Barrier Tubing 3/16"

[Ohio-Ed]

Paid for 100'.

Thanks for putting this together.
Ed

 

[bad coffee]

Oh, yeah, Put your user name in your paypal or PM me your real name!

B

 

[RiverCityBrewer]

Received my tubing today - thanks again coffee!

 

[Ohio-Ed]

Got mine yesterday as well.
Thanks.
Ed

 

[sj_engr]

Anyone got 5-10' to spare? Interested in trying it out.

 

[lagavulin]

Thanks coffee.

Does anyone have a formula for determining length per PSI with this tubing? Or know how may inches per PSI you need compared to traditional 3/16 vinyl?

Cheers!

 

[bad coffee]

There is one in the beer quality manual.

Basically (psi- (#feet tap is above center of keg)) x.3/ft

At 38* I get
2.1 vols 18'
3 vols 45'.

I'm going with 30 to start, and see how it is.

B

 

[lagavulin]

Awesome thx

 

[southpawbrew]

If someone would be kind enough to take a caliper measurement of the od of the tubing once it is stretched over a 1/4" barbed fitting I would appreciate it.

I ordered some Oetiker clamps for the new set up. Brett measured with some calipers the od of the tubing at .321. What I didn't take into account is the increased od once the tubing was stretched over the 1/4" barbed fittings.

Basically (psi- (#feet tap is above center of keg)) x.3/ft

I guess I need a little more clarification. Does that equation say psi MINUS # of feet tap is above center of keg TIMES .3 DIVIDED by # of feet of tubing?

I was hoping to cut 5 20 foot lengths for my 5 tap kegerator. My taps are less than a foot above my kegs. Were would I be at with 20 foot lengths?

 

[bad coffee]

From the beer quality manual:

• Beer Conditions:
o Beer temperature: 38°F
o Beer carbonation: 2.8 volumes of CO2 per volume of beer
o Dispense gas: 100% CO2
o Gas pressure needed to maintain carbonation = 14.5 psig
• Static Pressure:
o Vertical lift = 5 ft. (Tap 5 ft. above the center of the keg)
o Static resistance from gravity = 5 ft. x 0.5 pounds/foot = 2.5 pounds
• Balance
o Applied pressure of 14.5 psi must be balanced by total system resistance
o Since static resistance equals 2.5 psi, a total of 12 pounds of system resistance will be needed:
Restriction = 14.5 – 2.5 = 12 pounds

The barrier tubing should be about .3 pounds/foot, so you'd need 40' 12 pounds / .3 pounds per foot

Most people here run their home kegerators with the 'standard' 10' of line. that's vinyl and has about 3#/foot. Which means to get the same amount of resistance you'd need 100 feet of tubing at .3#/foot. You're better off doing the math and balancing the lines correctly.

B

 

[southpawbrew]

Got the right stainless Oetiker clamps for the tubing today from McMaster.com

part # 52545K27
Gap-free Pinch Hose And Tube Clamp, 11/32" To 13/32" Clamp Dia Range,13/64" Band Width