What is the minimum diameter of coach screw rod for 6" pipe?

The minimum diameter of the coach screw rod for a 6" pipe is not permitted due to the structural and safety standards that govern the installation of fire sprinkler systems. When dealing with larger diameter pipes, such as 6 inches, the fastening systems must be capable of withstanding significant loads and stresses associated with the weight of the piping and the water it carries.

Using smaller diameter rods, such as 0.25 or 0.5 inches, would not provide the necessary strength and support, increasing the risk of failure under load. In cases where a suitable screw rod cannot be determined or does not meet the minimum requirements for heavy-duty applications, it is labeled as "not permitted."

Implementing the correct diameter of fastening hardware is crucial for ensuring the overall integrity and reliability of fire protection systems, particularly in areas where safety is paramount. The specified minimum diameter protects against risks that could arise from inadequate support.