PEX minimum radius of curvature
Home Improvement Asked on September 24, 2020
The photographed PEX radius of curvature is approximately 2 feet.
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What is a reasonable curvature for PEX piping?
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What is the minimum RoC?
I ask because if I can avoid using a 90 degree shark bite, that is one less failure (leak) point. Although I really like the idea of one less failure point, I need to be careful not to introduce a curve that will weaken the pipe and cause a burst. The PEX piping runs through the plenum of an office.
One Answer
The minimum bending radius or PEX is 8 times the outside diameter of PEX, (8 x OD). For 1/2" PEX with OD of 5/8", minimum bending radius is 8 x 5/8" = 5".
OD's for 5/8" PEX is.75", 3/4" PEX is .875" and 1" pex is 1.125"
So minimum bending radius for 5/8" PEX is 6", for 3/4" PEX is 7", and for 1" PEX is 9"
These are the minimum bending radii so anything over that is reasonable.
Answered by JACK on September 24, 2020
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