Forum Discussion
landyacht318
Jun 12, 2018Explorer
My thing about fans is they must have speed control, and they should also be powerful it high speed.
The FM181 is too quiet to consider powerful. The AP182 is certianly powerful but can draw an amp more and does not like battery charging voltages.
My AP182 failed, it is used as in intake fan near a large salty body of water and the circuit board had corroded. My FM181's circuit board got sprayed with DeOxit Shield s5 spray and has already outlasted the AP182. BOth these fans are White. i spray painted the casing and impellers black. reoving the impeller requires special pliers and E or C clips. I made some out of some needle nose HF pliers.
My FM181 uses the spiral flow concentrating faceplate from the failed AP182, which i hacksawed off as it is not easy to find a 180mm fan fingerguard.
There are also Some other large computer fans. Noctua makea a 200MM fan which moves 86.5 cfm for 0.09 amps and 18Db.
My intake fan shroud has 3 fans, the Fm181 and two Noctua IPPC Nff-12 indstrial PWM fans, capable of 3000 rpm on a Noctua speed controller. these are rated at 110 CFM, so 2 of them and the FM 181 without restriction, should push 370 CFM into my rig and all three on high draw 0.86 amps. There is restriction to this flow so than number is optomistic, but the Noctua industrial fans are very good, and draw 0.3 amps on max speed.
The Silverstone FM121 also moves 110CFM but has half the static pressure rating, and consumes 0.4 amps, but is also a very good dual ball bearing fan.
I can attach a carbon filter to my intake fan shroud so fans suck filtered air into the rig. It's restriction definitely cuts airflow a fair amount. I use the same material on my interior air circulation fan, a 92MM delta fan that is ridiculously powerful and which I control with a voltage bucker modified with an external finger twist 10k Ohm potentiometer. the fan pulls air through the filter sock on the back of the fan. The sock is about 6 inches long and it sticks to the velcro around the perimeter of the fan. It does an excellent job of collecting dust/sheepdog dander, and only when it gets really loaded does it compress at higher fan speeds.
Computer fans vary widely in air moved for noise made and amperage consumed. I have one 120MM fan that has a sleeve bearing, consumes 0.6 amps makes a Lot of noise, and moves less air than the Noctua industrial fan at 3K rpm that consumes half that amperage.
But a fantastik fan or Maxair fan can move some 800 CFM on high. Hard to equal that in a 14 inch square.
The FM181 is too quiet to consider powerful. The AP182 is certianly powerful but can draw an amp more and does not like battery charging voltages.
My AP182 failed, it is used as in intake fan near a large salty body of water and the circuit board had corroded. My FM181's circuit board got sprayed with DeOxit Shield s5 spray and has already outlasted the AP182. BOth these fans are White. i spray painted the casing and impellers black. reoving the impeller requires special pliers and E or C clips. I made some out of some needle nose HF pliers.
My FM181 uses the spiral flow concentrating faceplate from the failed AP182, which i hacksawed off as it is not easy to find a 180mm fan fingerguard.
There are also Some other large computer fans. Noctua makea a 200MM fan which moves 86.5 cfm for 0.09 amps and 18Db.
My intake fan shroud has 3 fans, the Fm181 and two Noctua IPPC Nff-12 indstrial PWM fans, capable of 3000 rpm on a Noctua speed controller. these are rated at 110 CFM, so 2 of them and the FM 181 without restriction, should push 370 CFM into my rig and all three on high draw 0.86 amps. There is restriction to this flow so than number is optomistic, but the Noctua industrial fans are very good, and draw 0.3 amps on max speed.
The Silverstone FM121 also moves 110CFM but has half the static pressure rating, and consumes 0.4 amps, but is also a very good dual ball bearing fan.
I can attach a carbon filter to my intake fan shroud so fans suck filtered air into the rig. It's restriction definitely cuts airflow a fair amount. I use the same material on my interior air circulation fan, a 92MM delta fan that is ridiculously powerful and which I control with a voltage bucker modified with an external finger twist 10k Ohm potentiometer. the fan pulls air through the filter sock on the back of the fan. The sock is about 6 inches long and it sticks to the velcro around the perimeter of the fan. It does an excellent job of collecting dust/sheepdog dander, and only when it gets really loaded does it compress at higher fan speeds.
Computer fans vary widely in air moved for noise made and amperage consumed. I have one 120MM fan that has a sleeve bearing, consumes 0.6 amps makes a Lot of noise, and moves less air than the Noctua industrial fan at 3K rpm that consumes half that amperage.
But a fantastik fan or Maxair fan can move some 800 CFM on high. Hard to equal that in a 14 inch square.
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