End Feed Return Bend Copper Pipe Fitting | 6.35mm–76mm | Plumbing U-Bend

Match the fitting's outer diameter (Φ) to your copper pipe's nominal size. For example, Φ15mm fits standard 15mm copper tube; Φ25.4mm (≈1") fits 1-inch copper tube. Always verify your pipe's actual OD before ordering. The center distance determines how tight the U-turn is — a shorter center distance (e.g., 20mm) suits confined spaces, while a longer one (e.g., 200mm) allows more clearance between parallel runs.

Copper end feed fittings generally support working pressures suitable for residential and light commercial plumbing — typically up to 10 bar (≈145 psi) for water systems when properly soldered. Actual ratings depend on pipe size, wall thickness, and installation quality. Contact us to confirm for your specific application.

Copper is naturally corrosion-resistant and is generally suitable for outdoor and damp environments. In most cases, these return bends perform well in exposed plumbing, underfloor heating, and outdoor pipe runs. For aggressive soil conditions or highly acidic water, additional protection or a different alloy may be advisable — contact us if you have a specific environment in mind.

These end feed return bends are designed to fit standard copper tube dimensions commonly referenced in the US and internationally (e.g., ASTM B88, EN 1057). The Φ dimensions listed correspond to the tube outer diameter. Always verify compatibility with your local plumbing code and tube specification before installation.

Yes. End feed fittings require flux and lead-free solder for installation. Clean the pipe end and fitting socket with emery cloth, apply flux to both surfaces, insert the pipe fully into the socket, and apply heat evenly with a torch until solder flows into the joint by capillary action. This creates a leak-free, permanent connection. Always follow local plumbing codes and safety guidelines when soldering.

Thicker walls (1.5mm) generally provide greater mechanical strength and are preferred for higher-pressure systems, commercial applications, or installations subject to vibration or thermal cycling. Thinner walls (1mm) are typically sufficient for standard residential hot and cold water supply. Check your local plumbing code for minimum wall thickness requirements for your application.

The center distance is the measurement between the centerlines of the two parallel pipe runs connected by the return bend. A shorter center distance (e.g., 20mm for the Φ6.35mm size) creates a tighter U-turn, ideal for compact installations. A longer center distance (e.g., 200mm for the Φ76mm size) provides more spacing between parallel pipes, useful when clearance or pipe insulation is needed.