Triple Bypass Element with 3x75 Plastic Connectors

The PK series triple bypass element (also known as a crossover bridge or air tunnel) is a specialized installation component designed for the simultaneous cross-over bypass of three ventilation routes or other utility lines. This solution allows for the parallel routing of three 75mm flexible ducts in a single plane when encountering obstacles under conditions of restricted installation height.

The modification features a bypass recess depth of 44 mm, allowing it to safely cross over utilities of corresponding height. The use of high-impact plastic connectors in the PK series ensures rigid fixation of the flexible duct and guarantees consistent joint airtightness. The housing design is engineered to minimize aerodynamic resistance while maintaining a low overall unit height.

The unit housing is constructed from galvanized steel, resistant to corrosion and mechanical loads from building structures.

Design Features:

• Triple Bypass: The design allows for crossing over obstacles with three parallel duct lines simultaneously within a single unit.
• Recess Geometry: The 44 mm depth enables passage over objects without a significant increase in the total thickness of the ventilation layer.
• Plastic Connectors: Equipped with an integrated end seal to achieve standard joint airtightness without the use of silicone sealants or sealing tapes.
• Mechanical Fixation: The locking latch system on the connectors securely blocks the flexible ducts, preventing accidental disconnection under air pressure or during installation.
• Installation: Standard mounting lugs are provided on the housing for rigid fixation of the unit to load-bearing slabs.

Technical Specifications:

• Housing Material: Galvanized steel
• Connector Material: High-impact plastic
• Number of Ports: 3 inlets / 3 outlets
• Connection Diameter: 75 mm
• Bypass Recess Depth: 44 mm
• Overall Dimensions (LxWxH): 561 x 321 x 85 mm
• Compatibility: 75 mm round flexible ducts

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