What is the specified distance for 6" hangers on steam piping?

For steam piping, the specified distance for hangers when using a 6" pipe is indeed 21 feet. This distance helps ensure that the pipe is properly supported, which is critical in preventing sagging and potential damage due to the weight of the pipe and the contents flowing through it. Appropriate spacing keeps the system stable and functioning efficiently, minimizing the risk of leaks or failures that could result from improper support. In high-pressure environments, such as those involving steam, these specifications are particularly crucial to maintaining safety and operational integrity. Properly installed hangers can also help mitigate vibrations and other stresses that are common in steam systems.