Extractor Fan Non Return Valve 100mm / 4inch, 125mm and 150 Ducting Pipe

·         This is a powerful mini fan that comes with 100mm, 125mm and 150mm.

·         Non-return Valve for Extractor Fans which has backdraft Shutter.

·         Non-return valves ensure that the air flows in one direction only.

·         Simple operation works and silent unlike spring loaded vent valves is what you get with this exhaust fan.

·         This valve extractor fan made in EU

Product description

Non-return valve with folding slat (very light so very little resistance) that open when there is air displacement by a fan. They ensure that the air flows in one direction only, but at the same time do not adversely affect fan capacity in a significant way. This valve extractor fan can be installed in a spiro tube or plastic channel (valve is slightly smaller in diameter so it can be slid into the tube and then has to be fixed with glue/sealant or tape). Application: This non-return valve can be installed behind ventilators that cannot bridge much resistance, so the valve is suitable for various bathroom fans. This greenhouse vents comes with 100mm, 125mm and 150mm.

Specification

·         Size option available

·         Extractor Fan Non Return Valve

·         Backdraft Shutter Included