Method to raise shut off valve

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by gagecalman, Feb 21, 2021.

  1. gagecalman

    gagecalman Member

    Joined:
    Nov 25, 2016
    Location:
    Baltimore, MD
    I am helping a friend replace the two bad main valves in his house. The pipe is 3/4" and we will use a threaded ball valve. He wants to raise the valve up higher.
    What's the best way to do this? Can we use a long nipple? If so is galvanized a bad idea? From phone 013.jpg
    Thanks.
     
  2. James Henry

    James Henry In the Trades

    Joined:
    Jul 23, 2019
    Occupation:
    Plumber
    Location:
    Billings, Montana.
    A nipple is no longer called a nipple when it becomes longer than 12", after 12" it is considered a pipe. Use a brass nipple and 2 pipe wrenches.
     
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  4. Jeff H Young

    Jeff H Young In the Trades

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    Feb 27, 2020
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    92346
    Gagecalman since you want it higher I guess your looking at a 12incher or 18 inch piece . If the 90 at bottom is galvinized might just leave that short brass nipple there and couple on to it. looks like pvc in basement or cpvc above if pvc might want to take a look into where its going generaly dosent belong in house
     
  5. gagecalman

    gagecalman Member

    Joined:
    Nov 25, 2016
    Location:
    Baltimore, MD
    Glad to know. Thanks!
     
  6. gagecalman

    gagecalman Member

    Joined:
    Nov 25, 2016
    Location:
    Baltimore, MD
    He was trying for 18" higher. That's not a brass nipple. Just rusted.
    I was hoping to come off of the 90 with an 18" pipe and then the valve. Can't find brass that long.
    Is galvanized a bad idea or against code? The service will probably fail before the new 18" pipe does.
    That is CPVC but there is also some PVC. I'm replacing that as well. Thanks!
    From phone 149.jpg
     
  7. Sylvan

    Sylvan Still learning

    Joined:
    Sep 23, 2004
    Occupation:
    plumbing - fire suppression - boiler inspector
    Location:
    New York
    "Is galvanized a bad idea or against code? "

    Actually galvanized is NOT against code BUT I once had to testify against a plumbing company and found that ferrous and nonferrous piping shall not be connected on water lines without protection

    After finding this little note I was able to prove the plumbing was contrary to code

    In actuality, all galvanized supply piping has a brass valve for isolation but the fine print says dissimilar metals must be protected from galvanic action (corrosion) by use of a dielectric fitting or nipple

    On steam work, you will see a black pipe with brass valves and same with gas piping it is only galvanized and nonferrous metal that this is more pronounced
     
  8. Jeff H Young

    Jeff H Young In the Trades

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    Feb 27, 2020
    Location:
    92346
    your right gagecalman, I might not waste brass on that old stuff. whats a new piece of gal going to mater on 60 year old . its accesable as well. but generaly I dont use gal but this is an example of where I would very much concider it.
     
  9. Tuttles Revenge

    Tuttles Revenge In the Trades

    Joined:
    Oct 15, 2014
    I would't install galvanized anywhere for anything. The new galvanized nipples that I've seen used in tub spouts have huge rust in them really quick.

    Easy to make up any length of pipe too in copper. As long as you provide the proper separation between disimilar metals as Sylvan pointed out.. We use a minimum of 6" of brass nipple to transition between steel and copper.

    I purchased a 10ft section of 1/2 brass pipe for a project and just used a hand threader to make my own pipe sections. Its really soft material, so its really easy to work with.

    Tub fitting.jpg
     
  10. Jeff H Young

    Jeff H Young In the Trades

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    Feb 27, 2020
    Location:
    92346
    I don't know why but earlier I couldn't see the second picture . after seeing more of the work ... I'd still run the galvanized or rip out a bunch of plastic , Galvanized is very strong can take a beating , temporary work exposed is perfect till the job gets done right (re pipe)
    BTW Very nice work Tuttles!
     
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