Ventilation chimneys AVK Exhaust Chimney AVK Single or double wall Complete out of HDPE Impact resistant UV-resistant Compact version (80% volume reduction) Different roof profiles available Suitable sectors Poultry Pigs Calves Other Options Chimney with rain cap Chimney with rain ring Chimney with drip tray Type Diameter (internal) Welded Single wall AVK 370 AVK 420 AVK 470 AVK 520 AVK 580 AVK 645 AVK 730 AVK 820 AVK 920 Available dimensions Diameter Chimney length 47 370 mm 420 mm 470 mm 520 mm 580 mm 645 mm 730 mm 820 mm 920 mm 3 mm 4 mm 4 mm 4 mm 4 mm 4 mm 5 mm 5 mm 5 mm Double wall 14 mm 15 mm 15 mm 15 mm 15 mm 15 mm 16 mm 16 mm 16 mm Single wall 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm Stiffening ring Butterfly valve (build-in or build-up) Material thickness Compact Double wall 16 mm 16 mm 16 mm 16 mm 16 mm 16 mm 16 mm 16 mm 16 mm Damper Inflow ring Light trap 370-920 mm ø370/ø420/ø470/ø520/ø580/ø645/ø730/ø820/ø920 mm (internal) 1000-1500 mm 1000/1200/1500 mm
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