2" Boka development.

High performance modular SS304 plated columns and accessories.

Re: 2" Boka development.

Postby Urrazeb » Tue Mar 31, 2015 11:18 am

I'll give one thing away though... These are a very good looking unit :-B :teasing-neener: :D
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Re: 2" Boka development.

Postby Fishboy » Tue Apr 07, 2015 11:00 pm

And? :whistle:
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Re: 2" Boka development.

Postby MacStill » Wed Apr 08, 2015 3:59 pm

Fishboy wrote:And? :whistle:


:text-+1:
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Re: 2" Boka development.

Postby Fishboy » Wed Apr 08, 2015 11:14 pm

awwwwww CMON.....
This is worse than waiting for Christmas.....
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Re: 2" Boka development.

Postby 1 2many » Thu Apr 09, 2015 5:06 pm

SOON :teasing-neener:
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Re: 2" Boka development.

Postby Fishboy » Thu Apr 16, 2015 12:03 pm

Whooooosssssshhhhh
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Re: 2" Boka development.

Postby Zak Griffin » Thu Apr 16, 2015 12:12 pm

Nearly 3 weeks and no word... Zeb's done a runner?
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Re: 2" Boka development.

Postby LBextreme » Thu Apr 16, 2015 1:32 pm

Zak Griffin wrote:Nearly 3 weeks and no word... Zeb's done a runner?

I think he put too much wash in the boiler and it's taking time.
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Re: 2" Boka development.

Postby bayshine » Thu Apr 16, 2015 2:01 pm

Maybe he's run off and married it :laughing-rolling:
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Re: 2" Boka development.

Postby MacStill » Fri Apr 17, 2015 1:21 pm

I'll chase this up over the weekend, apologies for this dragging out for so long :oops:
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Re: 2" Boka development.

Postby Urrazeb » Sun Apr 26, 2015 9:06 pm

Hey fellas, apologies for the delay.

If anyone in Perth has a controller I could borrow for a few hours I'll make it worth your while :pray:
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Re: 2" Boka development.

Postby Swisswa » Mon Apr 27, 2015 10:20 pm

Hi guys,

I bought one of these boka heads off Mac last week and have given it a few runs in the Turbo 500 boiler and can say it runs beautifully. With a 600mm packing column full of stainless scourers and some copper saddles I consistently pulled off 93% ABV from a WBAB wash with the reflux condenser more than capable of knocking the vapours down.

A second run with some 30% hearts in the boiler (just to test) performed just as well with no vapour loss through the condenser.

Cheers.
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Re: 2" Boka development.

Postby Fishboy » Tue Apr 28, 2015 10:09 am

Hi SwissWa,
What did you pay for it?
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Sadly found I don't have the time or patience to do this justice.

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Re: 2" Boka development.

Postby MacStill » Tue Apr 28, 2015 10:30 am

Fishboy wrote:Hi SwissWa,
What did you pay for it?


Send me an email mate, we'll work out a special price for you seeing you've been so patient

allan@5stardistilling.com.au :handgestures-thumbupleft:
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Re: 2" Boka development.

Postby Linno » Tue Apr 28, 2015 10:41 am

Urrazeb wrote:Hey fellas, apologies for the delay.

If anyone in Perth has a controller I could borrow for a few hours I'll make it worth your while :pray:


gday Urrazeb

I have a controller that is collecting dust atm you are welcome to grab it mate send me a pm.

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Re: 2" Boka development.

Postby Urrazeb » Tue Apr 28, 2015 10:53 am

Thanks Linno, PM sent :handgestures-thumbupleft:
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Re: 2" Boka development.

Postby Andy » Wed Apr 29, 2015 12:18 am

MacStill wrote:
Fishboy wrote:Hi SwissWa,
What did you pay for it?


Send me an email mate, we'll work out a special price for you seeing you've been so patient

allan@5stardistilling.com.au :handgestures-thumbupleft:


(*) (*) (*) (*) (*) now that's customer service
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Doesn't get more simple then that

Re: 2" Boka development.

Postby TheMechwarrior » Wed Apr 29, 2015 10:03 am

When will these be available in the 5 Star Store Mac?

I get asked about Boka builds all the time, it would be nice to simply direct people to the store :)

Cheers,

Mech.
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Re: 2" Boka development.

Postby MacStill » Wed Apr 29, 2015 10:21 am

Should be within a few days now mate, just been getting feedback on the test units and all seems good with them.... I didnt want to release them until they were proven to perform as I wanted them to :handgestures-thumbupleft:
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Re: 2" Boka development.

Postby Urrazeb » Sat May 02, 2015 10:22 am

OK, the results are in.

Firstly let me apologise to everyone who has been waiting for this post. I had some unrelated issues that took priority and had some time to run her up last night so here are the juicy run specs;

18°C Boiler charge of 35% wheat vodka low wines
18°C Cooling water temp - 1000lt
20°C Ambient, in shed, no breeze
2 x 2400W elements, one through controller for operation, 1 off

I'll leave out boil up time, fores etc etc and assume this information to be irrelevant

Boka specs - 0.9m copper packing
Shot glass on the vent to monitor overpowering
rig.jpg



7000 LPH pump to 4 way manifold - one relief open, 2.5m head, approximately 2000 LPH makes it to the condenser

At 1.5 LPH take off the rig was pulling 94% @ 23°C = 93.4% actual with the voltage controller on 125
SweetSpot.jpg


At 0.5 LPH the rig was pulling 95% ABV @ 20°C = 95% actual with controller at 140
maxpower.jpg


With 1200mm of packing this rig could pull aezotrope at 1.0 LPH at a touch over 125 on the controller, it is a very capable rig and when ran right very little adjustments are needed for a consistent run.

I overpowered the rig to see how much it could handle but it didn't like going much over 150V.

All in all it was a good run and the rig had no issues, for someone wanting a rig to make neutral these are a perfect to get you going :handgestures-thumbupleft:

If I get some time I will add another 500mm packed section and see what she can pull at 1400mm packing
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