View Full Version : Recommend a flow meter?
jmilcher
03-24-2007, 09:52 PM
Before anyone says I do not need one yada yada, this is for a customer who will suffice without one,
So far its a 1/2" setup, can someone recommend a certain meter and let me know why?:toast:
serialk11r
03-24-2007, 10:02 PM
You want to constantly measure flow or something?
Spawne32
03-24-2007, 10:06 PM
yes please, preferably somthing that will fit in a 3.5 floppy bay so that i can monitor from the front.
serialk11r
03-24-2007, 10:08 PM
If you don't need to constantly monitor, then its easy ;)
Get a tub or something, and have your pump suck out of it, and see how long it takes to fill your res up, or just a half gallon orange juice carton.
Spawne32
03-24-2007, 10:20 PM
If you don't need to constantly monitor, then its easy ;)
Get a tub or something, and have your pump suck out of it, and see how long it takes to fill your res up, or just a half gallon orange juice carton.
no, we want sexy lights and flashy gizmos
Cupcake
03-24-2007, 10:25 PM
im not sure anyone makes one
Im sure you could make your own if you are willing
jaguarking11
03-25-2007, 01:26 AM
I have been working on a 3/4 id design for a couple of months now. Honestly I find it cheaper to get a prebuilt one. Cost of production for a large one thats accurate enough is pretty high. I may have something built by mid sumer if I find a good machinist.
I have also getoe rigged a unit together that actually flowed really nice with an old fan a few fittings and a gasket. If you cover the magnet in resin then get a hall sensor and wire it up it will give you rpm. Then you can test flow by timing it or pumping through another flow meter to determine rpm vs l/m
Geto rigging one cost me about 12bux in parts and 2hours of build time. but its big and not very practical. Also depending on th bearings you can have issues down the line as well as clogging issues.
EDIT: I have a nice little unit in my rig that I got as a review sample. The work log is in my signature and take a look. But I warn you its id is 3/8 or less effectively slowing flow.
Hellemyr
03-25-2007, 05:51 AM
Thermaltake have flow meters
Like this http://www.thermaltake.com/product/Liguid/Upgrade/cl-w0012/cl-w0012.asp
And this http://www.thermaltake.com/product/Liguid/Upgrade/cl-w0032/cl-w0032.asp
Fossil
03-25-2007, 06:08 AM
Oooh! Their wonderful product looks like it's made of anodized Alu. Now... it doesn't say so anywhere, though they do say so for the water tank, and they look like they're made of the same material.
Thermaltake you've done it again!
Their 3/4" connectors aren't horribly restrictive, unless they're the ones that connect to the 'industrial rubber tubing' for their waterblocks, in which case they are horribly restrictive, but that Alu is a deal breaker for the vast majority of loops, which will be copper.
I have a pile of their junk abandoned in a box. Most recent purchase was an 'aqua brazing' cpu block, which I got for the backplate. Though it can theoretically use 3/4" tube, the inner diameter of the 3/4" connectors goes down to about 3mm, and the inlets to the block are also very narrow. Presumably, it's full of pins in there with no aquafoils, and generates a fair amount of additional restriction, but I've never hooked one up to a pump to find out.
Anyway, their flow meter is just an indicator, not a 'meter' as such, which is what I think the poster had in mind.
Alpha cool do something thats small and can pop into the line. Little red, black, blue or soemthing like that spining wheel.
Edit:
Here is the Alphacool stuff i said about (http://www.alphacool.de/index.php/cPath/5_270_55/category/flow-indicator.html)
I'm using a presure gauge to tell mines running for flow and presure. This will be done X 6
http://img.photobucket.com/albums/v604/corsapete/IMG_0116.jpg
Thats the test rig with the new fittings. I know the guages work but this is to test with the new fittings
KaptCrunch
03-25-2007, 06:23 AM
http://img.photobucket.com/albums/v604/corsapete/IMG_0116.jpg
good going pete
i see sweat/air bubbles on the suction tube, have turned the rad with bard's up to let the air lock out
Nope the moister on that hose is me blowing into it to check the fittings on the Tee where sealed. No water in there yet as i wont test it till tormrow now.
The sodding BST time chnage has messed me up pretty bad as weekend has been a bit of a bender the the clock forward an hour
Edit:
I got bord of waiting!!!
http://img.photobucket.com/albums/v604/corsapete/IMG_0120.jpg
http://img.photobucket.com/albums/v604/corsapete/IMG_0118.jpg
I'm not overly impressed but i can tell my 6 pumps are running now!
I need a res really for when i do bench tests like this. The rad is not the best thing to use nor fill but meh it does.
If i make the tubing dia smaller on any part of the pumps outlet after the gauge to the blocks inlet presure does go up! How ever seams in a closed loop it's smaller!
I also have confermed what i though is casuing all the pump noise too.
Pete
Allsorts
03-25-2007, 09:25 AM
Nice job Pete! :clap: What type of connectors have you used to route the pressure gauge to the T-piece?
I really don't want to spam or steal this topic.
I have a G1/4'' 8mm push fitting, 8mm hose, G1/8'' 8mm push fitting to a G1/8'' sleave which goes into the gauge. All PTFE taped to seal up.
Fittings on the push fittings are made FESTO. Comen in food MFG and are for phnumatics, lubs, chemicals and stuff. Seams to work for water fine as you can see
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