A spray video showing power supply, pump, pump controller + input signal/source, checkvalve and NOZZLE

please

 

Abner,

I was actually reading your post at SRT forum and I captured something that called my attention:

Setting on the verycool controller: both min/max pressure fully CCW, only the tune was changed during data collection.

Correct me if I am wrong but wouldn't you agree that performing this test is basicaly a vast task since the flow itself is mandated by multiple other factors:

- dials set up
- nozzle sizes
- line diameters(aquamist uses nylon while SMC and other uses stain steel braided lines)
- Sensitivity of the controller(only applies if a variable controller is used)
- shape of nozzle
- Voltage input and output at the pump(as you know voltage drop affects pump speed)

These are just a few that I can think of. Basicaly what I am saying is that it would be hard as hell to duplicate exact conditions(as described above) in order to be accurate.

A simple example, a friend of mine was racing me on a SRT-4 two weks ago on a single setup boost switch trigger. This means that his setup is a steady and permanent set up, the pump only receives a command of open or close=activate-disactivate thus the flow is unvariable.(Member is on this forum: STG3SRT-4

Back to you.

My .2c

Carlos

 

I honestly think that the route to go would be the final flow/time regardless of what pump, what voltage,what nozzle's size,what controller,what dial set up,what diameter of lines,what nozzle's pattern.

I am incline to believe that each application has its pros and lows. One more thing to throw Abner, remember the Physics, the water and electricity follows the path of less resistance, in this case the length of the lines would be another parameter to consider.

Just remember, an A/C compressor could drag/drop easily a 1.5volts of the total voltage output thus bringing your pump flow to about 10% lower of its eficiency

Are you ready to play this game? A second set of eyes always help.

Carlos

 

Carlos, i read and re-read 5 times...and i'm

 

i'm again

 

so abner ur basically saying you dont believ in a progressove injection system

 

he thinks his way is the only way..... aquamist is just another kit.... big deal...

 

Hi Al, i log flow sensor voltage and there is miniscule to no pressure ripples - this is due to the by-pass design of the custom spec'd HFS aquamist/shurflo pump. The 3 internal pressure regulating valves within the pump head does an excellent job at regulating even line pressure.

iirc...Richard has a video of a progressive pump speed system showing mad pressure pulses seen in the dds3 gauge, the LED bars was all over the place - that system uses a on-demand switch shurflo pump

 

basically yes...till i "measure" one that works

 

4WS: i'm entitled to my opinion, so do you

 

Evo is just another car - big deal.

Corrola, Taurus, Kea - they are all just cars. Dont try and figure out which one is the best designed and works the best, just buy "a car"

What ever

 

=-)

Everyone knows the aquamist is better than anything else out on the market. The question is does everyone really need all the features it offers?

Unfortunetly i missed out on the group buy for $500 which was a great price, i can't imagine paying 600-700 for stuff i just dont need


Cheers!

 

just a reminder - the topic of the thread is "Progressive pump speed injection system - Do they work?"

 

Abner,

I have found the link of the video you were mentioning.

 

Richard, thats it! Thx
It shows very clearly the flactuations in pressure/flow in a "on-demand" type shurflo pump.

Here is a video of my dds3 showing the absence of the pressure/flow pulses from the custom HFS aquamist/shurflo by-pass pump
http://media.putfile.com/dds3