Flowmeter

Zhentar · 08-13-2003, 02:31 PM

I've got some spare money in my paypal account so I thought I'd look at some flowmeters on ebay. This one caught my eye for about $20-

http://www.kinginstrumentco.com/7520...7520_7530.html

I think they've got the 7530 5C-08. One thing I can't find on it is the pressure drop. Anyone know where I could find it? and whether or not its a good flowmeter?

pHaestus · 08-13-2003, 05:44 PM

Zhentar:

I have a King Instruments flowmeter at the house that I actually am looking to sell (interested?). It still has the manual; I'll see if it has a curve for head loss on it today.

Zhentar · 08-14-2003, 08:54 PM

I'd also like to set up an CPU thermal diode reader for my t-bred b, what should I do for that?

Or does the epox 8rda+ actually read the thermal diode? I remember reading that it doesn't, but I'm not sure.

BrianW · 08-14-2003, 09:25 PM

I found a pretty good buy on ebay. Here is the manufactures spec sheet. How does that head loss chart look?

http://www.hedland.com/resources/pro...-5vertical.pdf

BrianW

Zhentar · 08-14-2003, 09:41 PM

It looks pretty nice; it looks like about 3' head loss at 4 GPM.

The only thing I don't like is that it only goes to 4 GPM; my pump gets that at 5' head. of course, if I run it looped with my system I'll get more than 5' head loss, but still I'd rather it at least went to 5 or 6.

I'll have to see what I think of pHaestus', $10 is a pretty good price though.

BrianW · 08-14-2003, 10:19 PM

The model I was looking at had 1-7 GPM ratio. Should be perfect.

Parts:

Heatercore: Fedco # 2-354 (Two Pass radiator with some big dimensions : fin area 12.125*7.875 = approx. 95 sqr" * 2" depth = approx 190 in^3)

Pump: Iwaki 15RT - Japanese version

CPU: White Water Poly Top - 1/2" Barbs

GPU: Dangerden New GPU block - 1/2" Barbs

NB: Dangerden Z block - 1/2" Barbs

Flowmeter: May put the above mentioned flow meter, comes with 3/4" Brass Sweat connector. Yeah bust out the torch....

Tubing: 1/2" and 5/8" ID. Not sure of make or type. Currently using Silicon, and am real happy save the clarity.

Reservoir: Square with 1/2" female NPT threads. 2 X 1/2" Nipples (Return), 1 X 5/8" Nipples(Out to pump)

Flow Path

Reservoir>>5/8" ID Tubing>>Pump >>5/8" ID Tubing>>Flow Meter>>5/8" ID Tubing>>Heater Core>>1/2" ID Tubing>>White Water>>Split Flow>>a,b

a) White Water>>1/2" ID Tubing>>GPU>>1/2" ID Tubing>>Reservoir.

b) White Water>>1/2" ID Tubing>>NB>>1/2" ID Tubing>>Reservoir.

What do you think? Is it worth knowing flow rate, if your head loss is increased? It would be a "cool" item to have in the case.

BrianW

Zhentar · 08-14-2003, 10:29 PM

I think they probably cause too much head loss to leave in permanently. I figured what I'd do would be set up a manometer to figure out the pressure drop of my whole system. then take apart my system and put in a valve and the flowmeter in there; use the manometer to set up the valve to get the pressure right.

It would be nice to leave it in all the time, but 3' head loss is a lot.

BrianW · 08-14-2003, 10:36 PM

Yeah that is what I was thinking. Would be cool for testing and such. Any other thoughts?

BrianW

Zhentar · 08-14-2003, 11:26 PM

umm... one interesting thing to test would be how much the flowmeter hurt your flow

maybe with that pump running it full time wouldn't be a problem. at least checking would be interesting.

brucoman · 08-15-2003, 12:28 PM

Locate a magnetic flowmeter with at least a .4" tube. You will be SO happy you did. Then you can wire a relay to the alarm outputs to either light up the room or trip your system if flow is reduced too much.

pHaestus · 08-15-2003, 01:22 PM

These bell or barrel type flowmeters have a BIG pressure drop across them; definitely for testing out different block designs at 0.5-1.5GPM and not for plumbing into a regular cooling loop. I just looked at the sheet that came with my King Instruments flowmeter and it was absolutely no help as far as pressure drop goes. Just has a lot of info on how to properly plumb and place them.

The one I have is from mcmaster-carr. I used it probably 10 times and then it went on a shelf as I got a nicer paddlewheel type that is digital and with much better accuracy. It has 1/2" NPT fittings on both ends and has 0.4-5GPM markings in 0.2GPM increments. Not great, but worked ok for being able to test different blocks at close to the same flow rates.

Zhentar · 08-15-2003, 02:11 PM

I'm guessing a paddle-wheel digital flowmeter is considerably more expensive... but how much more?

08-13-2003, 02:31 PM	#1
Zhentar Cooling Savant Join Date: Apr 2003 Location: Madison, WI Posts: 225	Flowmeter I've got some spare money in my paypal account so I thought I'd look at some flowmeters on ebay. This one caught my eye for about $20- http://www.kinginstrumentco.com/7520...7520_7530.html I think they've got the 7530 5C-08. One thing I can't find on it is the pressure drop. Anyone know where I could find it? and whether or not its a good flowmeter?

08-14-2003, 09:25 PM	#4
BrianW Cooling Savant Join Date: Jun 2001 Location: Desert City in California Posts: 631	I found a pretty good buy on ebay. Here is the manufactures spec sheet. How does that head loss chart look? http://www.hedland.com/resources/pro...-5vertical.pdf BrianW __________________ Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core \| Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose). Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently. Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)

08-14-2003, 10:19 PM	#6
BrianW Cooling Savant Join Date: Jun 2001 Location: Desert City in California Posts: 631	The model I was looking at had 1-7 GPM ratio. Should be perfect. Parts: Heatercore: Fedco # 2-354 (Two Pass radiator with some big dimensions : fin area 12.1257.875 = approx. 95 sqr" 2" depth = approx 190 in^3) Pump: Iwaki 15RT - Japanese version CPU: White Water Poly Top - 1/2" Barbs GPU: Dangerden New GPU block - 1/2" Barbs NB: Dangerden Z block - 1/2" Barbs Flowmeter: May put the above mentioned flow meter, comes with 3/4" Brass Sweat connector. Yeah bust out the torch.... Tubing: 1/2" and 5/8" ID. Not sure of make or type. Currently using Silicon, and am real happy save the clarity. Reservoir: Square with 1/2" female NPT threads. 2 X 1/2" Nipples (Return), 1 X 5/8" Nipples(Out to pump) Flow Path Reservoir>>5/8" ID Tubing>>Pump >>5/8" ID Tubing>>Flow Meter>>5/8" ID Tubing>>Heater Core>>1/2" ID Tubing>>White Water>>Split Flow>>a,b a) White Water>>1/2" ID Tubing>>GPU>>1/2" ID Tubing>>Reservoir. b) White Water>>1/2" ID Tubing>>NB>>1/2" ID Tubing>>Reservoir. What do you think? Is it worth knowing flow rate, if your head loss is increased? It would be a "cool" item to have in the case. BrianW __________________ Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core \| Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose). Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently. Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)

08-14-2003, 10:36 PM	#8
BrianW Cooling Savant Join Date: Jun 2001 Location: Desert City in California Posts: 631	Yeah that is what I was thinking. Would be cool for testing and such. Any other thoughts? BrianW __________________ Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core \| Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose). Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently. Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)

08-13-2003, 05:44 PM	#2
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	Zhentar: I have a King Instruments flowmeter at the house that I actually am looking to sell (interested?). It still has the manual; I'll see if it has a curve for head loss on it today.

08-14-2003, 08:54 PM	#3
Zhentar Cooling Savant Join Date: Apr 2003 Location: Madison, WI Posts: 225	I'd also like to set up an CPU thermal diode reader for my t-bred b, what should I do for that? Or does the epox 8rda+ actually read the thermal diode? I remember reading that it doesn't, but I'm not sure.

08-14-2003, 09:41 PM	#5
Zhentar Cooling Savant Join Date: Apr 2003 Location: Madison, WI Posts: 225	It looks pretty nice; it looks like about 3' head loss at 4 GPM. The only thing I don't like is that it only goes to 4 GPM; my pump gets that at 5' head. of course, if I run it looped with my system I'll get more than 5' head loss, but still I'd rather it at least went to 5 or 6. I'll have to see what I think of pHaestus', $10 is a pretty good price though.

08-14-2003, 10:29 PM	#7
Zhentar Cooling Savant Join Date: Apr 2003 Location: Madison, WI Posts: 225	I think they probably cause too much head loss to leave in permanently. I figured what I'd do would be set up a manometer to figure out the pressure drop of my whole system. then take apart my system and put in a valve and the flowmeter in there; use the manometer to set up the valve to get the pressure right. It would be nice to leave it in all the time, but 3' head loss is a lot.

08-14-2003, 11:26 PM	#9
Zhentar Cooling Savant Join Date: Apr 2003 Location: Madison, WI Posts: 225	umm... one interesting thing to test would be how much the flowmeter hurt your flow maybe with that pump running it full time wouldn't be a problem. at least checking would be interesting.

08-15-2003, 12:28 PM	#10
brucoman Cooling Savant Join Date: May 2003 Location: Midwest Posts: 157	Locate a magnetic flowmeter with at least a .4" tube. You will be SO happy you did. Then you can wire a relay to the alarm outputs to either light up the room or trip your system if flow is reduced too much.

08-15-2003, 01:22 PM	#11
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	These bell or barrel type flowmeters have a BIG pressure drop across them; definitely for testing out different block designs at 0.5-1.5GPM and not for plumbing into a regular cooling loop. I just looked at the sheet that came with my King Instruments flowmeter and it was absolutely no help as far as pressure drop goes. Just has a lot of info on how to properly plumb and place them. The one I have is from mcmaster-carr. I used it probably 10 times and then it went on a shelf as I got a nicer paddlewheel type that is digital and with much better accuracy. It has 1/2" NPT fittings on both ends and has 0.4-5GPM markings in 0.2GPM increments. Not great, but worked ok for being able to test different blocks at close to the same flow rates.

08-15-2003, 02:11 PM	#12
Zhentar Cooling Savant Join Date: Apr 2003 Location: Madison, WI Posts: 225	I'm guessing a paddle-wheel digital flowmeter is considerably more expensive... but how much more?

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