Y-type fitting CK 300 DN125 990322029

Y-Transition for Ventilation Ducts – Reliability and Flexibility in the OnFloor System

This is a key component of the OnFloor air distribution system, designed to connect ventilation ducts of different cross-sections. The Y-shaped transition, with a 125 mm diameter and connection to CK 300 oval duct, enables efficient branching of the installation and connection of additional components such as air outlets or exhausts. The polyethylene (PE) construction ensures durability and corrosion resistance, while factory-installed seals guarantee joint tightness.

This transition is particularly useful during the construction or renovation of ventilation systems in residential and commercial buildings. It allows easy adaptation of the installation to specific room requirements and conditions. Thanks to its ability to be embedded in concrete, the component can be installed during floor slab pouring, ensuring a discreet and aesthetic installation appearance.

Design and Application

The transition is manufactured from high-quality polyethylene (PE), ensuring light weight and resistance to mechanical damage. Its design enables connection between an oval CK 300 duct and a round duct with a 125 mm diameter, allowing seamless integration between different duct types and increasing installation flexibility. The integrated auxiliary reducer simplifies adaptation to existing system components.

The working lengths of the connections are 37 mm and 35 mm respectively, while the total length of the transition is 319 mm. Wall thickness is 2.5 mm, ensuring adequate structural strength. The transition does not feature a clamping collar or anti-static functionality. The raw surface finish on both internal and external sides allows for optional additional protection or painting.

Benefits for Installer and User

• Versatility: Ability to connect an oval CK 300 duct to a round 125 mm duct – ideal for adapting existing installations or creating new, complex ventilation systems.
• Seal Integrity: Factory-installed seals eliminate the risk of joint leakage, translating into system efficiency and enhanced user comfort.
• Durability: Polyethylene (PE) construction ensures resistance to corrosion and mechanical damage – a long-term investment.
• Easy Installation: Design enables quick and simple assembly, reducing installer labor time and lowering project costs.
• Concrete Embedding Capability: Enables discreet integration into building structure during floor slab pouring – aesthetic appearance without additional finishing work.
• Warranty: Two-year manufacturer warranty from Zehnder Group confirms high product quality and provides user peace of mind.