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Thread: PSI and GPM???

  1. #11
    UAMCC Contractor Member Lightning Gene's Avatar
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    Default Re: PSI and GPM???

    " THE HOME OF FOAM "
    Lightning Clean Pressure Washing
    Gene Fivel Owner
    979-272-1146 - 979-412-1294
    Bryan/College Station Texas

  2. #12
    UAMCC Contractor Member
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    Feb 2009
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    Warwick NY
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    Default Re: PSI and GPM???

    Justin,

    If your supplier does not know this, I'd be real careful with whatever else they say.
    Doug Tripp
    Valley Mobile Cleaning, Inc
    845 544 3645

  3. #13
    Banned
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    Default Re: PSI and GPM???

    Good set of Charts. Not everyone knows about this page. Allot of information Gene. Been waiting for someone to refer to it .

    This information will answer allot of questions.

  4. #14
    Junior Member Justin's Avatar
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    Default Re: PSI and GPM???

    Thanks, This is great info has cleared up alot.
    Southeastern Pro Wash L.L.C.
    Southeastern Louisiana
    (985)981-1701

  5. #15
    Junior Member
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    Default Re: PSI and GPM???

    Quote Originally Posted by John Orr View Post
    The color of the tip only denotes the spray angle. Red = 0 deg, yellow = 15 deg, green = 25 deg, white = 40 deg. The psi is regulated by the orifice size for any given tip. A typical white tip for a 3500 psi/4 gpm pwer would be 40040 or possibly 4040. The first 40 is the angle and the last numbers are the actual size of the tip - in this case 04.0 or 4.0. Tips come in many sizes, in fact, many times I will use a 40120 (40 deg and 12.0 size) to lower the pressure without lowering the gpms. Hope this helps.

    It does help a lot so thank you and thanks guys for the charts, too. I just pulled two different sets of tips I bought at seperate times last year and, indeed, they are different orifice sizes.
    Greg Mack
    Mack Painting, Inc.
    www.mackpainting.com

  6. #16
    UAMCC Charter Member
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    Default Re: PSI and GPM???

    Bob W. helped me with this very issue in December. He walked me through identifying the right tips to help tame the beast I bought from him to do lower pressure washing.
    _____________

    Scott Burt
    Topcoat Finishes, Inc.

  7. #17
    Junior Member
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    Default Re: PSI and GPM???

    Hi,

    You can't really say. The flow rate (perhaps measured in gallons per minute) depends on the details of the entire plumbing system between where the pressure is applied and the exit. When I say details it means thing like the total length of pipe, the internal roughness of the pipe (which changes over time) and even how many bends and how they are laid out in the pipe.

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  8. #18

    Default Re: PSI and GPM???

    [QUOTE=danial;43520]Hi,

    You can't really say. The flow rate (perhaps measured in gallons per minute) depends on the details of the entire plumbing system between where the pressure is applied and the exit. When I say details it means thing like the total length of pipe, the internal roughness of the pipe (which changes over time) and even how many bends and how they are laid out in the pipe.

    _______________________________________________

    Access to our user friendly database,Ability to change your trades and distance preferences in your profile,50+ REO property

    preservation companies to work with (private list)
    for more details,[QUOTE]

    spam
    John Doherty
    Garden State Mobile Wash, LLC

    Commercial and Residential Pressure Washing Companies Offering Cleaning
    of Roofs and House Washing Services.

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