GM Double Bypass Element with 2x75 Rubber Connectors (Type A)

The GM double bypass element (air tunnel or crossover) is designed for cross-intersecting two parallel ventilation runs with other utilities. The device allows two lines of flexible ducts to simultaneously "step over" an obstacle while maintaining the minimum height of the entire system.

The "Type A" modification in the two-channel design is engineered to maintain high throughput: the bypass channel depth is 44 mm. This solution effectively bypasses obstacles up to 40 mm high while providing a sufficient internal cross-section for unobstructed airflow along both branches simultaneously.

The use of rubber connectors in the GM series guarantees connection airtightness and helps reduce structural noise. The product housing is made of galvanized steel, which is resistant to corrosion and mechanical stress.

Design Features:

• Throughput: The enlarged internal cross-section of the housing is designed for the simultaneous operation of two 75 mm flexible ducts without a loss of performance.
• Bypass Geometry: The channel depth of 44 mm is optimal for bypassing obstacles (pipes, cable trays, profiles) up to 40 mm high.
• Duct Connection: Rubber connectors provide a snug fit and reliable airtightness without the use of sealants. The elastic material dampens vibrations, increasing acoustic comfort.
• Installation: Mounting brackets are provided at the corners of the housing for convenient attachment to load-bearing structures.

Technical Specifications:

• Housing Material: Galvanized steel
• Connector Material: Rubber
• Number of Outlets: 2 inlets / 2 outlets (double bypass)
• Connection Diameter: 75 mm
• Bypass Depth: 44 mm
• Overall Dimensions (Length x Width x Height): 461 x 221 x 85 mm
• Compatibility: Standard 75 mm flexible circular duct systems and obstacles up to 40 mm high

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