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Tunnel inlets > Black Line Tunnel inlet BLT

Black Line Tunnel inlet BLT

Tunnel inlets

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Benefits of Black Line Tunnel inlet BLT

Optimized pull force

8% more air output

8% more air output

Common models

Type Installation dimensions Net surface Capacity Pull force
W H 10 Pa 20 Pa 30 Pa
BT Tunnel 01 1180 mm 355 mm 3100 cm2 4300 (m3/hr) 6200 (m3/hr) 7500 (m3/hr) 6 kg
BT Tunnel 02 1180 mm 710 mm 6200 cm2 8600 (m3/hr) 12400 (m3/hr) 15000 (m3/hr) 8 kg
BT Tunnel 03 1180 mm 1070 mm 6200 cm2 12900 (m3/hr) 18600 (m3/hr) 22500 (m3/hr) 11 kg
BT Tunnel 04 1180 mm 1430 mm 12400 cm2 15500 (m3/hr) 24800 (m3/hr) 30000 (m3/hr) 13 kg
BT Tunnel 05 1180 mm 1790 mm 15500 cm2 21500 (m3/hr) 31000 (m3/hr) 37500 (m3/hr) 16 kg
The Black line Tunnel inlet can be placed as a standalone air inlet with a flange around it. Or as a tunnel inlet simply placed on top of each other and connected.

Tunnel inlet with 8% more air output

BTL stands for Black Line Tunnel inlet, a tunnel valve made of PU foam. The BT series is a standard side valve with flanges all around. These are glued together and thus form a tunnel inlet. The valves can be very easily connected to each other and fine-tuned.

A special fine-tune knob ensures very easy mutual adjustment of the valves. The pulling force has also been optimized: a five-fold tunnel requires a force of 16 kg. And thanks to the aerodynamic rounded edges, we achieve 8% more air output with this valve.

The Black Line Tunnel inlet is supplied self-closing as standard. This has the advantage that the valves are always completely draught-proof when closed.