Jet Flow Tool

Tinbasher

Tinbasher

Well-known member
A few of us got together from our Model A Club to test jets on a flow tool one of the members had. Every jet we tried was 1/2 of the flow it should be. Does anyone have a good article on making, setting up and using the "Jet Flow Tool"

Thanks Tinbasher
 
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Does it matter what the inner diameter of the 36" long tubing is? nobody seems to say what they've used. They just show a picture of the finished product.
 
bobbader said:
Does it matter what the inner diameter of the 36" long tubing is? nobody seems to say what they've used. They just show a picture of the finished product.
Click to expand...

not really, needs to be enough for the test. Your measuring the output volume in a certain timeframe
 
The pressure at the bottom of the column doesn’t change with diameter. 3/4 pvc is easy to work with.
I am amazed at how much jets can varry from under to over flow values.
1/4” Surgical tubing works well to insert the jets into at the bottom of your apparatus.
I use a 100ml graduated cylinder to measure with.
A micro torch and paste flux to solder the tips is my preferred method.
Of the various techniques shown in the articles I read I use a hand held micro drill holder. Planning on making a block to thread the jets into to hold them in a vice.....start undersized
Dremel tools work well to chamfer the new orfice turning slow w/a cordless drill.
 
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Wow,Thanks Folks. There's alot of good info. So we go back to the drawing board. The only thing that's different with our tool is the top of the tube has a elbow on it that hooks up to the run off tube. Maybe this is effecting the pressure?

JP
 
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Tinbasher said:
Wow,Thanks Folks. There's alot of good info. So we go back to the drawing board. The only thing that's different with our tool is the top of the tube has a elbow on it that hooks up to the run off tube. Maybe this is effecting the pressure?

JP
Click to expand...

I drilled a hole in the elbow at the top for a vent so that the water pressure did not affect the column flow pressure.

Tom Endy
 
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