Metallic non-return coupling

El non-return coupling metallic is usually placed in front of of the extractor or of intractor to avoid leaks when they are turned off.

We must bear in mind that it is necessary to check the position of the coupling, to verify that the opening is in favor of the air flow and not the other way around.

When the extractor stops working, the two tabs will close and thus the air will not be able to circulate in the opposite direction, avoiding the escape of the temperature of the indoor crop or the odor coming out.

This type of coupling is essential when we use any type of controller in the ventilation of our closet or room.

Thanks to them we will avoid a drastic drop in temperature in the crop and prevent unwanted odors from coming out.

To fix the non-return coupling to the extraction tubes you can use metal clamps, duct tape o American tape.

Available measurements of the metal non-return coupling:

• 100 millimetres.
• 125 millimetres.
• 150 millimetres.
• 200 millimetres.
• 250 millimetres.
• 315 millimetres.

You can get more information about this and more products on the official website of Vents.

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