Replacing / repairing PRV

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by shluffer, Mar 9, 2010.

  1. shluffer

    shluffer Member

    Apr 23, 2008
    This is a caompanion thread to my optimal PSI thread.

    I think my valve is dead. It now reduces the preasure down to 25. is this concistent with a failed valve, or do they stop decreasing the preasure when they fail? I did try and tighten the adjustment screw, but it did not have any affect. This leads me to believe it broke.

    I am going to replace or rebuild my watts U5B preasure reducing valve.

    The question is if it is worth repairing it. Am I better off just buying a new one?

    I would replace an older U5B (the part numbner is 135B1M3) with one of the new U5BZ3. If anyone has a suggestion as to a valve that is better let me know.

    Thanks in advance for the help.
  2. Basement_Lurker

    Basement_Lurker One who lurks

    Jun 21, 2007
    I smash things and demand money.
    Victoria, BC
    Replacing it is simpler, better, and faster, although more expensive. However you might not have access to proper repair parts.
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    I would NEVER spend the time trying to repair one, but since it is your own PRV labor is not a factor so you could try it. often, however, the results can be less than desirable and you could wind up installing a new one anyway.
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