A. Strain: Piping shall be installed so that it is subject to no unnecessary strain.
B. Spacing: The following is the minimum spacing of supports which should be used in continuous piping installations.
3/8 inch or 1/2 inch pipe 6 feet
3/4 inch or 1 inch pipe 8 feet
11/4 inch or larger (horizontal) 10 feet
11/4 inch or larger (vertical) every floor level
C. Short Pipes: When the length of pipe is shorter than that given in the above table, it shall be adequately supported.
D. Change Of Direction: Whenever there is a change of direction of forty five degrees (45°) or more or branched fitting is used, support should be provided on at least one side of the bend or fitting, preferably within six inches (6") of this point, unless other supports render this unnecessary.
E. Strength And Quality: Only such metal pipe straps, iron hooks, hook plates, or hangers suitable for the size of the pipe to be secured, and of standard strength and quality, shall be used for supporting piping.
F. Larger Pipe: Pipe straps and iron hooks shall not be used for supporting pipe of a size over two inches (2"). Pipe larger than this size, when run horizontal and to be fastened to floor joists or beams, shall be supported with pipe hangers; or when run horizontal and to be fastened to side walls, hook plates shall be used. Vertical pipe over two inches (2") in size shall be securely fastened to the wall with the band straps.
G. Pipes Run On Wood: When piping is run on wood walls, partitions or ceilings, the supports shall be securely screwed (not nailed) to the wood work at intervals specified in subsection B of this section.
H. Masonry, Concrete, Brick Or Tile Walls: When piping is run on masonry, concrete, brick or tile walls, it shall be rigidly fastened by hooks, metal straps, or pipe hangers which are securely held to the wall, partition or ceiling by the use of suitable expansion bolts or other approved devices, spaced at the distances given in subsection B of this section. If this method is not practicable, the hooks, metal straps, or pipe hangers should be fastened by screws to plugs or blocks, which should be firmly embedded in the masonry, or to wood strips securely fastened to the masonry. Pipes shall not be fastened to walls or chimneys or flues. (Ord. 15.28)