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Why not use VAN nozzles????

Discussion in 'Irrigation' started by Green Sweep, Apr 1, 2006.

  1. Green Sweep

    Green Sweep LawnSite Senior Member
    Male, from Pittsburgh, PA
    Posts: 322

    I started up a Bob Evan's restaurant on Friday. This system was installed last year by a competitor. This guy actually does a real nice job on head placement, spacing, zoning, etc. The plumbing connection was up to code & proper, the controller was mounted neatly along with a zone chart. My only complaint was his nozzling of heads. There was no rhyme or reasoning to his rotor nozzles. He had some 90 deg heads as 3.0 & with 180 deg. heads with 2.0's. Matched precipitation? It looked as if he just grabbed the heads out of the truck without looking at GPM's.
    My biggest complaint was his pop up head nozzles. Every window at the restaurant was getting DOUSED until I had the opportunity to change nozzles or deflect them. Every nozzle on this 14 zone system was a RB 10H, or a RB 10Q. There are so many circular & curved beds and the 10H's were just over spraying everywhere including onto vehicles & patrons, and the 10Q's were missing plants. WHY NOT USE RAIN BIRD VANS?? Is this not precisely what they were designed for? In talking other irrigation contractors, VAN nozzles is almost a bad word. Do you guys use VAN's, or Toro or Hunter's equivalent. If not, why???

  2. NC_Irrigator

    NC_Irrigator LawnSite Bronze Member
    from NC
    Posts: 1,415

    Bad word? ive had good success with van's.

    As far as the window seals go- sometimes you can just tone down the nozzle without having to replace them by using the adjustment screw

    I havent had much luck with toro adjustables, toro fixed nozzles either. I installed them for 10 years and got fed up with them.
  3. Beartooth

    Beartooth LawnSite Member
    Posts: 209

    We use both Rain Bird VAN's and Irritrol. Irritrol makes the best nozzle on the market. You have to try them.
  4. sildoc

    sildoc LawnSite Silver Member
    Posts: 2,925

    Vans are all I have ever used. When you figure out how many stinking nozells you need to carry it is just easier to carry the assortment of vans that you can adjust to the exact angle. It saves time in the long run.
  5. troc

    troc LawnSite Member
    Posts: 19

    I've had good success with VAN's also. I love being able to put the water exactly where I want.

    I do know an irrigation guy who refuses to use them. He swears a 10 VAN at 180 degrees puts out way more water than a 10H.
    I believe the screen you use makes a big difference. He may be right if he's using improper screens but I believe the specs in the book match up exactly when you compare.

    Even if there is truth to his reasoning I would gladly give up that extra head per zone if I could get more control.
  6. Keith

    Keith LawnSite Gold Member
    Posts: 3,977

    Heck, I use VANs all the time. They are a great problem solver. I often use them in places where a Q or H would work fine. I can't say that I have had any real problems out of them.
  7. Dirty Water

    Dirty Water LawnSite Fanatic
    Posts: 6,799

    Vans work great for between 30 or so degree's and 180...In my opinion 270's look crappy and its better to use a TQ nozzle, same with 360's.

    They also clog easier, we use the finer filter (blue)
  8. AssuredServicesCo

    AssuredServicesCo LawnSite Member
    Posts: 113

    We use VANS in odd shaped areas where fixed pattern nozzles will not work. VANS do have greater precipitation rates than the same throw of an MPR nozzle but sometimes you have to use them. That's what thy're there for.
    If you have really curved beds sometimes microsprays are better.
  9. DanaMac

    DanaMac LawnSite Fanatic
    Posts: 13,156

    I do not like using the VAN nozzles. They use more water than a fixed spray nozzle - I don't care what the charts say, they do. I've changed out zones with all VANs that weren't working well, to fixed nozzles, and the heads would finally pop up all the way and spray the intended distance. The zones were still a little stretched, but changing the nozzles allowed them to work.

    The spray pattern also gets distorted easier on the VANs. Just opening and closing the collar seems to clear it up, but I shouldn't need to do that.
  10. I don't like the spray pattern of VANs..but I do use them when necessary. I prefer a fixed pattern nozzle over any variable arc nozzle.....for the reasons suggested by Dana.....poor spray pattern, higher gpm.....

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