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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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    Hi Charlie

    Sounds like there is a leak somewhere. Windex, a soapy solution, leak finding product, Mr Bubble, etc all will work. I can't remember the name of the product at Lowe's, Home Depot, etc that herns told me about.

    If the Burkert solenoid isn't mounted in the correct orientation, you will get a leak. It goes: INLET > [ P side , A side ] > OUTLET

    Please let us know what you find.

    Left C
     
  2. Left C

    Left C Lifetime Members
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    Samsung 23" monitor for $140.

    This hasn't got anything to do with two stage regulators except for how you view them and the fact that I like deals. Best Buy has a model 2333T 23" wide screen 1920x1080 monitor for $140. There is free shipping and it comes with a 3 year warranty even though Best Buy's site says that it only has a 1 year warranty. It picked one up yesterday and it looks very good even though it has a 8 ms response time. The better models have a 2 to 5 ms response time. The 2333T isn't listed on Samsung's site for some reason.
     
    #1722 Left C, Dec 5, 2010
    Last edited by a moderator: Dec 23, 2010
  3. Matt F.

    Matt F. Lifetime Charter Member
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    How much does your psi drop. And when does it drop? What working pressure psi are you running? tell us a little more.
     
  4. Jim Miller

    Jim Miller Lifetime Charter Member
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    Got input and output off and cleaned little teflon bits out of ports. I'll probably get it all together sometime this week. My stand will be high enough to accommodate a 20lb tank so I'll start the hunt for that this week.

    First use will be CO2 enrichment for DSM growout which will start soon after I pick up the tank and stand in January.

    Jim
     
  5. Matt F.

    Matt F. Lifetime Charter Member
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    I use a q-tip and some rubbing alcohol for this! ;)
     
  6. Left C

    Left C Lifetime Members
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    What plant(s) have you decided to use?

    Didn't someone mention that you don't need to add extra CO2 for the DSM?
     
  7. Matt F.

    Matt F. Lifetime Charter Member
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    Very true. injecting co2 for the DSm is not needed.
     
  8. Matt F.

    Matt F. Lifetime Charter Member
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    opps. will edit this with a useful post tomorrow...lol
     
    #1728 Matt F., Dec 6, 2010
    Last edited by a moderator: Dec 7, 2010
  9. Left C

    Left C Lifetime Members
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  10. Matt F.

    Matt F. Lifetime Charter Member
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  11. Matt F.

    Matt F. Lifetime Charter Member
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    Here is the newest BHT 500 I aquired. It's a Victor HPT500 which is nickel plated rather than chromed. It has the -30-0-60psi low pressure gauge (a True "B" regulator). I installed a Smith 3" nut/nipple and removed the relief valve and replaced it with a stainless swagelok 1/4" hex plug. The post body is going to be all swagelok stainless.
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    Nickel is more corrosion prone than Chrome, so when you see an actual HPT 500 on the market it is worth the price.
     
    #1731 Matt F., Dec 8, 2010
    Last edited by a moderator: Dec 8, 2010
  12. bsmith782

    bsmith782 Guru Class Expert

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    Im all about victor but $7 for Teflon tape and $9 for soapy water.
     
  13. Matt F.

    Matt F. Lifetime Charter Member
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    I use $.99 teflon tape and simple green...lol
     
  14. 2112

    2112 Prolific Poster

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    Matt, do you and Left C have a difference of opinion regarding the use of Teflon tape now? I know you had a leak a while back and solved the problem after Victor told you they recommend tape, but since then it seems that's all you've been using.
     
  15. Matt F.

    Matt F. Lifetime Charter Member
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    No, I don't think we differ. the engineers I talked to say that teflon tape should be used on stainless regulators. When building or repairing stainless body regulators, they use teflon tape on all the body connection points.

    This does two things:

    1) it seals the threads

    2) it protects the female threads in the stainless body from the male threads of the npt fittings should a repair be needed. Stainless threads, according to the victor people are very stange. 9/10 will unscrew fine, but occassionally you'll there will be one regulator where the female threads in the regulator body will come out with whatever piece you are trying to remove.

    My rule of thumb is on high pressure brass or chrome plated brass parts, teflon tape can be used. Non hardening thread sealer can be used in the low pressure areas like the post body.

    This is just what I do.

    All stainless components that screw into a stainless regulator get teflon tape.
    If you lift threads out of a stainless regulator, it becomes an expensive piece of trash.

    People can use non-hardening thread sealer in high pressure areas, too. I think my ARP stuff is rated to 10,000 psi or something crazy like that, but the non- hardening thread sealer didn't work on my stainless regulator. Gas still escaped.

    On more perm. connections= teflon
    on temp connections = non-hardening thread sealer.

    edit: this is just what makes sense to me. I am sure there are other ways to do it. I'm not an expert on regulators.
     
    #1735 Matt F., Dec 9, 2010
    Last edited by a moderator: Dec 9, 2010
  16. Left C

    Left C Lifetime Members
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  17. bsmith782

    bsmith782 Guru Class Expert

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    I only use Teflon tape. I tried dope once on the recommendation of another hobbyist and that was all for me. The Teflon goes on/off easier plus I just feel safer with tape that it wont get stuck anywhere I dont want it.
     
  18. S&KGray

    S&KGray Guru Class Expert

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    :eek:







    heheh j/k
     
  19. DukeNJ

    DukeNJ Lifetime Charter Member
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    Seems to be a lot of Mathesons available at reasonable prices lately. Any reason they aren't being scooped up? Good products?
     
  20. Left C

    Left C Lifetime Members
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    Matheson two stage regulators have a good reputation for holding up really well.
     
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