Does a change in the diameter of beerline matter?

[Buckskin76]

Hi

I currently have a kegerator which is setup for 3/8 beerline. I want to convert to 3/16 to get a better pour.

The trouble is that the metal shank, which is about a foot long, is 3/8. Does it matter if I have 10 foot of 3/16 which is then connected to a 3/8 shank? Will this effect the pour in any way?

 

[STMF]

Hi,

I use the following setup:

KEG_with_3/8"->JG3/8_TO_3/16"->About_8_feet_3/16"_line ->JG3/16"_TO_3/8"->Tap

It works great for me.

 

[porterpounder]

It shouldn't be a problem. Unless it's a really long shank (like feet long, which I've never seen).

 

[Buckskin76]

Thanks for the quick response.

The shank is about 1'6". basically extending from the tap to just below the tower. Is this long enough to cause foaming?

 

[jddevinn]

The flow rate will be set by the smaller line going into the shank. At the shank the beer will expand to fill the larger diameter and will flow at a slower pace. It should not cause foaming

 

[day_trippr]

"well, actually"...the pressure drop at the small-to-large transition could cause some CO2 break-out...

Cheers!

 

[jddevinn]

"well, actually"...the pressure drop at the small-to-large transition could cause some CO2 break-out...

Cheers!

I looked up the pressure for a sudden change in diameter from 3/16" to 3/8" line in Cameron Hydraulic Data .... didn't write it down but it was something like 3/4' of 3/16" line. I could be making a large assumption but I figure that's not a large pressure differential over the space.