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4mm ID Beer Line (EVABarrier)

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Cavpilot2000

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I'll have experience with it once I hook mine up tonight. It has resistance of something like 2.8 per foot. My calculator says just short of 4 feet for 38 degrees at 11 psi.
 

Robert65

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ZmannR2

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Wow so it looks like Bobby is pretty far off on his recommendation of 7.8 ft
 

day_trippr

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Hmm...I was afraid of this, given Solty's calculator recommendation...
 
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ZmannR2

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it seems so far that leaving the roughness set at the default setting for vinyl works.
These hoses have a "slick liner" so I'm sure it's a bit smoother.....wonder if we can find out the exact number
 

fetidpants

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These hoses have a "slick liner" so I'm sure it's a bit smoother.....wonder if we can find out the exact number
Which roughness do you recommend using in the calculator for EVAbarrier 4mm instead of vinyl tubing (e=0.000016 [ft])?
Thanks!
 

LarMoeCur

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I've used the 4mm in the past. Really good tubing but my one issue with the 4mm is when you stretch it over the 1/4 barbs it likes to split. I split it a half dozen times before I got it on all my fittings. Small pain to pull the tubing off and cut the spit off then start over. However, I have sense switch to the 5mm which is closer to 3/16 in size. You still have to stretch it over the barbs but no splitting. You do lose some wall thickness. I'd rather lose wall thickness then a keg of beer from a line split.

5/32=3.968mm
3/16=4.762mm
1/4=6.35mm
 

Bobby_M

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I've used the 4mm in the past. Really good tubing but my one issue with the 4mm is when you stretch it over the 1/4 barbs it likes to split. I split it a half dozen times before I got it on all my fittings. Small pain to pull the tubing off and cut the spit off then start over. However, I have sense switch to the 5mm which is closer to 3/16 in size. You still have to stretch it over the barbs but no splitting. You do lose some wall thickness. I'd rather lose wall thickness then a keg of beer from a line split.

5/32=3.968mm
3/16=4.762mm
1/4=6.35mm
I've never split 4mm when using heat. I'd rather run 5 feet of 4mm than 12 feet of 5mm.
 

LarMoeCur

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I've never split 4mm when using heat. I'd rather run 5 feet of 4mm than 12 feet of 5mm.
I soaked the tip in near boiling water (ouch) and I still managed to split them. But then again, I've never had a delicate touch when in come to these things. How my Kezzer is set up, I've always ran 10ft of tubing. I haven't seen any difference in 10ft of 4mm over 5mm. Now you got me wondering!?! Let me pour a pint and reflect.
 

Bobby_M

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I soaked the tip in near boiling water (ouch) and I still managed to split them. But then again, I've never had a delicate touch when in come to these things. How my Kezzer is set up, I've always ran 10ft of tubing. I haven't seen any difference in 10ft of 4mm over 5mm. Now you got me wondering!?! Let me pour a pint and reflect.
That's probably too hot. It softens at about 140F. I'm not sure if the plastic gets damaged at hotter temps.
 
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9.8 feet (1/4 roll) is too long for my kegerator with tower. 5.5 is too short. Soon, I'll find the right length. I haven't split any ends yet - might have lost some hair though. I have to wonder how one length can work for both a lightly carbed stout and also a lager with more volumes of CO2.
 

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fwiw, I run four kegs @11 psi on 6.5 foot 4mm ID EVAbarrier lines (pales/ipas/neipas), one keg @15 psi on 9.5 feet (usually a wheat beer), and the last keg @35 psi on 6.5 feet (my stout on beer gas). Reliably solid pours on all, year 'round. The "half-foot's" are the short sections to splice in my flow meters atop the kegs. All lines connected with PTC fittings from either John Guest, DMfit or Duotight...

Cheers!
 

marc1

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9.8 feet (1/4 roll) is too long for my kegerator with tower. 5.5 is too short. Soon, I'll find the right length. I haven't split any ends yet - might have lost some hair though. I have to wonder how one length can work for both a lightly carbed stout and also a lager with more volumes of CO2.
You can use a short length of 5mm to make it easier to attach and then join that to the 4mm tubing. They have the same OD so they slide into the same fittings
 
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