02-658 C.M.R. ch. 110, § 18 - Water and SteamBoiler Pipe Supports

Current through 2022-14, April 6, 2022

1. 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 appropriate intervals so as to prevent or damp out excessive vibration.
2. Spacing of supports may not be greater than shown in Table 18.
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 disengage by movement of the supporting piping.

Table 18

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)
3/4 or 1
1 1/14 or larger (horizontal)
1 1/14 or larger (vertical)
every floor level
5/8 or 3/4
7/8 or 1


02-658 C.M.R. ch. 110, § 18

The following state regulations pages link to this page.

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.