What is the maximum support spacing for 1.5 inch steel pipe run in a vertical direction?

The maximum support spacing for 1.5 inch steel pipe run in a vertical direction is determined by the need to ensure structural integrity and prevent undue stress or deformation in the piping system. In this case, supporting the pipe at every floor level provides adequate stability throughout its vertical run.

Vertical piping systems must be adequately supported to prevent sagging and to manage the weight of the pipe and the fluids it carries. By supporting the pipe at every floor level, the potential for excessive movement is minimized, and stress concentrations that could lead to failure or leaks are avoided.

Other options do not provide the same level of support or may not align with standard practices. For instance, supporting at every ceiling level might not be feasible for very tall structures where spacing could exceed recommended limits, and supporting every 10 feet may leave gaps that could allow the pipe to sag or vibrate excessively between supports. Supporting at every wall joint may also not account for the vertical nature of the installation adequately. Thus, supporting at every floor level ensures safety and compliance with relevant codes.