Problem with a valve

Discussion in 'Irrigation' started by Gorhad, Jul 28, 2010.

  1. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Posts: 5,857

    rip that Sh1t out and put in a GD manifold
     
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,476

    Can't do that - think of the Indexing-Valve industry :)
     
  3. Gorhad

    Gorhad LawnSite Member
    Posts: 75

    Thanks jvanvliet.

    The valve is called a Richdel 205TF solenoid valve. It has a hex head plastic screw on the rhs, the central has a thumb wheel and forward has the solenoid.

    If i unscrew the solenoid slightly then unscrew the hex head screw at the back water flows through. If i screw either the solenoid or hex head screw back in water stops

    The solenoid and controller are both 24volt matched. You can hear/feel the solenoid click.


    Thanks

    irritrol 205tf.jpg
     
  4. Gorhad

    Gorhad LawnSite Member
    Posts: 75

    The local supplier here in Melbourne said if the Diaphragm was bad then i would have a constant flow of water. However thats not really the case in that i can only get water to flow through if i first loosen off the solenoid and then second loosen the hex head screw. I can then hear water flowing through
     
  5. DanaMac

    DanaMac LawnSite Fanatic
    Posts: 13,156

    It will happen both ways. The 205 has a diaphragm with some hard plastic pieces in the center. There is also a screw that holds the hard plastic pieces to the rubber diaphragm. In the older ones the plastic nut and screw would break apart, and the diaphragm WOULD NOT OPEN. We see this happen a lot.
     
  6. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,476

    The local supplier is a piker and a hack :)
     
  7. DanaMac

    DanaMac LawnSite Fanatic
    Posts: 13,156

    Yup, if that was his only advice given.
     
  8. Gorhad

    Gorhad LawnSite Member
    Posts: 75

    So

    If i turn the thumb wheel screw clockwise all the way down is that the off position or on position.

    Where should it be in order to activate the solenoid

    Then the hex head screw at the back what does that do.

    Sorry to be a pain just trying to sort a prob out for a longtime customer/neighbor
     
  9. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,476

    Stop asking questions and buy a new diaphragm for that valve. :nono: Or just buy a complete replacement valve, and replace everything at one time.
     
  10. Gorhad

    Gorhad LawnSite Member
    Posts: 75

    Just learnt that the thumb wheel as i call it is the flow control
     

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