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Description
Backdraft dumper Ø250 mm
Anti-return flap for insertion into round ventilation ducts (pipes) with a diameter of ∅250 mm. The flap opens and closes automatically. It has a strong spring and can be installed horizontally or vertically. Suitable for retrofitting, as it is completely inside the ventilation duct. The flap housing is made of galvanized steel, the flap slats are made of aluminum, the axis and spring are made of stainless steel.
Features:
◦ Automatic opening-closing
◦ Horizontal or vertical installation
◦ prevents the entry of cockroaches and other pests
◦ prevents odors from escaping through the inlet/outlet pipe
Warning!
The direction of installation of the non-return valve depends on whether the pipe is inlet or outlet!
Origin: EU
Reccomended ventilation ducts..
Mark | Value | M.U: |
ØD | 249 | mm |
ØL | 165 | mm |
Maker | Vents |
Diameter | 249 mm |
Lenght | 165 mm |
Material | Galvanized steel |
Weight | 900 g |
SKU | GRO8886 |