What is used to protect PEX passing through metal studs or plates?

The use of grommets to protect PEX (cross-linked polyethylene) piping as it passes through metal studs or plates is critical for ensuring the integrity and longevity of the piping system. Grommets are designed to provide a protective barrier between the harsh edges of metal and the flexible PEX tubing. This reduces the risk of abrasion or damage that can occur when the tube rubs against sharp edges or is subjected to movement within the framing structure.

Using grommets helps to maintain the physical condition of the PEX, ensuring that it remains free from leaks and avoiding potential failures that could arise from repeated wear and tear. Grommets help fill the space between the piping and the stud or plate, preventing any direct contact that might compromise the PEX.

While other options like plastic sleeves, metal clamps, and rubber cushioning might offer some degree of protection, they do not specifically address the issue of sharp edges as effectively as grommets do. Plastic sleeves may not provide a secure fit or the necessary durability, and while rubber cushioning could absorb some shock, it also may not effectively protect from direct abrasion. Metal clamps are primarily for securing pipes rather than protecting them from damage. Thus, using grommets is recognized as the best practice in this situation