Good points

Connection 55SC - 2x 23C
Airtight connection
Includes Click-Seal rings
Tool-free assembly

Ubbink Air Excellent 55SC-23C Coupling Piece for DBOX Air Distribution Box 200/800

The Ubbink Air Excellent 55SC-23C DBOX set is used to create a seamless transition from the semi-circular 55SC air distribution system to two round AE23C connections. This coupling piece serves as the link between the DBOX and the 23C duct system, enabling efficient air distribution to multiple outlets. Thanks to its modular design, the coupling piece fits perfectly within the Air Excellent ventilation network and provides a reliable connection ready for immediate use.

Benefits and Features

Flexible transition from 55SC to 23C: Enables a clear connection between semi-circular and round ducts.
Minimal pressure loss: Designed for optimal airflow without unnecessary energy waste.
Antistatic and antimicrobial: Enhances hygiene in the ventilation system by reducing dust adhesion.
Secure and quick installation: Provides an airtight connection without the need for additional sealing tape or complex modifications.
Airtightness class ATC1: Complies with European standard EN 14239 for ventilation ducts and accessories.

Performance and Practical Use

The coupling piece is made of green plastic and has a temperature range from -20 °C to +60 °C, making it suitable for various installation locations such as walls, ceilings or technical rooms. Its construction supports both supply and exhaust air within balanced ventilation systems. The compact dimensions (approximately 147 mm wide) and weight of around 0.25 kg ensure straightforward installation even in confined spaces. Thanks to its antistatic and antimicrobial properties, the system is less prone to dust and bacteria buildup.

Installation and Applications

You install the coupling piece directly between the DBOX distribution box and two 23C ducts. The Air Excellent modular system makes it easy to adjust or expand configurations to meet changing installation requirements. With airtightness class ATC1, you are assured of a stable and efficient ventilation system that meets relevant standards. Maintenance consists of periodic checks for contamination; the robust plastic design ensures long-lasting operation without additional effort.

This coupling piece realises a technically sound and practically applicable transition within the air distribution system, combining performance and ease of installation.