What is the maximum distance between hangers for 1" schedule 40 pipe?

The correct answer regarding the maximum distance between hangers for 1" schedule 40 pipe is indeed 12 feet. Proper installation of piping systems is crucial for safety and functionality, and the spacing of hangers plays a significant role in this.

When it comes to supporting 1" schedule 40 pipes, building codes and standards, such as those outlined by the National Fire Protection Association (NFPA) and the American National Standards Institute (ANSI), specify that hangers must be installed at appropriate intervals to ensure the pipes remain secure and do not sag or become damaged over time.

The reason 12 feet is the maximum spacing is primarily related to the weight and flexibility of the pipe when it is filled with water or subjected to temperature changes. This distance helps maintain structural integrity and ensures that the pipes can accommodate thermal expansion without undue stress. If the hangers are placed further apart than this specified distance, there is a risk of pipe sagging, which can lead to leaks, joint separation, or even structural failure under certain conditions.

Other distances listed in the options, although they might seem reasonable, do not align with standard practices for 1" schedule 40 pipe installations. Thus, adhering to the 12-foot maximum spacing is essential for safe