Bevlex Ultra (Bev Seal Ultra) resistance?

[MikeSkril]

Hi,

I was searching all over but I can’t find the resistance for a Bevlex Ultra (Bev Seal Ultra) 3/16 line.
Anybody can help with that?

Thanks,

 

[day_trippr]

Folks seem to feel they need at least 50% longer lines for the same diameter when using Bev Seal Ultra 235 vs straight PVC (eg: Bevlex 200) so the resistance is significantly lower.

Without knowing what the actual resistance vs flow rate vs pressure vs viscosity curves look like you could trust others' empirical results, use the only line length calculator worth using, and then multiply the resulting line length by 1.5...

Cheers!

 

[MikeSkril]

Strange....thats what I just got from the manufacturer. I asked twice if this table is valid for the Bev-Seal Ultra...they said that the "Barrier" column is valid for Bev-Seal Ultra® Series 235.
2.2 is really high!
Any thoughts?

 

[NervousDad]

I only use 7 ft @ 12 psi and I get a great pour. I think it does have higher resistance.

 

[MikeSkril]

Anyone using the 1/4?

 

[day_trippr]

Strange....thats what I just got from the manufacturer. I asked twice if this table is valid for the Bev-Seal Ultra...they said that the "Barrier" column is valid for Bev-Seal Ultra® Series 235.
2.2 is really high!
Any thoughts?

I wouldn't believe any of that table, as it does not provide the flow rate to match the resistance data point.

All I can tell you is what you'd find on HBT if you looked for it: folks running 10-12psi are running up to 20 feet of 3/16" ID Bev Seal Ultra Series 235 tubing...

Cheers!

 

[MikeSkril]

Yeah, I saw numbers between 6' and 20'.

I think I will go with 1/4 tubing.
I have 15' distance with a 8' vertical rise. I don't think it would work well with 3/16 tubing even if the resistance is lower than they state.
I will connect 3/16 choker lines inside the keezer to balance with more resistance.

Any thoughts?

 

[day_trippr]

For that distance and rise I tend to agree that 3/16" ID Ultra might not quite "make it", so 1/4" ID might be the wiser "Buy It Once" choice.
Chokers - or perhaps flow-control faucets - will almost certainly be required because that 1/4" ID will be like a fire hose without them.

On the up side, you won't have to switch to beer gas to make this work...

Cheers!

 

[milldoggy]

Anyone using the 1/4?

I do, I use 27 feet with a 10 ft rise @/11 psi

 

[gnef]

I also use the 1/4" ID bev seal ultra 235. I only use 8 ft lines, but I do have Perlick 650ss flow control faucets.

With what you are trying to do, having the flow control faucets will give you some wiggle room, especially for the larger diameter tubing that you may need to use.

 

[thatjonguy]

Don't forget your elevation can also play into your calculations.

What temp are you getting in your fridge?

 

[MikeSkril]

Don't forget your elevation can also play into your calculations.

What temp are you getting in your fridge?

Yeah, I know. I use this to calculate:
L = (keg_pressure – 1 – (Height/2)) / Resistance

Temp will be at 38F I guess, but I'm not there for now. I dont even have the fridge yet. :cross:

I'm building the glycol cooled tower (wood) at the moment and will then build my trunk line.

 

[thatjonguy]

Yeah, I know. I use this to calculate:
L = (keg_pressure – 1 – (Height/2)) / Resistance

Temp will be at 38F I guess, but I'm not there for now. I dont even have the fridge yet. :cross:

I'm building the glycol cooled tower (wood) at the moment and will then build my trunk line.

Cool! I want to see a pic when you get done.

And elevation was feet above sea level, it is a small part, but can mess things up.

 

[MikeSkril]

Cool! I want to see a pic when you get done.

And elevation was feet above sea level, it is a small part, but can mess things up.

I will post the story once I've really started putting that together!

As of for the elevation...I can throw a stone in the ocean from where I stand. I guess I can assume that as 0 elevation.

 

[thatjonguy]

I will post the story once I've really started putting that together!

As of for the elevation...I can throw a stone in the ocean from where I stand. I guess I can assume that as 0 elevation.

Lol, good call!

 

[MikeSkril]

Cool! I want to see a pic when you get done.

And elevation was feet above sea level, it is a small part, but can mess things up.

Right now in the making! :rockin:

https://www.homebrewtalk.com/showthread.php?t=556128