12 CFM Vacuum Pump vs 2 CFM Vacuum Pump

[@horsth9566]

This clears up a lot of questions in my mind. Absolutely, a great, convincing demo. Thank you!

[@lee-johnson]

I just got the three hose set and I love them. Just waiting on my BluVac-Pro gauge. I've been using the LTE that doesn't have bluetooth from several yrs ago. This was a great demo. Thanks Jim

[@wayneschneyer8699]

Hi Jim, Very important, very valuable and accurate information. Thank you. One point also is if your using the larger pump, and if that system has a high contamination your risk freezing the water vapor and then your pulling against an ice dam, not the system I demonstrate this with a bell jar hooked to too large a pump. At first you see the water turning to vapor, then in about a minute you see the clear cup of water flash to a solid block of ice. Science Smaller pump bigger hoses = success.

[@Sam-lh7uh]

I'm new to hvac, and this is very interesting to me. Would it be possible for you to make a video of this?

[@1414141x]

I'm just learning about vacuum pumps. This was very helpful as I now know how important hose size is ! Excellent. Now I have to get an understanding of vacumm measuring....

[@780brando]

great demo! I was hoping you would hook the 12 cfm pump up to the tru blue hoses and you did, damn it was fast!

[@rudyleatherman2208]

Nice job Jim! Really enjoyed going through this and getting my very own 2 cfm battery powered pump! Will be running it through its paces next week. With the hoses, micron gauge and MeasureQuick app, its an amazing combination! Keep up the great work!

[@alexsteph143]

i got the navac 2cfm and 4cfm battery pump and two sets of single xl trublu hose kit... im literally in love with both pumps and hoses.. i got a system under 200 microns in under 3 minuteds with the 4cfm

[@TonyWadkins]

Mind Blown ! Love your videos ! Every tech should subscribe. Your expertise and presentation skills are on par with the best.

[@ezcreations777]

This was super informative, loving my vacuum adventures so much to learn, what a great way to expand my understanding of the world

[@mikar3601]

Great video! I wonder what the difference would be between running the 2CFM pump with TruBlu hoses versus running it with two industry standard 3/8" or 1/2" vacuum rated hoses. The cost of a 2 host TruBlu setup is a staggering $550 USD whereas you can buy two 3/8" or even 1/2" vacuum-rated hoses for less than $150 for both and still benefit from a larger diameter, high flow setup without paying the several hundred dollar price difference for TruBlu.

[@measureQuick]

You are looking at a three hose kit. For residential you just need this. You can simply pull from the suction side of the system and put the vacuum gauge pin the liquid line. It is at least 16x faster and 4x faster then 1/2” hoses. www.trutechtools.com/Accutools-A10757-1-TruBlu-Starter-Evacuation-Kit

[@KinetikES]

Excellent video. Really shows the difference and that it's not only about pulling the cores, but the hoses too. Also shows that a 2cfm pump can be useful. It's way cheaper, even if you buy two, than a single larger, expensive pump (and you can have redundancy and flexibility).

[@martydennis]

Great demonstration Jim! Thank you!

[@justinwells8265]

This proves that the hoses are more important than the pump

[@MrChipBryant]

Thank you for your time.

[@mauroquero5002]

hola Jim, lo felicito!, muy buen trabajo lo que hace y muy explicativo!, como me hubiera gustado asistir a sus cursos!, excelente todo lo que hace!, usted es un apasionado!, saludos desde Argentina

[@mrcrux213]

The race to the vacuum! Cool

[@kfouts2]

Jim: I am looking into getting a freeze dryer. They recommend a 7 CFM pump. After watching this it appears to me that I would be ahead by getting a smaller pump with True Blue hoses. Thanks!

[@measureQuick]

For freeze drying I would recommend both. You need a large enough volume of oil to handle the moisture and a good ballast to dry the oil back out. Smaller pumps typically mean less oil. This a great pump for the money. DC motor, quite, and has a really low amp draw. www.trutechtools.com/NAVAC-NP12DM-12CFM-Vacuum-Pump

[@scottk0623]

Unbelievable wow, thanks Jim.

[@NorCal-refrigeration]

I have to get the blue vac pro. Great demo. 👍👍⚡️

[@coldfinger459sub0]

Nor-Cal Refrigeration & H.V.A.C ordered mind the day of the release of this video. Before I had the simple BluVac that still was expensive but it got stolen, time to replace with the pro.

[@Honestandtruth007]

So, Bottom line 1/2" Hose work faster with 5-10 CFM pumps, 1/2 hp Or 3/4 hp

[@rogerf3622]

Great video! Learned a lot.

[@jonathanbakchellian1987]

Very very informative video. Great job explaining! 👍🏼

[@juicepark8785]

Awesome man you are a great teacher

[@sirius6beta]

Very much appreciated - thank you.

[@Automotive_Solutions]

Great demonstration. Thankyou 👍

[@LaughLiveLove563]

You’re doin Gods work here bubba

[@afbigfish1]

Any videos comparing the speed difference between a single and dual trublu hose setup?

[@Rojaktube]

I am wondering that even with the bigger diameter hoses, aren’t the connectors at the pump inlet still the bottle neck?

[@measureQuick]

Rojaktube No they’re not, it has to do with diameter and length. You can go with small diameter’s if the length is very short or larger diameter’s if the length is very long. Vacuum is a little different than pressure in his characteristics. This is what we call conductance speed of a hose

[@ramirezarmando27]

Hello Greetings from Chihuahua Mexico. Question... Would you tell me please... How do you think about Makita vacuum pump 18v ? and Have you ever used it or test it before? Thank very much. I like your videos

[@alexanderdaniels9039]

Yes I bought the Makita 18v vacuum pump and I like it ALOT. Very light and powerful.

[@DJV94022]

Today oct 24.24 On 1st start up 5 ton 40ft lineset lennox split system 2cfm hercules (harborfreight) with the XL blue kit it pulled it down 4xx microns in 5 min

[@measureQuick]

The hoses are the magic for fast deep evacuations. Make sure that you are also doing a decay test to assure that it holds below 500, ideally below 200 to make sure it is dry and tight.

[@g.martinez2871]

Very cool! Great job Jim as always! 👍

[@Hadassah_Set_Apart]

I know absolutely nothing about pumps but Im looking at a HR freeze dryer & from my understanding is its the pumps that gives the most headaches. so a standard is 7cfm & either a clear or black 3/4 hose... However I have looked at a generic one from china & their pump looks bigger but unclear of what the cfm is on it other than 10pa but don't know what that means. Or is as simple as just changing hose? What would be a better option - also live in Australia if that helps.

[@thedorklylionchannel415]

That was really really interesting, thank you!

[@sandilane1405]

I have a freeze dryer and a 7cfm pump, supposedly, and I want to run a 5ft hose from machine to pump. A 3/8"ID hose with a 90 degree JIC fitting (so I could run hose out the back) wouldn't work... It only pulled 900 mtorr. Do you know what I'd need in the way of hose and ID to pull more. I need to get it below 500 mtorr. I know freeze drying isn't your thing but the tech is similar with pump and hose. Thought I'd give you a shout. Thanks for any help.

[@measureQuick]

Just order a TruBlue XL kit from TruTech Tools. It is a 3/4” hose and it will do the job very well. You are not even close to how your pump can perform with that 3/8” hose. BTW, if you need a 90 degree fitting for the TruBlu hose, TT has them also.

[@OcRefrig]

Great video ! This Video Really does Not suck ! i Mean it Does Suck - But in a Good way. Vacuum Jokes . 🤣🤣🤣 🤣 You Know someone was Bound to do it sometime. 🤣🤣🤣🤣 Thanks For Making it. You said the Black hose attached to the 12cfm was a 1/2" hose , i use a 1/2" hose & mine looks quite a bit bigger. im thinking that was a 3/8" hose and u misspoke ? coming off side of 12 cfm tee 1/2" im thinking it was 3/8" and 1/2" off top of 12 cfm tee. My 1/2" hose is also only 3 ft long that black one is wayyy too long. Great video though , it Really Shows those true blu hoses Perform Very Well ! They Look Like a Great Product !

[@hvacae6904]

So it means size doesnt matter...great explanation

[@yle3002]

dumb

[@SubramaniamLakshminarayanan]

On the contrary, size dos matter. The size of the hoses makes a difference.

[@U2BER2012]

I'm assuming that using a vac pump with the true blue hoses should allow it to run cooler, because of the shorter run time & the pump isn't working as hard?

[@measureQuick]

So actually it will run harder as it is doing more work. But it does it in a much much shorter amount of time. My guess is most times for residential if you purged with nitrogen prior less then 10 minutes so the pump will get to operating temperature and that is about it.

[@egemensuzgun4208]

i’m glad i got my 2CFM CPS pump now!! 👍

[@bubbaole9036]

All you need now... good hoses

[@egemensuzgun4208]

CPS gauge and hose 👌

[@HVACRDUDE]

I AM ABSOLUTELY IN LOVE WITH MY TRU BLU HOSES! AMAZING STUFF....ITS ALMOST UN REAL THAT THEY DIDNT COME OUT YEARS AGO...THEYVE CHANGED THE GAME.....GREAT VIDEO AS WELL....THE PROOF IS IN THE HOSE....NOW CAN YOU MAKE A 1" HOSE PLEEEEEEAAAASEEEEE SINCERELY- 🤙THE HVAC/R DUDE🤙

[@coldfinger459sub0]

HVAC/R DUDE in the meantime you could use soft copper line you make up your own ends for fittings. This is what my dad did and what my dad taught me at 12 years old and that was 41 years ago and I still use soft copper lines for my big jobs to this day.

[@HVACRDUDE]

@@coldfinger459sub0 I dont know what this has to do with my comment. But ok

[@coldfinger459sub0]

HVAC/R DUDE oops sorry didn’t catch your first line about having the True blue hoses 🤭 Reading while driving . It’s just a tip I give people who want to order true blue hoses to see how they were perform by using soft copper line set

[@measureQuick]

Awesome! Thanks, for the feedback. We actually looked at that with Accutools and it is at the point of diminishing returns. The ultimate vacuum and the speed are not significantly different due to the conductance speed of the system.

[@syedullah613]

Where can I buy trublu? Will it come with 1/4” flares?

[@b67fstb]

How long can a vacuum pump operate ? Can it run for an hour ? Cause mine shuts of after 20 min cause its hot !! I also have air bubbles in the oil fter a minute of operation ??

[@urieltinajero6079]

What I want to know is Do you need the 2 hose kit or the 3 hose kit ??

[@joelwatts7786]

Question about the TruBlue fittings how much loss of speed is had by using the 1/4 angle fittings compared to the 1/4 straight fitting?

[@measureQuick]

It’s every minimal, The losses are experienced during the initial degassing which is the shortest part of the evacuation. So from 760k to 20K microns. After that it does not really matter what fitting you are using. On a smaller system like 5 tons or less you might not even tell a difference.

[@brentsmith4528]

Hi Jim do you have any comments or have you tested Mastercool 18 v vacum pump ?

[@joryferrell7244]

Does anyone know roughly how many hours of use I should get out of this with proper maintenance?

[@measureQuick]

If you mean how long the pump would last, currently they are at the two year mark and we are not hearing of any issues.

[@OcRefrig]

Regarding --- Measure quick app. You have R-417a on the App could you please add R-417C. i would really appreciate it. if possible. i checked r-417a too see if it was close. its wayy too far off , so i cant use 417a even in a pinch. thanks. oc.

[@kevinstiles1752]

I just graduated HVAC this year. We were taught that pulling vacuum to fast can cause moisture in the system to freeze and not be removed. Is this really the case? If so, how much is too much?

[@measureQuick]

www.google.com/amp/s/www.hvacrschool.com/can-pulling-vacuum-fast-freeze-water-moisture/amp/

[@Enrilily]

u right absol..

[@raidone7413]

i wish the schools went into alot more depth for the science of vacuums. They just dont go over this stuff the way jim bergmann would

[@michaelmace924]

Let's try hooking them up to full systems...

[@measureQuick]

Michael Mace The results will be exactly the same. The volume is the volume.

[@brandonlucas4788]

Great video !

[@martinbrowne4922]

Great video well explained

[@rb111793]

Very helpful

[@GM-le5ti]

howdy. Im super late to your vid because i am a recent graduate for hvacr. Will like to purchase some of the equipment your displaying. Will you include links if possible? thank you in advanced

[@measureQuick]

Gilberto Martinez www.trutechtools.com/MeasureQuick?Affid=32

[@GM-le5ti]

@@measureQuick thank you very much

[@zaouikhalil1978]

I have tank compressor 60l what's the vacuum pump i need!?

[@wd8557]

Why don't you hook up the 12 cfm pump exactly like the other one. The smaller pump will get smoked period,

[@measureQuick]

It depends on the rig. If there were both hooked to the 4 valve manifold with 1/4" hoses they would be almost identical as the flow is restricted by the manifold and smaller hoses to about .5 CFM. It does not matter if you hook a 12 or a 2 CFM pump up, the hoses are the restricting factor. Hook them both to TruBlu, and the larger pump will win for sure as the pump is the major restriction after the hoses. There are three restrictions in every system, the pump, the connecting manifold and the system itself. One of them will always be the limiting factor on speed.

[@DROWXXI]

can the manifold be applied for solvent/Hydrocarbon use??

[@kevinkassie8573]

hi where can I purchase the hose?

[@oleRed_Zydeco]

Does anyone know if the JB eliminator and the appion hose set is comparable to the trublue?

[@measureQuick]

Not even close when it comes to deep vacuum and conductance speed.

[@oleRed_Zydeco]

@@measureQuick ok thank ya. Just wondering.

[@showTFup]

What's the size of the Blue Hose?

[@measureQuick]

3/4” ID

[@yugos.oficial]

Does anyone know if it is possible to install two pumps in pararell?

[@measureQuick]

It is most important to have a good connecting hose then a second pump. The system conductance really becomes the next limiting factor. So two pumps are definitely not necessary or recommended.

[@yugos.oficial]

@@measureQuick I will definitely use a hose like the blue one from the video as I understood the importance of a wide hose for a proper air flow. The thing is that the application I am using the vacuum pump for doesn't need to be super deep vacuum but to reach a good vacuum as soon as possible. I was just curious because I couldn't find any video in KZbin about connecting two pumps in parallel...

[@measureQuick]

@@yugos.oficial Just one large hose will do the trick especially for the high level degassing that you are trying to do.

[@jeffburton1326]

A true test would use the same manifold and hoses on both pumps.

[@SuperXaniotis]

Are the 3/4” hoses effective with the vp55 pump?

[@measureQuick]

Yes with any pump. The hose effectively moves all of the work the pump is doing to the hose ends. It most completely eliminates the losses.

[@familiamonzoncarril9876]

excelente video , lastima no esta subtitulado en castellano

[@LC-yv9ey]

What if I just use two small pumps 😂

[@sweatkamran]

Hi I just bought the w2v20 vaccum pump I want to know( W2V20 )can use for 2hp air conditioner and can pump the pressure for Chek the leakage. Please reply as ap

[@steve9272]

would the 2cfm pump work just as good 3/8 hose

[@measureQuick]

Steven Nieves no, all of the 3/8” and 1/2” you see is repurposed refrigerant charging hose. TruBlue is made differently. It is engineered for vacuum. It performs exponentially better.

[@steve9272]

so the 3/8 or 1/2 repurposed refrigerant charging hose gets less then 2 cfm

[@measureQuick]

3/8” (1/2” OD) nominal diameter is good for about .7 CFM at 1000 microns and gets lower the deeper the vacuum gets. That type of hose is not as good for deep vacuum.

[@hg2.]

Well done.

[@vypr8846]

You depressurised two tanks, graph only registered one.?

[@measureQuick]

Both are graphed, only the first gauge displays the micron reading below the graph.

[@vypr8846]

@@measureQuick 👍 Thanks for that, confused me till now.

[@yorkrojas1452]

Amazing!!

[@dragonfury3602]

Great!

[@arturobolanos6061]

Amazing

[@JibrilKhan-ff5zs]

Hi

[@bubbaole9036]

Nice vid Thx

[@davidweeks1997]

This video sucks, a lot. Awesome!

[@Pennconst101]

are the truvac Micron gauges water resistance rated?

[@measureQuick]

They are not water proof, but they are resistant to things like rain.

[@Pennconst101]

@@measureQuick THANK YOU! They would do well to list things like that as a bullet point. I know a few guys who dont want to spend $3-400 to find out they can’t handle getting wet.