Moody Control Valves

Discussion in 'Irrigation' started by kid753, Jun 22, 2008.

  1. kid753

    kid753 LawnSite Member
    Posts: 2

    I am looking for replacement diaphragms for brass Moody Control valves. The number stamped on the top with the solenoid appears to be 2888. Also, does anyone know if they are 24V DC?
    kid753
     
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,997

    Got a photo? Got a size? 24VDC? Try 24VAC.
     
  3. kid753

    kid753 LawnSite Member
    Posts: 2

    The diameter of the diaphragm is 2 1/8 inches. I imagine the valves may be up to 50 years old given the age of the house.
     
  4. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,997

    There is more than one series of Moody brass valves, so you need to bring a little more detail, or just pick up your phone and checkbook, and hire it done.
     
  5. irrig8r

    irrig8r LawnSite Platinum Member
    Posts: 4,535

    They have a crappy and disfunctional website, but The Source, formerly R-Co Parts, probably has the parts you need.

    They have a paper reference manual with exploded views of lots of valves. The online version isn't up yet.

    http://thesource-online.com/RCORef.pdf has been "coming soon" for a long time.

    If you PM me with the valve series number I could probably scan and send a pdf of the page with part numbers.

    Check with your distributor and see if they have a paper copy because if you don't know the valve series, sometimes it's easier to compare pictures.

    As for the voltage, disconnect your wires, fire up the zone and check... you'll probably read between 24 and 30 VAC.
     
  6. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,997

    A fair question is whether it's even worth it to chase down diaphragms, if the valves could be replaced with plastic ones. Some old diaphragm assemblies will cost more than a brand-new valve.
     
  7. irrig8r

    irrig8r LawnSite Platinum Member
    Posts: 4,535

    Yeah, but they might last another 50 years.

    R-Co Parts book shows:

    9000B series, 3/4" to 3". They have a post and coil style solenoid.

    6000D series, 1" and 2". They have a horseshoe shaped solenoid and an upright bleed plug on a raised portion opposite the solenoid. They also have only 4 bolts through the bonnet where the others have 6.

    RCV 170, 3/4", 1" to 2" and 2-1/2" to 3". They have a wingnut style bleed screw set at an angle and a cylindrical solenoid.
     
  8. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 22,064

    I would take a close look at the seats before ordering parts.
     
  9. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,997

    Also look at the seats for the solenoids, as they can erode, and render the valve useless.
     
  10. Dripit good

    Dripit good LawnSite Bronze Member
    Posts: 1,081

    Many times it's best to replace something rather than spinning wheels and taking the time to attempt a repair on something.
     

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