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Author Topic: How I got 600 psi in 40 seconds!  (Read 603 times)

Offline BoyntonStu

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How I got 600 psi in 40 seconds!
« on: March 30, 2010, 01:36:03 PM »
Taking the advice of our Leader and his YouTube video I decided to pressurize the input to my compressor.

 I soldered a 1/4" male quick connect x 3/8 NPT Female to my 8,000 BTU a/c compressor input line.

The input line was the perfect size copper to directly thread the quick connect by wrenching it on and cutting its own threads.

I happen to have a 2 cylinder wobble pump designed for hospital use that can put out 150 psi..

I connected the wobble pump to the a/c pump and simultaneously turned them on.

Working together my 3/4" L x 17" air cannon chamber got to 600 psi in 40 seconds.  Wow!

The wobble pump gauge read 25 psi while this was happening.  (no tank).

Prior to this, the a/c compressor would get to 550 psi and struggle or instantaneously cause the gauge to jump to 600 psi.???

Now, it smoothly and quickly reaches 600 psi.

I need another gauge to read higher pressures.

Anyone know the Type 3/4" L  copper burst pressure?

I can determine what the limit is with the present setup an if necessary add more input pressure/volume.

Very exciting!

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Offline Forum Admin

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Re: How I got 600 psi in 40 seconds!
« Reply #1 on: March 30, 2010, 07:41:15 PM »
Great results, that was a good application for that wobble pump. I probably would keep the pressure well below 2900 psi which is roughly the burst pressure of 3/4" type L annealed pipe. I probably wouldnt go much past 1000 psi myself.
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Offline BoyntonStu

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Re: How I got 600 psi in 40 seconds!
« Reply #2 on: March 31, 2010, 09:33:07 AM »
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Offline Pellethuntr

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Re: How I got 600 psi in 40 seconds!
« Reply #3 on: March 31, 2010, 12:09:51 PM »
that's really cool Stu nice work...what is the max psi you think you can get out of that???
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Offline BoyntonStu

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Re: How I got 600 psi in 40 seconds!
« Reply #4 on: March 31, 2010, 04:07:49 PM »
Quote from: Pellethuntr on March 31, 2010, 12:09:51 PM
that's really cool Stu nice work...what is the max psi you think you can get out of that???

I ordered a 3,000 psi gauge and we will find out.

The a/c compressor seems to be working much easier and coller with the assist.

My goal with copper is 1,000 psi.
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