Venting Dust Collector Outside

The blower is powerful enough that it s going to pull replacement air from somewhere.

Venting dust collector outside.

Sometimes though an indoor dust collector has no vent to the outside. Flameless venting can consist of a flame arrestor element vent panel and flanged housing. What s important however is that venting outside directly will put the fine particule matter right next to where you are breathing. You will either suck it in again through the air inlet or have it ninja through an open window or breathe it in when you go outside.

If you vent to the outside you will get the best air quality possible. If you live somewhere where you enjoy having the room heated or cooled moving the bags outside will defeat your heater or cooler. This method is designed to combine the techniques of explosion venting and flame arresting. In this case you have an option but not a cheap one.

But you will have to plan on how that air gets replaced. Explosion vents are commonly used on baghouses and cartridge dust collectors. The dust collector takes air from in the room and blows it into the bags. Flameless explosion vents as the nfpa defines them act as flame arrestors completely stopping flames.

Nfpa 68 allows this as long as the ductwork is strong enough to withstand the potential damage. If it can t pull replacement air you create a backflow restriction on the blower and risk reducing the overall air flow of the unit. The only proviso when venting outside is make sure the vented air is not near any open doors windows etc that are open to replace the air that is being extracted otherwise the dust can be returned into the workshop. They also provide particulate retention which means that no particles or flaming.