A rolled copper coupling is a type of plumbing fitting used to join two sections of copper pipe. Here are some key points about this type of fitting:
1. Material: Made from high-quality copper, typically annealed (soft) or half-hard.
2. Process: The copper tube is passed through rollers to reduce its diameter and wall thickness, creating the coupling shape.
3. Types:
- Compression couplings
- Soldered (sweated) couplings
- Push-fit couplings
4. Uses:
- Joining copper pipes
- Repairing broken pipes
- Changing pipe diameter
- Connecting dissimilar materials (with appropriate adapters)
5. Advantages:
- Good corrosion resistance
- High thermal conductivity
- Easy to work with compared to rigid fittings
6. Standards: Typically manufactured to ASTM B251 or similar standards
When selecting a rolled copper coupling, consider the specific application, installation method, and any local plumbing codes that may apply.