Flanged Back Pressure Flap Valve, FLN

Flanged non return air valve to prevent air circulation. Ø160 - 710 mm, galvanised steel.

Nordfab FLN Flanged Back Pressure Valve comes with pre-drilled, loose FLN flanges at each end for ease of alignment and connection to other ducting components during installation. Nordfab FLN Flanged Back Pressure Valve is designed to prevent air circulating. Its primary function is to prevent the reverse flow of air within ductwork system. These valves are typically installed in ducts where airflow needs to be unidirectional, such as exhause vents or ventilation systems. Available in galvanised steel construction, ranging from 160 mm to 710 mm in diameter.

Nordfab flanged ductwork is typically used for larger diameters and used in high-pressure industrial ventilation systems where airtight connections are essential.

ø A (mm) Material T mm L mm Weight(kg) Item No.
160 Galv 6 8210002137‍
200 Galv 8 8210002138‍
250 Galv 11 8210002139‍
315 Galv 17 8210002140‍
350 Galv 18 8210002141‍
400 Galv 23 8210002142‍
450 Galv 29 8210002143‍
500 Galv 33 8210002144‍
560 Galv 41 8210002145‍
630 Galv 51 8210002146‍
710 Galv 61 8210002147‍

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