For which size of CPVC pipe is the recommended hanger spacing 6' 6"?

The recommended hanger spacing for CPVC pipe is determined by the outside diameter and weight of the pipe, ensuring adequate support and preventing sagging or damage. For a 1¼-inch CPVC pipe, the guideline specifies a hanger spacing of 6 feet 6 inches, which provides balance between support and flexibility, accommodating thermal expansion without stressing the fittings. This recommended spacing helps maintain the integrity of the piping system and is in line with industry standards.

Other sizes of CPVC pipe, such as 1½", 2½", or 3", generally require closer hanger spacing due to their larger diameters which can lead to greater weight and potential sagging. Consequently, these pipes might have recommended spacings that are shorter than that for the 1¼" size.