Results 1 to 5 of 5
  1. #1
    Join Date
    Mar 2007
    Location
    Las Vegas, NV
    Posts
    222

    Default Wilkins/Zurn Water Pressure Reducing Valve Problem

    I have a Wilkins Mdl. 70 water pressure reducing valve on a 1" copper main line that, when adjusted in either direction by of use the diaphragm bolt, has no affect on the water pressure of 100 lb. as read with a Watts water pressure gauge at the washing machine faucet. Valve is about 10 years old.

    Turning the bolt counter clockwise is supposed to reduce line pressure and clockwise, increase it. From turned all the way in to so far out it almost falls out of the housing, the adjustment bolt has no affect.

    After each adjustment attempt, a house faucet is opened momentarily to allow pressures to equalize.

    Any insight to potential valve problems? If found to be defective, would re-building it be adequate or is replacing the entire unit recommended.

    Similar Threads:
    Last edited by Bob Knauff; 05-09-2010 at 04:10 AM. Reason: Added Info.
    Inspection Referral
    Beacon Inspection Services
    Proudly Serving the Greater Henderson and Las Vegas Valley Area in Southern Nevada!
    Like Beacon On Facebook

  2. #2
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Wilkins/Zurn Water Pressure Reducing Valve Problem

    If it does not have stainer in front of it (and it probably does not) then is full of gunk. The ones I have taken apart are in such bad condition on the insides it is easier to replace them than to rebuild it and then get it to work properly. If you do replace it be sure to install a strainer on the inlet side to keep it from happening again.


  3. #3
    Join Date
    Mar 2007
    Location
    Las Vegas, NV
    Posts
    222

    Default Re: Wilkins/Zurn Water Pressure Reducing Valve Problem

    By gunked up, do you mean the inside of the valve housing gets messed up/damaged as well as the cartridge and/or mechanism, James?

    Beacon Inspection Services
    Proudly Serving the Greater Henderson and Las Vegas Valley Area in Southern Nevada!
    Like Beacon On Facebook

  4. #4
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Wilkins/Zurn Water Pressure Reducing Valve Problem

    The ones I have seen have an oily, muddy substance along with some corrosion and pitting that prevents the inside components from moving.


  5. #5
    Join Date
    Mar 2007
    Location
    Las Vegas, NV
    Posts
    222

    Default Re: Wilkins/Zurn Water Pressure Reducing Valve Problem

    Thanks for the response Jim. I have removed the old unit and the following images are of the insides of it. I tossed the spring before I thought to take pics but it looked fine except for a whitish powdery substance on it similar to that on the rubber valve in the attached photo.

    Everything seemed clean and moving freely. The only suspicious thing I noticed is the off center indent in the rubber stopper as seen in the photo. Perhaps the valve body was hitting the metal at the rubber stopper preventing it from closing all the way? I don't know. The replacement valve works fine!

    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images
    Beacon Inspection Services
    Proudly Serving the Greater Henderson and Las Vegas Valley Area in Southern Nevada!
    Like Beacon On Facebook

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •