Make a High Volume Manual Vacuum Pump
Intro: Make a High Volume Manual Vacuum Pump
This video will show how to make a vacuum pump, a device that can be used to suck the air out of sealed environments. This is the same pump I use to operate my vacuum cannon seen here: http://youtu.be/CVL99yIB3NQ
A clear vacuum chamber such as the one seen in the video can be obtained by purchasing a bell jar and vacuum plate, easily available online. I highly advise that only vessels made for handling vacuum pressure such as bell jars be used with this or any vacuum pump. If a vessel were to fail while under vacuum the implosion can be powerful enough to cause injury.
This pump is capable of generating pressures of 29 in/Hg.
Vacuum Pump Parts:
16" of 2" PVC Pipe
20" of 1 1/4" PVC Pipe
2" End Cap
1/4"x1/8" Brass Hose Fitting
3' of 1/4" Vacuum Line
1 1/4" End Cap (x2)
1 1/4" Diameter O Ring
2" Coupling
2" x 1 1/2" Reducer
3" x 2" Adapter
3" x 4" Closet Flange
4" of 3" PVC Pipe
10" of 3/4" Dowel
Self Tapping Screws
Bearing Grease
A clear vacuum chamber such as the one seen in the video can be obtained by purchasing a bell jar and vacuum plate, easily available online. I highly advise that only vessels made for handling vacuum pressure such as bell jars be used with this or any vacuum pump. If a vessel were to fail while under vacuum the implosion can be powerful enough to cause injury.
This pump is capable of generating pressures of 29 in/Hg.
Vacuum Pump Parts:
16" of 2" PVC Pipe
20" of 1 1/4" PVC Pipe
2" End Cap
1/4"x1/8" Brass Hose Fitting
3' of 1/4" Vacuum Line
1 1/4" End Cap (x2)
1 1/4" Diameter O Ring
2" Coupling
2" x 1 1/2" Reducer
3" x 2" Adapter
3" x 4" Closet Flange
4" of 3" PVC Pipe
10" of 3/4" Dowel
Self Tapping Screws
Bearing Grease
15 Comments
furrysalamander 10 years ago
Okay, so I'm absolutely confused as to what's going on with your vacuum gauge you've got there. From what I've managed to gather, higher values are actually a higher pressure when speaking about this, unless it's indicating vacuum relative to atmospheric pressure. Which I suppose might make sense... but the fact that it goes to 30 makes me question whether or not this is possible... Ugghhh, I don't know...
NightHawkInLight 10 years ago
yed777a 7 years ago
furrysalamander 10 years ago
JaredL16 6 years ago
Sweet! A stronger vacuum can be achieved if the pump is made from 1", not 2" PVC. Awesome, though.
MohamedS51 8 years ago
abennett6 9 years ago
I'm curious about whether having the second valve on the curved side of the pipe made much of a difference for you in terms of effectiveness. Would it be easier to move the valve in the end cap over a bit to make room for the other valve there as well, instead of on the side?
Some students in my physics class will be making their own vacuum pump and cannon; we'll be sure to share our results once they've finished. Thanks for the instructable!
furrysalamander 10 years ago
Okay, I suppose my real question is, can this boil water at room temp? I'm looking into freeze drying for some chemistry experiments.
DanTDM 10 years ago
Awesome, but how much did it cost?
EricHi 10 years ago
im3733 10 years ago
NightHawkInLight 10 years ago
jjdebenedictis 10 years ago
NightHawkInLight 10 years ago
sau2 10 years ago