The copper U-shaped elbow (RETURN BEND) is designed for 180° fluid turning in the pipeline system. It is suitable for water heating, refrigeration, industrial pipelines and other scenarios to achieve efficient reverse flow of fluid and optimize the pipeline layout in space-constrained environments.
1. Product Features
High-quality copper material: high-purity copper is used, which has strong corrosion resistance and excellent thermal conductivity. It supports welding and brazing processes to ensure long-term and reliable use.
180° turning design: The U-shaped structure provides a smooth fluid turning path, reduces turbulence and pressure drop, and is especially suitable for circulation systems in compact spaces (such as heating and refrigeration circuits).
High sealing performance: The socket connection is combined with the welding process, the interface is tight and leak-free, and it is suitable for medium and low pressure fluid transmission environments.
Flexible adaptability: It supports equal diameter or variable diameter design, and is compatible with cold water, hot water, gas and non-corrosive liquid media.
2. Specifications
Material: copper
Surface treatment: natural copper original color, no coating (anti-oxidation, polishing or tinning treatment is optional).
Pressure level: recommended working pressure ≤1.6MPa.
Temperature range: -20°C ~ 150°C.
Connection method: socket welding (standard) / threaded connection (customization required).
Bending radius: supports short radius (SR) and long radius (LR) design, conventional models default to long radius (low resistance optimization).
3. Optional specifications
Unit: inches, marked as "pipe diameter × bending radius"
Equal diameter U-shaped elbow:
1/2" × LR | 3/4" × SR | 1" × LR
Other sizes: 1/4", 3/8", 1-1/4" (support non-standard customization)
Reduced diameter U-shaped elbow (customization required):
Main pipe to branch pipe: 1" × 3/4" | 3/4" × 1/2"
Special combination: design different diameters at both ends according to requirements.