Ubbink Air Excellent 34C - 35SC reducer

Ubbink Air Excellent 34C - 35SC Transition Piece

The Air Excellent 34C - 35SC Transition Set is used to connect a 34C duct to a 35SC duct, achieving an immediate 90° change in direction. This set is ideal when combining two different duct types within a single ventilation system, without compromising on airtightness or ease of installation. Thanks to the included 34C Click-Seal Ring and 35SC Seal Ring, you can work quickly without the need for additional sealing materials.

Benefits and Features

• Seamless transition between 34C and 35SC
  Connect two duct types directly while maintaining a stable and organised duct layout.
• Integrated 90° bend
  The fixed angle allows for a controlled directional change within a compact installation space.
• Airtight connection
  The sealing rings minimise air leakage and support reliable system performance.
• Antistatic and antimicrobial
  The design contributes to hygienic air distribution and reduces dust adherence inside the duct.

Performance in Practice

A well-designed transition with bend prevents unnecessary turbulence and extra load on the fan. With a zeta value of 2.38 for both supply and extract air, the pressure loss remains predictable within the system design. This allows you to maintain control over the airflow per room, even at higher volume flows.

The transition set is suitable for temperatures ranging from -20 °C to 60 °C and complies with fire classification Euroclass E. With dimensions of 143 mm length, 114 mm width and 130 mm height, you can seamlessly integrate the element into walls, floors or ceilings. Weighing approximately 0.118 kg, it ensures stable and convenient installation.

Installation and Maintenance

Install the transition set directly between the 34C and 35SC ducts, securing the connection with the integrated rings. Since no sealant or tape is needed, you can work faster and more consistently on site. The mechanical seal is durable and low-maintenance throughout the ventilation system’s lifespan.

This transition set provides a compact, airtight and technically sound connection between 34C and 35SC within the Air Excellent duct system.