The King Cobra

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Re: The King Cobra

Unread postby jamesmb » Tue Oct 24, 2017 12:28 pm

Hi Nashbrew - thanks, great answer (for someone with my condition :-) )
That adapter is a winner. I have been lucky using 1/2" BSP (the reducer you get with hozelock tap adapters) on 1/2" NPT but that luck will run out. At least using a plastic reducer if anything gets ruined it's the cheap plastic bit!
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Re: The King Cobra

Unread postby jamesmb » Tue Oct 24, 2017 12:32 pm

Be afraid
Attachments
plumbing.PNG
My plumbing basket ...
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Re: The King Cobra

Unread postby mashy » Tue Oct 24, 2017 6:00 pm

Good man. I recognise that shopping list.

Twin coil or single?
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Re: The King Cobra

Unread postby jamesmb » Thu Oct 26, 2017 9:15 pm

Twin 10mm - I reduced the shopping list, had some plan B parts in there!
Expect some swearing this weekend!
One thing I forgot - is it easy to bend the 15mm copper past 90deg to get downward pointing connections. I hope so!

I was tempted to go for triple 8mm with a bullet manifold - bet you've never met them before (I hadn't) but I was sorely tempted.
3/4" to 22mm to 3way 8mm bullet manifold seemed like a pretty neat solution.........
https://www.stevensonplumbing.co.uk/microbore-manifolds.html
But the 3/4" to 15mm to dual 10mm seemed like a more robust winding. :-)
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Re: The King Cobra

Unread postby mashy » Fri Oct 27, 2017 6:08 am

15mm will need benders.

I did 15 to twin 10. Very pleased.

viewtopic.php?f=4&t=1923&hilit=Turbo+chill
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Re: The King Cobra

Unread postby jamesmb » Tue Jan 02, 2018 5:12 pm

OK - it's been a while - circumstances conspired to keep me away from this since my last post.
I notice the Hydra coils are slightly conical and I wondered if this was a manufacturing or a performance thing. I guess it is a simple way of getting all the coils submerged plus it means that the coils are all the same length so should have the same flow.
I want the performance so imagined doing stacked conical winds just like the neat and tidy Jaded masterpiece that is the hydra.The only thing that looks like a suitable former is a metal bucket that I made into a foundry with my son.
The parts I have are for twin 10mm coils teed to 15 mm feed - I imagined one tee at the bottom and one at the top - similar to Mashy's turbo chiller - now I start trying to plan the geometry it looks more complicated.
Need to find a former and dive in, perhaps I'll end up with an inner coil with a shorter pipe or else keep the branch lengths the same and so have a taller inner coil because of the smaller radius.
Thoughts?
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Re: The King Cobra

Unread postby mashy » Wed Jan 03, 2018 8:09 am

I would think the conical shape is a manufacturing and assembly decision. One piece that tessellates to build the whole.

10mm bends lovely. It comes coiled. You need to work with it. Expand it like a spring along the floor. Then start at one end and tighten it up around a former. Have a few cable ties to hand before you start.

Doing it on carpet will save scratches (wait for shopping day) :D

I used a DJ and a gas bottle as a former, you will need to trial things 'cos it will relax and you get a larger coil that you expect. Do the outer coil first. It is easier to tighten than relax a coil.

You can always tighten it up (clamp) before soldering. Also consider pipe sealant. Easier to build. Quicker and you can use cable ties and gaffer tape for clamping.
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Re: The King Cobra

Unread postby PerzellBrewing » Sun Jan 21, 2018 1:25 am

So pulled the trigger and got the JadedBrewing Hydra instead of the King Cobra. I had purchased a counter flow wort chiller which had a leak. The company just sent me another one. So sold them both and got the Hydra instead. Did a water test last night with the below results.

Amount of water: 25L
Starting Water Temp: 99C
Ending Water Temp: 20C
Chill Water Temp: 9C
Time to Chill: 10 minutes 10 seconds with pump running

Ground water was cold, but that is just amazing in my opinion. 10 minutes to chill 25L of water is CRAZY!!! Super happy with my purchase.
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Re: The King Cobra

Unread postby uk_brewer » Mon Jan 22, 2018 1:06 am

Did you get this customized at all so it’s not sitting on the boil element?
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Re: The King Cobra

Unread postby PerzellBrewing » Mon Jan 22, 2018 2:57 am

I did not. The Hydra doesn't hit coils on my 20L. It's smaller width wise than Cobra but taller.
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Re: The King Cobra

Unread postby PerzellBrewing » Tue Jan 23, 2018 3:20 pm

uk_brewer wrote:Did you get this customized at all so it’s not sitting on the boil element?

You made me question my previous statement ( I had been drinking when I did the test and just wanted to make sure) about fitting in the coil. I checked again last night and the Hydra fits inside the heating coils on a 20L BM old model. :beer:
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Re: The King Cobra

Unread postby MonsieurBadgerCheese » Thu Apr 05, 2018 2:29 pm

Bonjour,

For anyone who may be interested, I timed the 'cool-down' with the King Cobra today. 25 litres from the boil down to 20C took a fraction under 13 minutes. Tap water temperature 14C.

MBC :)
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Re: The King Cobra

Unread postby PerzellBrewing » Thu Apr 05, 2018 10:06 pm

MonsieurBadgerCheese wrote:Bonjour,

For anyone who may be interested, I timed the 'cool-down' with the King Cobra today. 25 litres from the boil down to 20C took a fraction under 13 minutes. Tap water temperature 14C.

MBC :)

Well worth the investment?
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Re: The King Cobra

Unread postby MonsieurBadgerCheese » Sat Apr 07, 2018 7:34 am

PerzellBrewing wrote:
MonsieurBadgerCheese wrote:Bonjour,

For anyone who may be interested, I timed the 'cool-down' with the King Cobra today. 25 litres from the boil down to 20C took a fraction under 13 minutes. Tap water temperature 14C.

MBC :)

Well worth the investment?


I would say so, yes. Also I now realise that I stupidly forgot to remove the insulating jacket from the Braumeister, so that time should be able to be improved upon.

MBC :)
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Re: The King Cobra

Unread postby Nashbrew » Wed Apr 11, 2018 11:00 am

I am down to about 10 to 12 minutes depending on water butt temperature with a Hydra.
Don't forget to wake up breathing!
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