How often should 3/4" or 1" steel pipe be supported?

The correct answer is based on the National Fuel Gas Code's guidelines concerning the support of steel piping. Specifically, 3/4" or 1" steel pipe should indeed be supported at intervals of every 8 feet. This requirement ensures that the pipe remains stable and secure, reducing the risk of sagging or other structural issues that could arise from inadequate support.

Supporting the pipe at these intervals is crucial for maintaining the integrity of the gas delivery system. If pipes are not adequately supported, they may experience excessive stress or strain, potentially leading to leaks or other safety hazards.

The specified interval of 8 feet considers both the physical characteristics of these pipe sizes and the general safety practices recommended in the industry. Proper installation and adherence to these guidelines are vital for ensuring compliance with safety standards and protecting against possible failures in the gas distribution system.