Keene jet sizes
Welcome guest, is this your first visit?
Member
Discoveries
 
Results 1 to 15 of 15
Like Tree1Likes
  • 1 Post By omnicron

Thread: Keene jet sizes

« Prev Thread | Next Thread »
  1. #1

    Dec 2012
    Murfreesboro tn
    1,035
    256 times
    Prospecting
    anybody know what the 3 different jet sizes keene uses in there jets ? Thanks
    It's better to be hated for who you are than loved for who your not!

  2. #2
    us
    Jun 2012
    Caldwell, Idaho
    1,017
    410 times
    Prospecting
    1/2, 3/4 and 1"?

  3. #3

    Dec 2012
    Murfreesboro tn
    1,035
    256 times
    Prospecting
    Quote Originally Posted by omnicron View Post
    1/2, 3/4 and 1"?
    U sure omni?
    It's better to be hated for who you are than loved for who your not!

  4. #4
    us
    Jun 2012
    Caldwell, Idaho
    1,017
    410 times
    Prospecting
    Well I spent a whole day researching Venturi's for the jet I made and what I found is its 25% or your suction hose size. 3" is 3/4, 4"@1". Not 100% positive with Keene's jets but when you do the research you come up with the same solution. Maybe call them tomorrow and talk to mark. Its also inside diameter not od..
    russau likes this.

  5. #5

    Dec 2012
    Murfreesboro tn
    1,035
    256 times
    Prospecting
    Quote Originally Posted by omnicron View Post
    Well I spent a whole day researching Venturi's for the jet I made and what I found is its 25% or your suction hose size. 3" is 3/4, 4"@1". Not 100% positive with Keene's jets but when you do the research you come up with the same solution. Maybe call them tomorrow and talk to mark. Its also inside diameter not od..
    Is this 25% of the volume of the Surface area ? I believe it is and should be figured using the formula pi=r2 or pi = r squared..
    Not the simple math of 25% of 4 or 6...
    Asking not telling ya
    It's better to be hated for who you are than loved for who your not!

  6. #6
    us
    Jun 2012
    Caldwell, Idaho
    1,017
    410 times
    Prospecting
    I did lots of reading, fiddled with the math (for me math sucks, it took me 3 times to pass algebra in college) (x=y+zmyass) I also reread a chapter on fluid dynamics in one of my text books. My head was throbbing by the end of the day. I compared what I came up with to keene and proline.
    Both keene's and prolines 3" and 4" jets are 3/4" (3") and 1"(4"). It's not 25% of the area....if it was a 3" jet would have a 1.7" inducer...4" would be 3.14" and a 6" would need 7"

    Bernoulli's principle - Wikipedia, the free encyclopedia

    Water eductor - Wikipedia, the free encyclopedia

    Injector - Wikipedia, the free encyclopedia

  7. #7
    us
    Jun 2012
    Caldwell, Idaho
    1,017
    410 times
    Prospecting
    Forgot these

    Venturi effect - Wikipedia, the free encyclopedia

    Pascal's law - Wikipedia, the free encyclopedia

    Don't forget Pascal's law. You'll understand why I went with 8 jets. These jets are basically like hydraulic rams.

  8. #8
    us
    Rob

    Oct 2012
    Kingfield, Maine
    316
    240 times
    All Types Of Treasure Hunting
    I have a Keene 2" log and the orifice is more in the range of 5/8 instead of 1/2. Couldn't get a perfect measurement since I didn't have a 5/8 dowel or something of perfect size to try but a 1/2 dowel had play and this jet is not worn. Unfortunately I don't have any larger Keene jets to compare directly. The basic formula's are good starting points 1/4 the diameter (1/16th the area). As Omni points out, It is the hydraulic ram effect throughout the entire area of the jet's outlet that is one of the improvements in multiple jets. Great info Omni!

  9. #9
    us
    retired bumb and part time Hobo

    May 2005
    St. Louis, missouri
    6,082
    4812 times
    I was always told that the log must match the pump to work the best. im not saying that these posts are wrong but not any ole pump/log will work on this principle!

  10. #10
    us
    Mar 2003
    Redding,Calif.
    5,854
    6705 times
    All Types Of Treasure Hunting
    DO NOT FORGET that the jets are cut at a angle and the side showing is NOT the true size of the jet as cut radically inside also, tapered cut. Thats Radius squared x PI = 1" inductor=.5 x .5 x 3.14=.785 square inches. This is where science and practical application do NOT mix well as 100s of factors not figured in-for every action their is a equal or greater reaction to said stimulis. Now thats a jet as all factors matter extremely from inductor size,to angles they fabbed,to length of jet,size of flair,depth in the water,angle of induction into header and on and on and on. A dredge is not that hard to make but good dredge IS A LOT OF WORK. Remember even Einsteins therory of relativity is absolutely unrefutably been proven wrong. Build that thang and get it on as times a wastn' and you'll be modifying for years to come--so much fun-John

  11. #11

    Dec 2012
    Murfreesboro tn
    1,035
    256 times
    Prospecting
    Quote Originally Posted by Hoser John View Post
    DO NOT FORGET that the jets are cut at a angle and the side showing is NOT the true size of the jet as cut radically inside also, tapered cut. Thats Radius squared x PI = 1" inductor=.5 x .5 x 3.14=.785 square inches. This is where science and practical application do NOT mix well as 100s of factors not figured in-for every action their is a equal or greater reaction to said stimulis. Now thats a jet as all factors matter extremely from inductor size,to angles they fabbed,to length of jet,size of flair,depth in the water,angle of induction into header and on and on and on. A dredge is not that hard to make but good dredge IS A LOT OF WORK. Remember even Einsteins therory of relativity is absolutely unrefutably been proven wrong. Build that thang and get it on as times a wastn' and you'll be modifying for years to come--so much fun-John
    well I was gona have glen oats build a infinity jet john be I can't get ahold of him anymore... I really don't want to mess with it ...but it seems I have no choice...
    It's better to be hated for who you are than loved for who your not!

  12. #12
    us
    Rob

    Oct 2012
    Kingfield, Maine
    316
    240 times
    All Types Of Treasure Hunting
    Good points John. On the 2" jet I was trying to take the measurement at the maximum restriction point (jet orifice) internal to the casting before the orifice expands back out. With a 1/2 dowel I appeared to have about 1/16 of play all the way around the dowel. This matches up with some throughput tests of jet volume I did last summer with 50psi supplied and 80gpm through this jet which is what a 5/8 orifice would provide. Does anyone have a larger Keene jet they can give feedback on to G1?

  13. #13

    Dec 2012
    Murfreesboro tn
    1,035
    256 times
    Prospecting
    Quote Originally Posted by Timberdoodle View Post
    Good points John. On the 2" jet I was trying to take the measurement at the maximum restriction point (jet orifice) internal to the casting before the orifice expands back out. With a 1/2 dowel I appeared to have about 1/16 of play all the way around the dowel. This matches up with some throughput tests of jet volume I did last summer with 50psi supplied and 80gpm through this jet which is what a 5/8 orifice would provide. Does anyone have a larger Keene jet they can give feedback on to G1?
    will soon but mine is at the shop waiting on new tubbing ..
    I really want to do a quad or something like a infinity ..I just don't have the time right now! Work is really busy and if I don't stay on it I won't have time for nome this summer ..
    It's better to be hated for who you are than loved for who your not!

  14. #14
    us
    Mar 2003
    Redding,Calif.
    5,854
    6705 times
    All Types Of Treasure Hunting
    Hope Glen is OK(thats Oates with a e)---please follow up and see --great fabman,miner and advocate just hope he's busy as usualJohn

  15. #15

    Dec 2012
    Murfreesboro tn
    1,035
    256 times
    Prospecting
    Quote Originally Posted by Hoser John View Post
    Hope Glen is OK(thats Oates with a e)---please follow up and see --great fabman,miner and advocate just hope he's busy as usualJohn
    i know he's working on a new dredge and hovercraft he may be too busy to get to it ...iv sent him pm and a email but not herd anything back it's been a week . I have no other way to get I touch with him..
    He'll maybe I said something the pissed him off ! I hope not
    It's better to be hated for who you are than loved for who your not!

 

 

Sponsored Links

Posting Permissions

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

Similar Threads

  1. Coil sizes on AT Gold
    By pistol-pete in forum Garrett
    Replies: 7
    Last Post: Nov 07, 2013, 07:55 AM
  2. classifier and screen sizes
    By stilllookin in forum Sluicing
    Replies: 10
    Last Post: Sep 26, 2012, 11:25 PM
  3. KRF scrapers different sizes
    By larson1951 in forum North American Indian Artifacts
    Replies: 4
    Last Post: Mar 22, 2010, 07:49 AM
  4. Have you ever wondered about Bra Sizes?
    By stefen in forum Comedy Central
    Replies: 6
    Last Post: Jul 11, 2008, 07:11 AM
  5. help with picture sizes
    By joey in forum Tech Talk
    Replies: 2
    Last Post: Apr 09, 2005, 07:57 AM

Search tags for this page

infinity jet

Click on a term to search for related topics.
Powered by vBadvanced CMPS v4.3.0