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Old 12-26-2009, 11:04 PM   #1
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Default My MLT build

Well, the Flash boiler I am building isn't the only componet I need for my new brew rig. I am going to build all new stuff for it.

So, here is the begining of my new MLT. Yes folks, I got all my kegs that I have ever used the right way. I am not a thief. This one looks rough right now due to some paint all over it. That will change soon. I liked the way I cut my old one out but didn't like the fact that I didn't have a lid. After some thought on how I wanted to do this I am now started. Though I am not done planning.

Here is the keg before I got started today.


I cut it along one of the raised portions to take advantage of the factories work, at flaring the keg. I marked it all along the circumfrence for a guide. I marked it twice so I could cut out a section cause I didn't want it to be full height.



Here is how I went about marking the keg. Kinda a home made height guage.

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Old 12-26-2009, 11:12 PM   #2
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I went with my grinder and a cut off wheel. I thought all about how I could cut it with a jig and or my plasma and a jig, Blaaah. Too much work. So I took my time getting around it cutting on one side of the line so I could watch the wheel.

Here it is all apart.


Here is where my lid will come from.


A shot of the fit. I still need to clean up the burrs from the cutting wheel


Here it is now. I cleaned off the burrs and had some rubber edging on hand so I used it for a seal. The beauty of this is any condensation will run right back down the inside even without the rubber.


Now I have to get that paint off of there. I am not going to be too picky cause I plan on insulating it. I might polish the top piece though. Anyone have some ideas on insulation material? Thanks for looking.

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Old 12-27-2009, 12:21 AM   #3
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This is very interesting, I've never seen a keg converted in this way.

I suppose Great Stuff spray foam would do a fairly good job as an insulator. You could build a cylindrical jacket out of stainless sheet or aluminum, orient it around the keg properly, and fill it with the spray foam. I assume you aren't applying any kind of heat directly to the MLT.

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Old 12-27-2009, 12:31 AM   #4
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Quote:
Originally Posted by ReeseAllen View Post
This is very interesting, I've never seen a keg converted in this way.

I suppose Great Stuff spray foam would do a fairly good job as an insulator. You could build a cylindrical jacket out of stainless sheet or aluminum, orient it around the keg properly, and fill it with the spray foam. I assume you aren't applying any kind of heat directly to the MLT.


Hey Reese,

I was actually just gonna ask if any one has done a conversion this way before? Then I saw your post. It is hard to come up with new stuff. If anyone knows please share.

I did it like this to have a solid lid so I could do a stiring device of some kind. I have some ideas but nothing in stone.

No, direct heat will not be happening. I am building a Flash boiler. This will be steam injected and the system will not have a HLT. Just 2 vessles and the FB.

I like the idea of the spray foam. I could do all the work then built the jacket and fill it up. I was thinking of using Nomex. I might be able to get my hands on some scrap at work, but I am not going to bet on that. This place is pretty tight, even with waste materials.
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Old 12-27-2009, 11:37 PM   #5
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While this is probly common knowledge to most of you, I just figured it out. I think I have found the way I am going to make the motor detachable from the lid. I found that a 2" sanitary fitting matches the top of a sanke keg. A moded boona gasket and I am in like flinn. Although it fits nice and tight without a gasket. The clover clamp tightens right up.

Here is a shot of the fitting. The sanitary fitting is on the end of a hop back I made. (I polished the inside and left the weld outside)


Just for kicks, here is the inside of my hop back.

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Old 12-27-2009, 11:58 PM   #6
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Without direct firing, you have a lot of options.

It looks like a foot of this stuff would work well, http://www.mcmaster.com/#9385k23

This is also promising. Urethane coated and adhesive backed, 1" thick, item 5692T51

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Old 12-28-2009, 12:28 AM   #7
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Thank you Bobby_M.

I think I am going to try this method out. He used 1" thick ridgid board from the depot. You know the pink stuff. It was then wrapped in the alum flashing. He says it works quite well. Here is his end result. Hard to believe there is a keg under there.

Too bad I don't know the guy or am a member on the forum I found it on. I could ask some questions.

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Old 12-28-2009, 12:28 AM   #8
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GreenMonti - Nice work...
What size batches do you run? Just wondering, if the reduced capacity is gonna cause you problems with high gravity beers.

As you are well aware, I'm also building a system and I'm interested in what you come up with for insulation.

I just placed an order with mcmaster today... Had I seen Bobby's message I may have added a couple feet of the first item he listed. I wonder if I can change my order with mcmaster?

I'm hoping to try out my mlt next weekend (using my original hlt & bk). I was thinking of wrapping it with Reflex to see how it works.

Ed

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Old 12-28-2009, 12:35 AM   #9
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Quote:
Originally Posted by Ohio-Ed View Post
GreenMonti - Nice work...
What size batches do you run? Just wondering, if the reduced capacity is gonna cause you problems with high gravity beers.

As you are well aware, I'm also building a system and I'm interested in what you come up with for insulation.

I just placed an order with mcmaster today... Had I seen Bobby's message I may have added a couple feet of the first item he listed. I wonder if I can change my order with mcmaster?

I'm hoping to try out my mlt next weekend (using my original hlt & bk). I was thinking of wrapping it with Reflex to see how it works.

Ed
Hey Ed,

I think we got crossed in posting. The above pic is from a forum I don't belong to. I didn't recive any feedback here, so in the google process this is what I found. I am going to try this due to the cost. I was gonna do the armorflex (I think that is what it was) till I saw this. Very clean looking and he says it only looses about a half a degree over the hour. While it sounds to good to be true, I must try it due to cost. Plus any insulation I add will only help out the steam injection I will be doing.

So, you will be droping off your kegs tomorrow, yes?

I will post the link to the Armorflex???


Here you go. Yes I spelled it wrong
This is the sheet I was thinking of using.
http://www.armaflex.com/www/armacell...2?OpenDocument


I think this is thier home page.
http://www.armaflex.com/www/armacell...e?OpenDocument


Oh, I forgot. I run 5 gallon batches. I figure I have more then enough room. So far a 13 lb batch only costs me about 3 inches of space in my current MLT. With my current false bottom, I barley get up to the first waiver in the side.

PM sent ED.
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Old 12-28-2009, 12:45 AM   #10
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Quote:
Originally Posted by GreenMonti View Post
Hey Ed,

I think we got crossed in posting. The above pic is from a forum I don't belong to. I didn't recive any feedback here, so in the google process this is what I found. I am going to try this due to the cost. I was gonna do the armorflex (I think that is what it was) till I saw this. Very clean looking and he says it only looses about a half a degree over the hour. While it sounds to good to be true, I must try it due to cost. Plus any insulation I add will only help out the steam injection I will be doing.

So, you will be droping off your kegs tomorrow, yes?

I will post the link to the Armorflex???
Yes, the other 2 kegs get dropped off tomorrow. In my previous msg I was referring to the first couple posts you made (cutting the keg).

I just hung up the phone with mcmaster and added 2 feet of the polyurethane foam insulation to my order... I should have it Tuesday.

Do you think the aluminum flashing in that picture will be substantial enough? It just kinda seems like it may get banged up real easy.

Ed
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