Ricom elbow PP-AL 45° DN80/125 pipe fitting

Ricom elbow PP-AL 45° DN80/125 is a 45-degree pipe fitting designed for use with ducts or pipes that have nominal diameters DN80 and DN125. Constructed from a combination of polypropylene and aluminum (PP-AL), this elbow provides a smooth directional change while maintaining compatibility between two different diameter sections. It is intended for ventilation and HVAC installations where a gradual bend is required to manage airflow and connect ductwork with differing diameters.

Advantages

The PP-AL composite construction combines the chemical resistance and lightweight properties of polypropylene with the structural stability of aluminum, resulting in a fitting that is corrosion-resistant and dimensionally stable. The 45° angle offers a moderate redirection of airflow that reduces turbulence compared with sharper bends. The fitting is manufactured to provide reliable mating with DN80 and DN125 ducts, ensuring a secure and consistent transition between sizes.

Suitable for

• Ventilation systems in residential and commercial buildings
• HVAC ductwork requiring a 45° change of direction
• Connections between DN80 and DN125 duct or pipe sections
• Air distribution and extraction in mechanical systems

Key specifications

• Material: polypropylene combined with aluminum (PP-AL)
• Angle: 45° bend
• Compatible nominal diameters: DN80 and DN125
• Application: ventilation, HVAC and ducting systems
• Design: transitional elbow for connecting different diameter ducts

How to use

Install the elbow between the DN80 and DN125 duct sections by aligning the respective ends and ensuring a snug fit. Use appropriate clamps, seals or joining accessories compatible with PP-AL components and the specific duct system to achieve an airtight connection. Confirm correct orientation for a 45° directional change and verify that the elbow is supported to prevent strain on adjacent ductwork. Follow any local codes and system-specific instructions regarding fixation and sealing methods.

Usage recommendations

For optimal airflow performance, position the elbow to minimize abrupt changes in cross-sectional flow and verify that connecting flanges or couplings are properly sealed. Avoid exposure to direct flame or high-temperature sources beyond the material limits of polypropylene. Regularly inspect joints for integrity as part of routine HVAC maintenance.