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Thread: Orifice size

  1. #1

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    Orifice size

    I know an electric pressure washer you want to use a 1.1 orifice size foam cannon, but what about a gas pressure washer what size orifice do you use with a foam cannon ?

  2. #2
    dansautodetailing.com Stokdgs's Avatar
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    Re: Orifice size

    Dynoguy --

    I do not use Foaming in my Shop, but I do know about pressure washers..
    Gas or electric the amount of pressure, (psi) pounds per square inc, and gpm (gallons per minute) is all you need to know.. Well, and of course, how to use the machine..

    If you know the pressure of the machines and gpm, and can get them as close as possible, if this is where you want to keep and use the machine, then that is all you need to do, match both numbers as close as possible..

    I don`t know of many electric pressure washers that go much beyond 1500-1600 psi, while gas powered ones can go way past that number and of course be more dangerous to use for cleaning, if not experienced, etc..

    The gallons per minute (gpm) number means just that - how many gallons of water per minute is going to flow through that orifice tip at the pressure (psi) number...

    Of course, the more gpm the more quickly, efficiently, you can go, but again, at higher pressures, you have to be really careful and never hold anything really powerful up really close to a painted surface - ANY painted surface..

    We can talk about the tips on the end of the pressure washer wand if you want to..
    Dan F

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    Re: Orifice size

    It is a Landa Pressure Washer it has a 5 H.P. Honda motor on it, however it does not give a PSI or GPM so I have no idea what orifice to try.

  4. #4
    dansautodetailing.com Stokdgs's Avatar
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    Re: Orifice size

    Quote Originally Posted by Dynoguy View Post
    It is a Landa Pressure Washer it has a 5 H.P. Honda motor on it, however it does not give a PSI or GPM so I have no idea what orifice to try.
    There should be a label on there somewhere that has the Part Nbr of the unit.. Did you find it ??

    I went to the landa dot com website and found many listed by part nbr..

    Bet if you contact them (landa dot com) with the part nbr or serial nbr perhaps, they can probably tell you the specs of that unit.. They might even have knowledge of foaming tips for that pressure wand tip..

    From the list I saw on their website, the smallest one that fits your description is 2700psi at 3gpm..

    Good luck with this !
    Dan F

  5. #5

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    Re: Orifice size

    I finally got the specs on my pressure washer it is 3300 PSI and has 2.3 GPM what orifice size do you recommend ? I have a 1.1 but that is to small, it was for my electric pressure washer.

  6. #6

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    Re: Orifice size

    The 1.25mm orifice will be perfect for you.
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