A PEX ring should be ____________ inches from the edge of the tubing before you tighten the cinch clamp?

A PEX ring should be ____________ inches from the edge of the tubing before you tighten the cinch clamp?

• A. 1/8
• B. 1/32
• C. 1/16
• D. 1/4

Answer: (C)

Position the PEX ring about 1/16 inch from the end of the tubing before tightening the cinch clamp. This small gap lets the clamp bite firmly into the tubing and press it securely against the fitting without crushing the tube end. If the ring sits too far from the end, the tube may not seat fully and the seal can be compromised. If it’s too close or too tight, the tube end can deform and the clamp may not tighten evenly, risking leaks. So 1/16 inch is the optimal spacing to ensure a reliable, clean seal.

Position the PEX ring about 1/16 inch from the end of the tubing before tightening the cinch clamp. This small gap lets the clamp bite firmly into the tubing and press it securely against the fitting without crushing the tube end. If the ring sits too far from the end, the tube may not seat fully and the seal can be compromised. If it’s too close or too tight, the tube end can deform and the clamp may not tighten evenly, risking leaks. So 1/16 inch is the optimal spacing to ensure a reliable, clean seal.