Installing shut off valve

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  #1  
Old 03-25-00, 05:21 PM
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Angry

I just replaced a shut off valve. However, since both ends are female and are same thread, whenever I tighten one end it losens the other. How do I get around this?
Any help is greatly appreciated.

many thanks

Mike
 
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  #2  
Old 03-25-00, 06:36 PM
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Are you using a compression type. If so tighten the bottom part that is on the copper and hold a backup on the valve its self. An adjustable open end wrench work well for this. Do the same for the top nut.
 
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Old 03-25-00, 06:40 PM
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I am using a ball type.
 
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Old 03-25-00, 06:47 PM
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Sorry I didn't complete the message - There is no nut on the pipe itself, both nuts are on the valve.
 
  #5  
Old 03-25-00, 06:58 PM
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Mike, Like CO Kid said, you need to use backup wrench on valve. It should have compression fittings on both sides with ferrals (sp?). The ferrals slide over pipe and compress under ends nuts. Do you see what we're talking about?
 
  #6  
Old 03-25-00, 07:10 PM
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I guess I am missing something. The 2 pipes that connect to each end of the valve have a thread on them and that is all. The valve just has the 2 ends and they don't move separately from the valve. Are the ferules sold separately? The old valve didn't have any either.
 
  #7  
Old 03-25-00, 10:35 PM
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You have installed a valve that has pipe threads on both the inlet and the outlet end?The only 2 ways to get everything tight are: 1.) remove a little more pipe and add a union, or 2.) plan on replacing all of the pipe from the shutoff valve to the end of the run. Plumbing only uses right hand threads!
 
  #8  
Old 03-26-00, 03:08 PM
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many thanks for your help. I did as mentioned and it worked. I really appreciate it.

Mike
 
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