Hey everyone,
I'm in the process of designing our draft system and I've read through most of the pertinent posts here and also the DBQM. There's some conflicting opinions about choker lines and since ours would be buried in the ceiling I'd prefer not to use vinyl chokers so I don't have to replace them. My main question is:
If I'm running 1/4" trunk lines, can I also run 1/4" vinyl jumper lines from keg to trunk? Or are there issues with flow rates going from more restrictive tubing to less restrictive?
Here are the layout basics:
Tap tower provides 12.8 lbs resistance
Total lift is 1.5'
Trunkline runs 12' from the cold room to the tower which hangs from the ceiling
I'll have a power pack cooling the entire trunkline run, regardless of length.
Assuming a worst case of 2.6 vols/CO2 at 38F = 12.4 psi
With a 70/30 CO2/Nitro beverage gas I get a dispensing pressure of 24 psi
The DBQM calculations give me a couple of balancing options:
- 18' of 1/4" barrier line (and just coil the extra in the cold room) and 6' of 1/4" vinyl jumper
- 27' of 1/4" barrier line and 6' of 5/16" vinyl jumper
- 31' of 1/4" barrier line and 6' of 3/8" vinyl jumper
I'd prefer the shorter trunk line but again, not sure if there's an issue going from high-resistance vinyl to low-resistance barrier even if they're the same ID.
Thanks in advance!
I'm in the process of designing our draft system and I've read through most of the pertinent posts here and also the DBQM. There's some conflicting opinions about choker lines and since ours would be buried in the ceiling I'd prefer not to use vinyl chokers so I don't have to replace them. My main question is:
If I'm running 1/4" trunk lines, can I also run 1/4" vinyl jumper lines from keg to trunk? Or are there issues with flow rates going from more restrictive tubing to less restrictive?
Here are the layout basics:
Tap tower provides 12.8 lbs resistance
Total lift is 1.5'
Trunkline runs 12' from the cold room to the tower which hangs from the ceiling
I'll have a power pack cooling the entire trunkline run, regardless of length.
Assuming a worst case of 2.6 vols/CO2 at 38F = 12.4 psi
With a 70/30 CO2/Nitro beverage gas I get a dispensing pressure of 24 psi
The DBQM calculations give me a couple of balancing options:
- 18' of 1/4" barrier line (and just coil the extra in the cold room) and 6' of 1/4" vinyl jumper
- 27' of 1/4" barrier line and 6' of 5/16" vinyl jumper
- 31' of 1/4" barrier line and 6' of 3/8" vinyl jumper
I'd prefer the shorter trunk line but again, not sure if there's an issue going from high-resistance vinyl to low-resistance barrier even if they're the same ID.
Thanks in advance!
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