The 3/8 COP CRIMP RING is a:
🔩 3/8" Copper PEX Crimp Ring
It’s a small metal ring used in PEX plumbing systems to secure tubing onto a barbed fitting.
⚙️ What it is
- Size: 3/8 inch
- Material: copper (COP = copper)
- Type: crimp ring (PEX connection hardware)
🔧 What it does
A crimp ring is used to:
- Slide over PEX tubing
- Be compressed with a crimp tool
- Permanently clamp the PEX pipe onto a brass or poly barb fitting
- Create a watertight seal
🧰 Where it’s used
- Residential plumbing (hot & cold water lines)
- Fixture supply lines (toilets, sinks, faucets)
- Manifold PEX systems
- Hydronic/radiant heating systems (in some cases)
🧠 Simple explanation
It’s basically a metal band that gets squeezed tight around PEX tubing to lock it onto a fitting so it doesn’t leak or pull off.
🔧 How it works (basic steps)
- Slide crimp ring onto PEX tubing
- Push tubing onto barb fitting
- Position ring over the connection
- Use crimp tool to compress ring evenly
- Done → permanent seal
⚠️ Important notes
- Must use the correct 3/8" crimp tool gauge
- Needs to meet ASTM F1807 standard (for copper rings)
- Must pass a go/no-go gauge test after crimping
- Not reusable once crimped
