GM Triple Bypass Element with 3x75 Rubber Connectors (Type A)

The GM triple bypass element (air tunnel or crossover) is designed for the simultaneous cross-intersection of three parallel ventilation runs with other utilities. This technical solution allows a main line of three flexible ducts to "step over" an obstacle without significantly increasing the height of the installation space.

The "Type A" modification for three-channel systems has a bypass channel depth of 44 mm. This housing geometry provides an optimal balance between compactness and aerodynamics: the element allows for bypassing obstacles up to 40 mm high while maintaining a sufficient internal cross-section for stable airflow along all three branches. The use of rubber connectors in the GM series guarantees reliable airtightness and effective damping of structural noise.

The housing is made of galvanized steel, featuring high mechanical strength and resistance to corrosion.

Design Features:

• Group Crossing: Allows for a compact transition over an obstacle for three parallel lines (runs) of flexible ducts simultaneously.
• Aerodynamic Efficiency: The channel depth of 44 mm is selected to minimize flow resistance during the simultaneous operation of three ducts.
• Airtightness and Comfort: Rubber connectors provide a snug fit for the ducts without the use of tape or sealants, and also prevent the transmission of vibrations to the housing.
• Installation: The housing features four mounting brackets for rigid attachment to load-bearing structures.

Technical Specifications:

• Housing Material: Galvanized steel
• Connector Material: Rubber
• Number of Outlets: 3 inlets / 3 outlets (triple bypass)
• Connection Diameter: 75 mm
• Bypass Depth: 44 mm
• Overall Dimensions (Length x Width x Height): 561 x 321 x 85 mm
• Compatibility: Standard 75 mm flexible circular duct systems and obstacles up to 40 mm high

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