Thread: Nozzle settings

  1. #1
    Forum Member
    hottrotter18's Avatar
    Join Date
    Aug 2009
    Posts
    3

    Default Nozzle settings

    About how much GPM is coming through the nozzle when its set to "flush"?
    "You can only live once, but if you do it right, once is enough"

  2. #2
    Forum Member
    Bones42's Avatar
    Join Date
    Mar 2001
    Location
    Pt. Beach, NJ
    Posts
    10,678

    Default

    What type of nozzle?
    What brand of nozzle?
    What type of hose?
    What size hose?

    Do yourself a favor....borrow a flowmeter and read it.
    "This thread is being closed as it is off-topic and not related to the fire industry." - Isn't that what the Off Duty forum was for?

  3. #3
    Forum Member
    DeputyChiefGonzo's Avatar
    Join Date
    Aug 2000
    Location
    Somewhere between genius and insanity!
    Posts
    13,584

    Default

    Quote Originally Posted by Bones42 View Post
    What type of nozzle?
    What brand of nozzle?
    What type of hose?
    What size hose?

    Do yourself a favor....borrow a flowmeter and read it.
    To add to what Brother Bones stated.. check the nomenclature from the manufacturer.

    PS: re-register to change your screen name. The last "HotTrotter" here was banned and came back as Scarecrow57.. read his posts for incentive to change your name!
    ‎"The education of a firefighter and the continued education of a firefighter is what makes "real" firefighters. Continuous skill development is the core of progressive firefighting. We learn by doing and doing it again and again, both on the training ground and the fireground."
    Lt. Ray McCormack, FDNY

  4. #4
    Forum Member
    FyredUp's Avatar
    Join Date
    Jul 1999
    Location
    Rural Wisconsin, Retired from the burbs of Milwaukee
    Posts
    10,034

    Default

    On the old original Akron Turbojets, the smaller 30-60-95-125gpm ones, we flow tested them and got roughly 150gpm out of them at 100 psi at the nozzle while on flush. More water, but a crappy stream.
    Crazy, but that's how it goes
    Millions of people living as foes
    Maybe it's not too late
    To learn how to love, and forget how to hate

  5. #5
    Forum Member
    FWDbuff's Avatar
    Join Date
    Jul 2003
    Location
    Pee-Ayy!
    Posts
    7,401

    Default

    Use a smoothbore nozzle and you wont have to worry about it.
    "Loyalty Above all Else. Except Honor."

  6. #6
    Forum Member
    nmfire's Avatar
    Join Date
    Nov 2002
    Location
    Maryland (DC Suburb)
    Posts
    5,738

    Default

    Quote Originally Posted by FWDbuff View Post
    Use a smoothbore nozzle and you wont have to worry about it.
    I was going go into this big long thing about this. But I like your summary much better.
    Even the burger-flippers at McDonald's probably have some McWackers.

  7. #7
    Banned

    Join Date
    Jan 2008
    Posts
    8,677

    Default

    Quote Originally Posted by hottrotter18 View Post
    About how much GPM is coming through the nozzle when its set to "flush"?
    That is a great screen name, I wish I had thought of that.

    To answer your question you need to know the pressure

  8. #8
    MembersZone Subscriber
    BULL321's Avatar
    Join Date
    Jun 2007
    Location
    Western, NC
    Posts
    3,428

    Default

    Quote Originally Posted by hottrotter18 View Post
    About how much GPM is coming through the nozzle when its set to "flush"?
    Enough to flush the nozzle, duh!

    Stay Safe
    Bull
    Stay Safe
    Bull


    “Guys if you get hurt, we’ll help you. If you get sick we’ll treat you. If you want to bitch and moan, then all I can tell you is to flick the sand out of your slit, suck it up or get the hell out!”
    - Capt. Marc Cox CFD

    Nothing in life is so exhilarating as to be shot at without result.
    -WINSTON CHURCHILL

  9. #9
    Forum Member

    Join Date
    May 2008
    Location
    Stamford, CT
    Posts
    411

    Default

    Quote Originally Posted by FWDbuff View Post
    Use a smoothbore nozzle and you wont have to worry about it.
    This is the best advice yet

    Quote Originally Posted by nmfire View Post
    I was going go into this big long thing about this. But I like your summary much better.
    Ditto

  10. #10
    Forum Member
    GTRider245's Avatar
    Join Date
    May 2005
    Location
    Augusta,GA
    Posts
    3,059

    Default

    Yes, becuase smooth bore nozzles solve every problem in the fire service.
    Career Firefighter
    Volunteer Captain

    -Professional in Either Role-

    Quote Originally Posted by Rescue101 View Post
    I don't mind fire rolling over my head. I just don't like it rolling UNDER my a**.

  11. #11
    Forum Member
    CaptOldTimer's Avatar
    Join Date
    Jun 1999
    Location
    Virginia
    Posts
    7,239

    Default

    Quote Originally Posted by hottrotter18 View Post
    About how much GPM is coming through the nozzle when its set to "flush"?
    Not too much, enough to flush out the pipe but not enough to have a fire stream and do a lot of firefighting or extinguishment.
    Stay Safe and Well Out There....

    Always remembering 9-11-2001 and 343+ Brothers

  12. #12
    Forum Member
    FyredUp's Avatar
    Join Date
    Jul 1999
    Location
    Rural Wisconsin, Retired from the burbs of Milwaukee
    Posts
    10,034

    Default

    Quote Originally Posted by CaptOldTimer View Post
    Not too much, enough to flush out the pipe but not enough to have a fire stream and do a lot of firefighting or extinguishment.
    WRONG! With most nozzles on flush if the nozzle pressure is maintained at whatever the nozzle calls for 50, 75, or 100 psi, the nozzle will actually flow MORE water than normal. This occurs because the space between the baffle and the nozzle itself increases, sometimes up to almost a half inch. If the correct nozzle pressure is maintained all you have done is make a higher gpm nozzle by increasing the amount of room for the water to exit the nozzle from. What does tend to happen though is the opening may be TOO big and the stream takes on more of a broken pattern than a true combination nozzle pattern.

    How do I know this? Actual field trials using old style Akron Turbojets with the 30-60-95-125 gpm settings. The pattern would be more than adequate for rooms fires fought from the interior. Not such a good deal for reach needed for exterior streams.

    By the way, we achieved flows in the 150 gpm range at 100 psi NP with the nozzle set on flush.
    Crazy, but that's how it goes
    Millions of people living as foes
    Maybe it's not too late
    To learn how to love, and forget how to hate

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. CAFS Settings
    By jandrewsmith in forum The Engineer
    Replies: 6
    Last Post: 11-04-2009, 07:17 PM
  2. ICS in Refineries or Industrial settings
    By Q8fire in forum Industrial Firefighting
    Replies: 5
    Last Post: 02-06-2009, 03:25 PM
  3. Pilot valve/Relief Vlave settings
    By smokeater81 in forum The Engineer
    Replies: 18
    Last Post: 05-27-2003, 06:28 PM
  4. quints in rural settings
    By dtfd262 in forum Apparatus Innovation
    Replies: 23
    Last Post: 02-14-2001, 03:49 AM
  5. relief valve settings
    By ffdoneng62 in forum The Engineer
    Replies: 53
    Last Post: 04-28-2000, 10:44 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Log in

Click here to log in or register