born2dive9702
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Hey guys I am hoping some one can help me out here. I have just completed flow test on my beer tower it is a 4 product tower, 5/16 stainless steel tubes with a 5/16 bore on the shank to a perlick 650ss with flow control. The tower is a glycol cooled unit from micromatic.
I have done testing with various lengths of accuflex ultra 235, 3/16" line from 3 to 50' lengths ranging from 10psi up to 25psi
I have also done testing with accuflex ultra 235 with 1/4" line again from 3 to 50' lengths ranging from 10 psi up to 25 psi.
I have found some strange results and I think it is due to the large bore thru the shank but I want to check with you all.
For the 3/16" line running 15 psi I get a flow rate for 3' of 1.26072oz/sec, 6.5' 1.20589oz/sec 13' 1.02669oz/sec. 19.5' .94375oz/sec, 26' .84232oz/sec, 50' .65274 oz/sec.
For the 1/4" line running 15psi I get a flow rate for 3' of 1.49125oz/sec, 6.5' 1.46542oz/sec, 13' 1.43513oz/sec, 19.5' 1.35062oz/sec, 26' 1.30208oz/sec, and for 50' 1.21418oz/sec.
I have run the test 3 different times the numbers are accurate connected to a Cornelius keg, to the said lines, to the 5/16 lines in the tower to the 5/16 bore.
Now people have been saying that they are having to use 6', 10', @ 13psi of the 3/16 to get a 2oz/sec flow with 3/16" accuflex as it has a resistance of 2.2psi/ foot
Others are who are using the 1/4" are saying that the length needed to get a proper 2oz/sec pour they are having to use 20-30' of 1/4" accuflex to get a proper 2oz/sec flow.
The tower mfg is saying to use a 8' X 5/16" accuflex line to get a 2oz/sec flow which is seeming very likely.
So why are my lower numbers? Are my numbers seeming correct or do they appear low? I am very curious why companies are telling every one to use 3/16 lines for their home systems when lines up to 5/16 seem correct.
I have also tried my perlick 650ss with a 3" thru wall shank with the taps mounted at the same height as my beer tower and while I have not timed them the flow rates seem to be the same. and yes the gauges have been calibrated by Airgas, and the flow controls are full open.
The medium tested was water which should (based on density) affect the flowrate only slightly compared to beer or soft drinks.
Please let me know your thoughts. if my numbers seem to be low and what might be the cause. I suspect it is due to the large bore on the tailpiece/shank.
I have done testing with various lengths of accuflex ultra 235, 3/16" line from 3 to 50' lengths ranging from 10psi up to 25psi
I have also done testing with accuflex ultra 235 with 1/4" line again from 3 to 50' lengths ranging from 10 psi up to 25 psi.
I have found some strange results and I think it is due to the large bore thru the shank but I want to check with you all.
For the 3/16" line running 15 psi I get a flow rate for 3' of 1.26072oz/sec, 6.5' 1.20589oz/sec 13' 1.02669oz/sec. 19.5' .94375oz/sec, 26' .84232oz/sec, 50' .65274 oz/sec.
For the 1/4" line running 15psi I get a flow rate for 3' of 1.49125oz/sec, 6.5' 1.46542oz/sec, 13' 1.43513oz/sec, 19.5' 1.35062oz/sec, 26' 1.30208oz/sec, and for 50' 1.21418oz/sec.
I have run the test 3 different times the numbers are accurate connected to a Cornelius keg, to the said lines, to the 5/16 lines in the tower to the 5/16 bore.
Now people have been saying that they are having to use 6', 10', @ 13psi of the 3/16 to get a 2oz/sec flow with 3/16" accuflex as it has a resistance of 2.2psi/ foot
Others are who are using the 1/4" are saying that the length needed to get a proper 2oz/sec pour they are having to use 20-30' of 1/4" accuflex to get a proper 2oz/sec flow.
The tower mfg is saying to use a 8' X 5/16" accuflex line to get a 2oz/sec flow which is seeming very likely.
So why are my lower numbers? Are my numbers seeming correct or do they appear low? I am very curious why companies are telling every one to use 3/16 lines for their home systems when lines up to 5/16 seem correct.
I have also tried my perlick 650ss with a 3" thru wall shank with the taps mounted at the same height as my beer tower and while I have not timed them the flow rates seem to be the same. and yes the gauges have been calibrated by Airgas, and the flow controls are full open.
The medium tested was water which should (based on density) affect the flowrate only slightly compared to beer or soft drinks.
Please let me know your thoughts. if my numbers seem to be low and what might be the cause. I suspect it is due to the large bore on the tailpiece/shank.
