pipe hooks, metal pipe straps, bands, brackets, or hangers suitable for the size of the piping and shall be of adequate strength and quality and located at intervals so as to prevent or damp out excessive vibration.2. Spacing of supports shall not be greater than shown in Table 9-20.3. Supports, hangers, and anchors shall be installed so as to not interfere with the free expansion and contraction of the piping between anchors. All parts of the supporting equipment shall be designed and installed so that they will not be disengaged by movement of the supporting piping. Table 9-20
Support of Piping
| Steel Pipe, Nominal Size of Pipe (Inches) | Spacing of Supports (Feet) | Nominal Size of Tubing (Inch O.D.) | Spacing of Supports (Feet) |
1/2
3/4 or 1
1 1/14 or larger (horizontal)
1 1/14 or larger (vertical) | 6
8
10
every floor level | 1/2
5/8 or 3/4
7/8 or 1 | 4
6
8 |
02-658 C.M.R. ch. 109, § 20