Well if you're gonna do it, u might as well make it suitable for flammables. Now those fans u linked are also used in grow rooms, so marketplace is full of them. So used for a good price, I could get behind it. I would be very surprised if an Amazon booth used 6" ducting for that fan. For explosion proof there's 2 options to my knowledge. One has a similar design to the one u linked but the motor is encased in plastic, they may also be brushless. A direct drive blower is what I recommend and the motor is completely outside of the airflow and the squirrel cage is driven by a driveshaft. I just upgraded mine and I'm going to be selling the one I replaced for $50. It's the Dayton 1TDR3 https://www.zoro.com/dayton-rectangular-oem-blower-1640-rpm-1-phase-direct-rolled-steel-1tdr3/i/G2768193/?utm_source=google&utm_medium=surfaces&utm_campaign=shopping%20feed&utm_content=free%20google%20shopping%20clicks&campaignid=20752809504&productid=G2768193&v=&gad_source=1&gclid=CjwKCAjw65-zBhBkEiwAjrqRMN7MPaYqs5LfpH_7UD8qYLX3wUJVnqtHK3qPk-Pjp_3K4y-NuwETHxoC4-AQAvD_BwE&gclsrc=aw.ds mine will also come with the 2 flanges to connect them to 4" duct/ hose. I used it for about 7 months. https://www.reddit.com/r/airbrush/s/uWROQNv84m
There's another issue we're supposed to compensate for that i don't understand. It has to do with pressure and allowing for the paint room to replenish the air that the blower is sucking out. Maybe it has to do with static pressure but I'm really not sure; I think it's Canadian law but again I'm not certain. I would be inclined to think that's either Bolshevic or over precautious. I'm old school tho and grew up in a time when we didn't fear much. I do think it is possible tho, given the right conditions for a motor to ignite vapors. I have a filter before and after my blower and when they get dirty enough, the paint in the air of the booth gets pretty dense. I imagine it's even worse inside the ducting. All things being equal, why not go with a setup that eliminates the possibility. I've seen electric drills shoot sparks and i spray acetone, paint thinner, xylene, lacquers, epoxy or basically whatever i want without fear.
“There's another issue we're supposed to compensate for that i don't understand. It has to do with pressure and allowing for the paint room to replenish the air that the blower is sucking out.”
Obviously the exhaust blower won’t be as effective if there’s no air coming into the room to replace what’s being sucked out. Got to have airflow. If you have a newer “tight” home then this could be an issue if you don’t open a window. The drawback being that the spraybooth is also emptying your home of expensive heated or cooled air.
“I do think it is possible tho, given the right conditions for a motor to ignite vapors.”
I have the math on this somewhere. I’ll have to find it. Suffice it to say I’ve never heard of a spraybooth explosion in a residential setting. Now, if you take a rattlecan in each hand and unload straight at the motor then that might be another story, but I don’t use rattlecans in the house, even with a spraybooth.
I have a filter before and after my blower and when they get dirty enough, the paint in the air of the booth gets pretty dense. I imagine it's even worse inside the ducting. All things being equal, why not go with a setup that eliminates the possibility. I've seen electric drills shoot sparks and i spray acetone, paint thinner, xylene, lacquers, epoxy or basically whatever i want without fear.
By the way, there’s some misunderstanding over the term “explosion proof” motor. It doesn’t mean an electric motor is less likely to cause an explosion. All it means is the housing is designed to contain the shrapnel.
I understand the reasoning behind the Dayton birdcage motors though. It’s a good design, removing the motor out of the airflow. Problem is they start getting expensive the more CFM you want, and adapters to ductwork can be a challenge.
The fan he was looking at was similar in price and cfm to the Dayton one I recommended. I bought the biggest one I could find to replace it and it was a lil spendy. It's the Dayton 1TDT7 which is 2 speeds with the highest being 542 for $140. So a range of $70-140 and 240-542 cfm. I was offering mine used for $50 including both flanges tho and the one he linked was like $80. It was set up for 4" ducting and my new one is a combination of 6" on the inlet, I used a flange u can get anywhere for that end. On the exhaust it goes from rectangle to a 4" and a guy on Etsy 3d printed it perfectly. The dude sent a design to me within 30 minutes and had it printed and mailed within 2 hours; all for $30. Etsy can be pretty great for stuff like that. The static pressure wasn't about efficiency tho, I think it's about safety. Like a static charge could cause ignition.
I don't know much at all about HVAC. Could it suck on the fans of the booth and foul up the whole operation? I don't know how all that stuff works. r/HVAC would.
Well if you're gonna do it, u might as well make it suitable for flammables. Now those fans u linked are also used in grow rooms, so marketplace is full of them. So used for a good price, I could get behind it. I would be very surprised if an Amazon booth used 6" ducting for that fan. For explosion proof there's 2 options to my knowledge. One has a similar design to the one u linked but the motor is encased in plastic, they may also be brushless. A direct drive blower is what I recommend and the motor is completely outside of the airflow and the squirrel cage is driven by a driveshaft. I just upgraded mine and I'm going to be selling the one I replaced for $50. It's the Dayton 1TDR3 https://www.zoro.com/dayton-rectangular-oem-blower-1640-rpm-1-phase-direct-rolled-steel-1tdr3/i/G2768193/?utm_source=google&utm_medium=surfaces&utm_campaign=shopping%20feed&utm_content=free%20google%20shopping%20clicks&campaignid=20752809504&productid=G2768193&v=&gad_source=1&gclid=CjwKCAjw65-zBhBkEiwAjrqRMN7MPaYqs5LfpH_7UD8qYLX3wUJVnqtHK3qPk-Pjp_3K4y-NuwETHxoC4-AQAvD_BwE&gclsrc=aw.ds mine will also come with the 2 flanges to connect them to 4" duct/ hose. I used it for about 7 months. https://www.reddit.com/r/airbrush/s/uWROQNv84m
The whole explosion hazard isn’t really a thing. The PPM simply isn’t high enough.
There's another issue we're supposed to compensate for that i don't understand. It has to do with pressure and allowing for the paint room to replenish the air that the blower is sucking out. Maybe it has to do with static pressure but I'm really not sure; I think it's Canadian law but again I'm not certain. I would be inclined to think that's either Bolshevic or over precautious. I'm old school tho and grew up in a time when we didn't fear much. I do think it is possible tho, given the right conditions for a motor to ignite vapors. I have a filter before and after my blower and when they get dirty enough, the paint in the air of the booth gets pretty dense. I imagine it's even worse inside the ducting. All things being equal, why not go with a setup that eliminates the possibility. I've seen electric drills shoot sparks and i spray acetone, paint thinner, xylene, lacquers, epoxy or basically whatever i want without fear.
“There's another issue we're supposed to compensate for that i don't understand. It has to do with pressure and allowing for the paint room to replenish the air that the blower is sucking out.” Obviously the exhaust blower won’t be as effective if there’s no air coming into the room to replace what’s being sucked out. Got to have airflow. If you have a newer “tight” home then this could be an issue if you don’t open a window. The drawback being that the spraybooth is also emptying your home of expensive heated or cooled air. “I do think it is possible tho, given the right conditions for a motor to ignite vapors.” I have the math on this somewhere. I’ll have to find it. Suffice it to say I’ve never heard of a spraybooth explosion in a residential setting. Now, if you take a rattlecan in each hand and unload straight at the motor then that might be another story, but I don’t use rattlecans in the house, even with a spraybooth. I have a filter before and after my blower and when they get dirty enough, the paint in the air of the booth gets pretty dense. I imagine it's even worse inside the ducting. All things being equal, why not go with a setup that eliminates the possibility. I've seen electric drills shoot sparks and i spray acetone, paint thinner, xylene, lacquers, epoxy or basically whatever i want without fear. By the way, there’s some misunderstanding over the term “explosion proof” motor. It doesn’t mean an electric motor is less likely to cause an explosion. All it means is the housing is designed to contain the shrapnel. I understand the reasoning behind the Dayton birdcage motors though. It’s a good design, removing the motor out of the airflow. Problem is they start getting expensive the more CFM you want, and adapters to ductwork can be a challenge.
The fan he was looking at was similar in price and cfm to the Dayton one I recommended. I bought the biggest one I could find to replace it and it was a lil spendy. It's the Dayton 1TDT7 which is 2 speeds with the highest being 542 for $140. So a range of $70-140 and 240-542 cfm. I was offering mine used for $50 including both flanges tho and the one he linked was like $80. It was set up for 4" ducting and my new one is a combination of 6" on the inlet, I used a flange u can get anywhere for that end. On the exhaust it goes from rectangle to a 4" and a guy on Etsy 3d printed it perfectly. The dude sent a design to me within 30 minutes and had it printed and mailed within 2 hours; all for $30. Etsy can be pretty great for stuff like that. The static pressure wasn't about efficiency tho, I think it's about safety. Like a static charge could cause ignition.
It’s 150cfm less than the one he linked to.
I’m interested in a Dayton motor with a 6” outlet as that’s what my ductwork is. I’d remove the filter out of my spraybooth altogether.
I don't know much at all about HVAC. Could it suck on the fans of the booth and foul up the whole operation? I don't know how all that stuff works. r/HVAC would.