Ask Experts Questions for FREE Help !
Ask
    Mick74's Avatar
    Mick74 Posts: 5, Reputation: 1
    New Member
     
    #1

    Jan 12, 2009, 05:00 PM
    Install a copper shut off valve
    Is it necessary to take apart the 3/4 inch copper shut off valve prior to soldering it in place in order to avoid melting the ball seals?
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
     
    #2

    Jan 12, 2009, 05:18 PM
    Hi Mick...

    If you are asking about a BALL VALVE shutoff (see picture) then NO... no need to disassemble. It would be very hard to do this anyway.

    If you are asking about an older style shutoff (stop & waste... 2nd pic.) that has a rubber washer then YES, I recommend that you disassemble the unit at the stem, if possible, and set aside while soldering. Then after shutoff cools you can re-install the stem/washer assembly and tighten packing nut and should be good to go. You should also note here that many people will not do this... up to you.

    Be sure to remove the pet cock cap and rubber seal BEFORE soldering... ;)

    Let me know if you want to discuss...

    MARK
    Attached Images
      
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
     
    #3

    Jan 12, 2009, 06:03 PM

    Tighten the packing nut on top of the valve after installation. Many times, I've found these loose.

    It's wise to loosen the packing nut too.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
     
    #4

    Jan 12, 2009, 06:24 PM

    You may solder both these vavles without disassembling valve.(if you are familiar with soldering.). Make sure valves are in fully open position. And don't close them until they have cooled. If you are not a pro solderer, then it would be best to follow marks advice on the globe valve(second pic).

    You can also wrap a wet rag arount the valve body when soldering, this will reduce chance of damage to valve inards. Please lets us know how things work out.
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
     
    #5

    Jan 12, 2009, 10:26 PM

    Just to confirm: No, there is no need to disassemble the valve. However, do not overheat the valve.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

1 valve shut off hot water tank valve [ 9 Answers ]

I was just trying to get some Pro's thoughts on, why there would be a shut off valve on the hot line going out of my hot water tank, and no valve on the cold coming in? Is there a reason for this? Is it OK to add a valve on the cold,so I can isolate the tank, by shuting both valves , and would...

Copper shower pan install [ 2 Answers ]

I would like to install a copper shower pan for a custom shower . Not quite sure how to do this ? Anyone have experience doing this?

No Shut Off Valve between water heater and bathroom sink valve [ 14 Answers ]

I have a constant drip in my bathroom sink. After a little trouble shooting, I came to the conclusion that my hot water valve underneath the sink is the culprit. I traced the pipe down the wall, into the basement and to the water heater. The only thing between the water heater and the old valve in...

Sweating copper to copper valve connections [ 1 Answers ]

I'm replacing my shower with a Moen system that has a Moentrol three function transfer valve Model 3330. The inlet and outlets are copper to copper. Other than removing the cartridges prior to sweating is their any particular trick to heating those connections on the valve? Thanks very much for...

Install Bathtub shut off valve [ 6 Answers ]

Hello! We are trying to install a shut off valve as a temporary fix to a broken faucet, not being paid till the first and needing this taken care of. My toddler was in the bathtub when I went to turn off the hot water and the faucet shot off the wall, along with gallons of water like a geiser, we...


View more questions Search