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Pipe shall be supported in accordance with Table 18-29-308.5.
Piping Material | Maximum Horizontal Spacing (feet) | Maximum Vertical Spacing (feet) |
Brass pipe | 10 | 15 |
Cast-iron pipe a | 5 | 15 |
Copper or copper-alloy pipe | 12 | 10 |
Copper or copper-alloy tubing, 1 1/4-inch diameter and smaller | 6 | 10 |
Copper or copper-alloy tubing, 1 1/2-inch diameter and larger | 10 | 10 |
PVC pipe | 4 | 4 |
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm
a The maximum horizontal spacing of cast-iron pipe hangers shall be increased to 10 feet where 10-foot lengths of pipe are installed.
(Amend Coun. J. 3-27-02, p. 82090, § 3)