Testing two high powered vacuum motors in a series configuration and then in a parallel configuration. Also testing a new prototype configuration using both the series and parallel configurations at the same time with three vacuum motors and the air flow regulator.
In the video above. I have two high powered 3 stage vacuum motors that are rated at 144" of water lift and 115 CFM, each. I also have a booster system that has the same vacuum motor as the two in the portable extractor.
I have made a home made CFM gauge that will float a ball as the exhaust blows in the hose attached to the tube.
In the video I start off with using two separate vacuum motors in open flow, no hose or tools attached. I use the exhaust from each vacuum motor, one at a time to calibrate the CFM gauge.
My first test is using two vacuum motors in parallel, using 25 foot of two inch hose with 4 carpet cleaning tools. The portable system is rated for 144 inch of lift and 230 CFM.
The CFM gauge will only measure 120 CFM at the very top. So we can not see the full 230 CFM's on the CFM gauge that the parallel system is producing.
If you notice when testing, It seems like the parallel set up will lose 60% to 80% of the CFM when tools are in the normal cleaning process. The next test is two vacuum motors set up in series. The series set up is rated at 215 inches of water lift and 115 CFM.
You may notice when testing the series set up, we can lose about 30% to 60% of the CFM's from the two vacuum motors set up in a series set up.
The last test is a parallel set up combined with the series set up, using the air flow regulator and three vacuum motors. I have two vacuum motors in parallel with both vacuum motors blowing their exhaust in to the one vacuum motor's intake.
The regulator has a air flow relief valve and a check valve that is to limit the air flow that blows in to the back end vacuum motor.
Using all three vacuum motors and the regulator. The system is rated at 215 inches of water lift and 230 CFM at the machine. Actual testing using proper testing interments may be higher or lower as the system has never been tested at the machine's intake.
When testing the 2 in 1 system, the test shows the ball in the CFM gauge has a lower level then the 115 CFM starting point. The ball being lower shows me the check valve spring is too strong and limiting the CFM's in to the gauge by about 16 CFM. I had no other check valve to replace the stronger check valve.
The Air Flow Regulator is a prototype. The check valve is too strong as you can see the lower air flow on the CFM gauge when the check valve is connected to the booster in open flow.
I hope you found the testing interesting, as for over 5 years on carpet cleaning forums, I have not seen one test that shows CFM measured from the exhaust.
In the video above. I have two high powered 3 stage vacuum motors that are rated at 144" of water lift and 115 CFM, each. I also have a booster system that has the same vacuum motor as the two in the portable extractor.
I have made a home made CFM gauge that will float a ball as the exhaust blows in the hose attached to the tube.
In the video I start off with using two separate vacuum motors in open flow, no hose or tools attached. I use the exhaust from each vacuum motor, one at a time to calibrate the CFM gauge.
My first test is using two vacuum motors in parallel, using 25 foot of two inch hose with 4 carpet cleaning tools. The portable system is rated for 144 inch of lift and 230 CFM.
The CFM gauge will only measure 120 CFM at the very top. So we can not see the full 230 CFM's on the CFM gauge that the parallel system is producing.
If you notice when testing, It seems like the parallel set up will lose 60% to 80% of the CFM when tools are in the normal cleaning process. The next test is two vacuum motors set up in series. The series set up is rated at 215 inches of water lift and 115 CFM.
You may notice when testing the series set up, we can lose about 30% to 60% of the CFM's from the two vacuum motors set up in a series set up.
The last test is a parallel set up combined with the series set up, using the air flow regulator and three vacuum motors. I have two vacuum motors in parallel with both vacuum motors blowing their exhaust in to the one vacuum motor's intake.
The regulator has a air flow relief valve and a check valve that is to limit the air flow that blows in to the back end vacuum motor.
Using all three vacuum motors and the regulator. The system is rated at 215 inches of water lift and 230 CFM at the machine. Actual testing using proper testing interments may be higher or lower as the system has never been tested at the machine's intake.
When testing the 2 in 1 system, the test shows the ball in the CFM gauge has a lower level then the 115 CFM starting point. The ball being lower shows me the check valve spring is too strong and limiting the CFM's in to the gauge by about 16 CFM. I had no other check valve to replace the stronger check valve.
The Air Flow Regulator is a prototype. The check valve is too strong as you can see the lower air flow on the CFM gauge when the check valve is connected to the booster in open flow.
I hope you found the testing interesting, as for over 5 years on carpet cleaning forums, I have not seen one test that shows CFM measured from the exhaust.
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