A three-inch Schedule 40 pipe secured with a 3-R-2 pipe strap rests on a rooftop support base. A support spacing schedule correlates pipe sizes from one-half inch to one-and-one-quarter inches or larger with maximum support distances from six to ten feet.
3" SCH. 40 PIPE 3-R-2 PIPE STRAP DISTANCE OF SUPPORTS (FT.) SUPPORT OF GAS PIPING SIZE OF PIPE (IN.) 1-1/4 OR LARGER 1/4 OR LARGER 1/2 10 8 6
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