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  1. #1
    Join Date
    Nov 2010
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    Lightbulb oil less vacuum pump

    has anyone used a oil free vacuum pump for service work ?

  2. #2
    Join Date
    Jul 2019
    Location
    Oklahoma home its in the name
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    Yes but it was attached to the diesel engine in the van I was driving. It failed frequently.

    In all seriousness I don't think there are any oil less vacuum pumps designed for ac service. That is more of a process or lab specialty type thing.


    Sent from mars using Tapatalk

  3. #3
    Join Date
    Nov 2010
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    Thread Starter
    Thanks , I was given this oil less vacuum pump from a friend of mine . He in turn got it from a friend of his who was cleaning out a house which also had different refrigerants and a recovery unit . So this guy has been using this pump for his service for years . So it got me thinking , either he been doing it wrong for years or he knows something we don't.
    Thanks again , Mario

  4. #4
    Join Date
    Jul 2019
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    Oklahoma home its in the name
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    That is super interesting. Have you put a micron gauge on it to test it?
    I would be surprised if it could get to 15 microns like an oiled pump but if it could get below 500 microns it may be helpful for initial drying of very wet systems.
    Quote Originally Posted by mario tonzelli View Post
    Thanks , I was given this oil less vacuum pump from a friend of mine . He in turn got it from a friend of his who was cleaning out a house which also had different refrigerants and a recovery unit . So this guy has been using this pump for his service for years . So it got me thinking , either he been doing it wrong for years or he knows something we don't.
    Thanks again , Mario
    Sent from mars using Tapatalk

  5. #5
    Join Date
    Jul 2018
    Location
    Wisconsin
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    Doubt its rated for a deep vacuum

    Sent from my SM-G960U using Tapatalk

  6. #6
    Join Date
    Jul 2009
    Location
    Columbia, MD
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    We have oil-less pumps for chillers and stuff. Ive used them on very wet systems.

    They need to be sent back after so many hours for maintenance. You will know when you put a micron gauge on her and she dont pull down low anymore.


    Sent from my iPhone using Tapatalk

  7. #7
    Join Date
    Nov 2010
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    Thread Starter
    Since this pump was given to me on Fri ,I haven't done anything but try it . It pulls a vacuum 30 in gauge . I'm going to put a micron gauge on it . I let you know .

    Mario

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  9. #8
    Join Date
    Nov 2010
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    Thread Starter
    OK I ran this pump for 15 minutes with a micron gauge on it . The best it could do was 60,000 microns . This is an old pump . so I guess part of the reading would be due to age . Either way this guy was using this type of vacuum pump for service work for a long time . Makes you wonder

  10. Likes R600a liked this post.
  11. #9
    Join Date
    Jul 2009
    Location
    Columbia, MD
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    They work great if they are serviced and maintained


    Sent from my iPhone using Tapatalk

  12. #10
    Join Date
    Dec 2006
    Location
    Vancouver, B.C.
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    Quote Originally Posted by mario tonzelli View Post
    OK I ran this pump for 15 minutes with a micron gauge on it . The best it could do was 60,000 microns . This is an old pump . so I guess part of the reading would be due to age . Either way this guy was using this type of vacuum pump for service work for a long time . Makes you wonder
    If you get it serviced please report back the results you get from another test.


    Sent from my iPhone using Tapatalk
    Quickly, I must hurry, for there go my people and I am their leader!

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