Hangers & Supports

Proper support spacing is critical to ensure that deflection is kept to a minimum. Support location and spacing is dependent on the pipe diameter, operating temperature of the system, and the location of any concentrated stress loads (i.e., valves, flanges, test equipment and any other heavy system components). Hangers used must have an adequate load-bearing surface free of any rough or sharp edges that could damage the pipe during use. Hangers also must not restrict linear movement of the system due to the effects of thermal expansion and contraction as a result of temperature changes; over-tightening must be avoided.

Hanger Support Spacing

Pipe
Size (in)
Maximum Support (Spacing in Feet)
73°F 80°F 100°F 120°F 140°F
1/2 5 4 1/2 4 1/2 3 2 1/2
3/4 5 1/2 5 4 1/2 3 2 1/2
1 6 5 1/2 5 3 1/2 3
1 1/4 6 6 5 1/2 3 1/2 3
1 1/2 6 1/2 6 5 1/2 3 1/2 3 1/2
2 7 6 1/2 6 4 3 1/2
3 8 7 1/2 7 4 1/2 4
4 9 8 1/2 7 1/2 5 4 1/2
6 10 9-1/2 9 6 5