Best Practices Vacuum With Jim Bergmann Full Version

[@robmckennie4203]

i was a little bit surprised when he said that you get the transition to molecular flow at a different pressure depending on the system you're attached to, because i always thought the flow regime was purely dependent on pressure. i'm not really sure if that's 100% correct, but what it made me realize is that you're measuring the pressure at one end of the hose, but the transition from viscous to molecular flow is occuring at the other end, at the pump end, so what you're seeing is the pressure delta from one end of the hose to the other, which is of course part of what this video is all about. i love learning new stuff, these videos are really good

[@FieldpieceProducts]

Thank you for your comment! Awesome input and thank you for watching!

[@clintbambrick5080]

This is very good. Wish I knew this information ages ago.

[@Duckarm]

very nice job Jim!

[@jaymz0074]

Amazing video. Thanks Jim for the information.

[@keithedester474]

270 is pretty typical of what I usually get. Low enough isn't it?

[@anonymouscontent2686]

Jim bergman can be a spokes person, great video thanku

[@lubime10]

Excellent !!!

[@tptm100]

If you have just one large diameter hose will that make a difference?

[@vitaliyraletniy5743]

I still use my $50 pump from Amazon. And I'm so happy with it. $50 vs $500. Yes i pump longer but i charge by the hour, so what gives

[@Papasquatch73]

In your case it may be beneficial but not me. I need to get in an out. $50 seems like a toy to me

[@NorCal-refrigeration]

Jim can you get Fieldpiece to intergrade with measure-quick for the probes?

[@TimothyNaugher]

Nor-Cal Refrigeration & H.V.A.C The first fieldpiece/measurequick colab video he posted on Facebook I asked the same thing. He didn't say it was 100%, but said they had a promising partnership and the chances of the probes working with MQ are very high.

[@hvacshinobi8047]

Nor-Cal Refrigeration & H.V.A.C 👍

[@iler1998]

I sure hope so! I hope by that point FP gets the connectivity issues with Android fix! This is driving me nuts.

[@NorCal-refrigeration]

Adam R me too and I’m on iPhone.

[@w5cdt]

Good presentation. But my Fieldpiece vacuum gauge won’t hold a vacuum right at the pump when the isolation valve is closed. Any ideas?

[@Balticblue93]

I had to replace one o-ring seal on my hose and my vacuum held.

[@frankvaquerajr7837]

Sorry Jim Disappointed in the fieldpiece V55 1.5 years and its failed .Crap warranty..And i love TruTech.

[@graywolf2694]

I do transportation refrigeration unfortunately almost none of this is practical in that application, good video tho

[@nigelmuggridge9769]

Is there any company you havent fronted Jim.?

[@gtownhvac1640]

I have jellow jacket bullet that pump cost like $400 i think but is piece trash....i have inficon for $150... work more better....now I'm make my order on fieldpiece

[@TerryRGraham]

Yellow Jacket clicked the thumbs down button 3 times.

[@mattalexander8919]

I just use my $99 Dyson to evacuate.....never had any issues yet. . .

[@luc-alaindehaes3512]

you may not vacuum in a very short time you must vacuum slowly !!!! reason when you vacuum quick under 0.68mbar the possible water not vapor will frees and gets to solid ice . Big mistake !!! Best you slowly vacuum the system and brake the vacuum by N two times to get the pressure up and give some time to boil out that water that gets to vapur . Vacuum below the 6C° in the system is not recommend because of the boiling point at -1 bar relative ....