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Dual Stage Regulators

Discussion in 'CO2 Enrichment' started by Left C, Nov 17, 2009.

  1. Left C

    Left C Lifetime Members
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    I built one of my first regulators using the brass equivalent of those parts in the first one. I recently sold a regulator built using the brass equivalent of the second one.

    I noticed that since the regulators' outputs were at 7 o'clock and I was using JBJ bubble counters that it was easier to get the fittings on tight and straight the first way than the second way. Both ways worked just fine, but the first way was easier. Well, easier for me anyway. Since there are odd angles involved from the regulator to the bubble counter, I found that I had more adjustability using the first way because of the additional fittings.
     
  2. Matt F.

    Matt F. Lifetime Charter Member
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    yeah, my bubble counter is rotated back just a bit. it's not totally vertical, but it's totally functional. I like the simplicity of the design and the fact that there are fewer points where the regulator assem can leak.
     
  3. herns

    herns Guru Class Expert

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    Here's an old sketch I posted on TPT last year. The fittings may not be the same what Left C have listed above.

    [​IMG]
     
    #1163 herns, Sep 9, 2010
    Last edited by a moderator: Sep 9, 2010
  4. Matt F.

    Matt F. Lifetime Charter Member
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    might want to invest in a SS-2C2-1/3 check valve under the jbj and above the needle valve instead of the S-2-HN.
     
  5. darkoon

    darkoon Prolific Poster

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    Hi Matt,

    what's the reason to invest in such high quality check valve? I heard JBJ bubble counters come with an internal check valve?
     
  6. Left C

    Left C Lifetime Members
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  7. Matt F.

    Matt F. Lifetime Charter Member
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    Brand New Nuaire VTS253A-1993 regulators are about $235 each, come to find out.
     
  8. Left C

    Left C Lifetime Members
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    I give up. Where are they?
     
  9. Matt F.

    Matt F. Lifetime Charter Member
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    I'll find out the particulars tomorrow when they email me. But they sell *new* for $235 plus shipping.
    Also, J&R welding supply has chrome plated brass CGA 320 connectors and also brass and stainless. Easy ordering:
    http://www.jandrweldingsupply.com/store/Smith/SpecMenu.html


    Look under "accessories," then CGA, etc. on the left of the page.
     
    #1169 Matt F., Sep 10, 2010
    Last edited by a moderator: Sep 10, 2010
  10. Matt F.

    Matt F. Lifetime Charter Member
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    #1170 Matt F., Sep 10, 2010
    Last edited by a moderator: Sep 11, 2010
  11. Left C

    Left C Lifetime Members
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    Cool !!!!!!!!
     
    #1171 Left C, Sep 10, 2010
    Last edited by a moderator: Sep 10, 2010
  12. Matt F.

    Matt F. Lifetime Charter Member
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    :) The vts253a-1993 is my favorite regulator bar none.
     
  13. Left C

    Left C Lifetime Members
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    Me too!!!!!
     
  14. Matt F.

    Matt F. Lifetime Charter Member
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    you gonna get a brand new one as a backup?
     
  15. Left C

    Left C Lifetime Members
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    I have a new one. It is still in the bag. Mine was $60. I got it from mrmotorcycles on ebay.
     
  16. Matt F.

    Matt F. Lifetime Charter Member
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    my "new" ebay 1993 wasn't in the bag, but it was $62. My new one will stay in the bag forever!

    That's one heck of a deal. This mrmotorcycles seems like quite the dude.
     
  17. Left C

    Left C Lifetime Members
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    I bought 5 from him. Three were in mint condition and two were new. I've sold three of them including one of the new ones. The three that I sold were built. The new one that was built and sold had all my best parts, the guy hasn't paid for it. Bummer. I'd like to have it back. Oh, well.
     
  18. jazzlvr123

    jazzlvr123 Guru Class Expert

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    Hello, I recently Purchased 3 Victor regulators all CGA-540 rated for oxygen I purchased three adapter nut and nipples from the website recommended by leftC here: http://www.regulatortorchrepair.com/store.php/products/cga-320-nut-and-nipple

    So the nut and nipple came in the mail and I went to the store to ask them to replace it and they said the CGA-540 is rated for oxygen meaning its a high pressure regulator, and co2 is a low pressure gas. So if I ran this high pressure regulator on low pressure system like co2, will i run into a any problems. the welding specialist guy said he wouldn't recommend it, but he also said he wouldn't know what would happen if you did do such a thing. Is it safe to install this regulator? I really would like to use this one and not get a new one considering i paid $275 a pop for these suckers.

    Thanks for your help in advance, Kyle
     
  19. Left C

    Left C Lifetime Members
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    I remember you. You got a VTS253A-1993 from mrmotorcycles a few years ago.



    We need more info about your regulators. O2 regulators come in many forms. What part number so we can look it up?

    Many folks have used O2 regulators. Your VTS253A-1993 came from the factory rated for CO2 and O2 as well.


    What are the pressure ranges of the gauges? If they are in spec, you should be OK. If you have a low pressure regulator and were planning on using a high pressure gas, I sure wouldn't do it. Your problem is the reverse.

    What range does the high pressure gauge cover? 0 to 3000 psi, 0 to 4000 psi? >> should be OK

    What range does the low pressure gauge cover? 0 to 30 psi, 0 to 60 psi, 0 to 100 psi, 0 to 200 psi? >> should be OK
     
  20. Matt F.

    Matt F. Lifetime Charter Member
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    Here are pics of my newest addition (HPT500):

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    This is currently for sale (I'm asking the price I paid for it on ebay). Pm me if interested.
     
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