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  1. #1
    Join Date
    Jun 2008
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    Sporlan threaded sight glass leaks

    Anyone else have a lot of these leaking in 410a systems? Leaking from the threads?

  2. #2
    Join Date
    Jan 2010
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    Never seen a threaded Sporlan sight glass. Seen plenty of threaded Alco sight glasses......and plenty that leak.

    Sent from my SM-N910W8 using Tapatalk

  3. #3
    Join Date
    Dec 2014
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    Are you refering to the 1/2 bolt head, whereby you can change the element? Or to a flare connection?

    Is whereby a real word?

    Sent from my SM-G930V using Tapatalk

  4. #4
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    Jun 2008
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    Thread Starter
    Quote Originally Posted by icy78 View Post
    Are you refering to the 1/2 bolt head, whereby you can change the element? Or to a flare connection?

    Is whereby a real word?

    Sent from my SM-G930V using Tapatalk
    Not quite to what i am referring.
    Threaded sight glass, sporlan ac-20 is a replacement cartridge.
    This link should have a picture of it, whereby you will have no doubt to what I refer. Ha. Literature doesn’t say to thread seal threads, just oil and tighten?

    https://www.amazon.com/Sporlan-Valve.../dp/B008HOXMVK

  5. #5
    Join Date
    Aug 2002
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    Southold, NY
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    A little Nylog and it should be good to go.

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  7. #6
    Join Date
    Mar 2013
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    Billington Heights, NY
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    Quote Originally Posted by icy78 View Post

    Is whereby a real word?
    yes

  8. #7
    Join Date
    Nov 2011
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    East Side
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    I use white Teflon and sofset on them.


    Sent from my iPhone using Tapatalk

  9. #8
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    Jun 2008
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    Canada
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    Thread Starter
    Just don’t understand why literature says only to oil, hand tight, then additional 1/6 turn. Had no success with that at all. Tape and dope, problem solved.

  10. #9
    Join Date
    Jul 2008
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    Quote Originally Posted by pecmsg View Post
    A little Nylog and it should be good to go.
    What he said and yes I've seen ALOT of them leak. So much so that if the system is already under the knife I replace with the none threaded style. But that's just me. Nylog/leak lock good stuff


    Sent from my iPhone using Tapatalk
    "It's just like it doesn't work. I mean it seems to be ok now, but it usually like never works"

    "Never an always and always a maybe"

  11. #10
    Join Date
    Dec 2006
    Location
    new england
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    I've got a building with 3 big 120 ton splits. I've done a few cartridge style sight glass repairs due to leaks shown by oil stains. I don't think they can handle the 410a pressures. I just put nylon on the replacement s/g threads.

  12. #11
    Join Date
    Dec 2016
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    Quote Originally Posted by BALloyd View Post
    Never seen a threaded Sporlan sight glass. Seen plenty of threaded Alco sight glasses......and plenty that leak.

    Sent from my SM-N910W8 using Tapatalk
    Yes never used threaded again.


    Sent from my SM-G930P using Tapatalk

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  14. #12
    Join Date
    May 2009
    Location
    Earth
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    Tightened up the site on a vintage 1970s Carrier at an ice cream stand the other day. Good for another 40 years.

    Sent from my Nexus 6P using Tapatalk

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