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Thread: vacum setup

  1. #66
    Quote Originally Posted by 270wsm View Post
    How much faster would vacuum go if I changed my 3/8 vacuum port on my pump to 1/2" and used a 1/2 tee instead if 3/8 and ordered my Appion 1/2" hoses with 1/2 connection instead of the standard 3/8" connection???
    The only realistic answer is the the evacuation time wold decrease "noticeably". The variables are just too numerous to give a pat answer.

  2. #67
    Join Date
    Oct 2009
    Location
    Raleigh, NC
    Posts
    790
    Quote Originally Posted by hvaclover View Post
    I'd thought of thought too, but when I bought one from HD, the pipe threads just didn't seem right..Chink made of course.

    Just didn't want to take a chance on cross threading the pumpm intake.

    Some take NPT and others take MPT. So you have to be care ful on what you buy.

    I got my one of my tees from Fastenal and it cost 2.99.

    I talked to a local vac pump servicer and got my sizes straight before I took the plunge. You cross thread the the in take you are in for some expensive OEM parts
    Ignoring the obvious racially insensitive remark, aren't National Pipe Thread and Male Pipe Thread the same thing?

  3. #68
    Quote Originally Posted by MicahWes View Post
    Ignoring the obvious racially insensitive remark, aren't National Pipe Thread and Male Pipe Thread the same thing?
    No.

    One is tapered and one is straight.

    FYI...that's just the way Uncle Clover expresses Himself.

  4. #69
    Join Date
    Oct 2009
    Location
    Raleigh, NC
    Posts
    790
    I have always known them to be the exact same thing. I only spent five minutes looking just now, but I don't see anything on the internet that says any different.

    Sent from my ADR6350 using Tapatalk 2

  5. #70
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,046

    vacum setup

    Quote Originally Posted by MicahWes View Post
    I have always known them to be the exact same thing. I only spent five minutes looking just now, but I don't see anything on the internet that says any different.

    Sent from my ADR6350 using Tapatalk 2
    They are exactly the same, both have tapered threads. http://engineeringtoolbox.com/npt-national-pipe-taper-threads-d_750.html

  6. #71
    Join Date
    May 2012
    Location
    Nova Scotia, Canada
    Posts
    41
    How often so you guys clean your micron gauges?

  7. #72
    Quote Originally Posted by MicahWes View Post
    I have always known them to be the exact same thing. I only spent five minutes looking just now, but I don't see anything on the internet that says any different.

    Sent from my ADR6350 using Tapatalk 2
    You are correct. I was mistaken.

  8. #73
    Join Date
    Feb 2013
    Location
    NE philly
    Posts
    9
    i wanna buy one whats the company who makes it?

  9. #74
    Join Date
    Oct 2008
    Location
    Ohio, USA
    Posts
    168
    Something to remember:

    I have the appion flow rig with 1/2 hoses, an appion vacuum pump, and a bluvac.

    I was recently working on a small system (double door reach in cooler) after a compressor change-out, and was only able to get to 1000 microns.

    I was trying everything. Tightening all hose connections gorilla tight. Nitrogen purging. Leaking king valve stem? Leak somewhere else?

    Then I took all my hoses and connectors apart, and dabbed some Nylog on the ends. (it's been a few months since I did this)

    Hooked back up, went down to ~300 microns in 20 secs.

    Lesson learned.

  10. #75
    Join Date
    Jun 2002
    Location
    south jersey
    Posts
    1,096
    I have used the Nylog. I am afraid it is going to clog the port. In the video on the website they use it on shraders. It is pretty thick stuff. Especially the one for r-22. Has anybody ever had a problem. When I use it on the face of flares it looks like it will clog the pipe. This makes me afraid to use it on shrader ports.
    You need to put the phone down and get back to work!

  11. #76
    Join Date
    Feb 2012
    Location
    Toronto Canada
    Posts
    1,090
    I am testing out nylog Tommorow for the first time. I didn't like how I had to buy to different kinds.


    So what is the part# for the tee that everyone uses for their vacuum setup?

  12. #77
    Join Date
    Feb 2010
    Location
    Calgary, Alberta
    Posts
    1,087
    Quote Originally Posted by OldSchoolMech View Post
    I am testing out nylog Tommorow for the first time. I didn't like how I had to buy to different kinds.


    So what is the part# for the tee that everyone uses for their vacuum setup?
    I'm pretty confident the HFC nylon is compatible to cfc and hcfc.
    It works wonders for evacuation.

  13. #78
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,787
    OldSchoolMech. Just use the blue nylog HFC. it will work on both 22 and 410. it is also easier to work with. the red stuff is super tacky

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