In industrial occupancies, gas pipe laid in solid floors must be installed in what manner?

In industrial settings, gas piping that is installed in solid floors should be laid in channels. This method allows for proper support and protects the pipeline from damage, while also facilitating maintenance and inspection. Channels provide a dedicated space for the gas lines, preventing them from being encased in concrete or restricted by the slab, which can complicate future repairs or modifications.

The use of channels also enhances safety by ensuring that any potential leaks are more easily detected and managed. Proper drainage can be incorporated into the channel design, further minimizing risks associated with gas accumulation. This method is consistent with best practices outlined in the National Fuel Gas Code, emphasizing the importance of secure installation that also considers safety and accessibility.