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1. 07:18 AM - Re: Main Air Tank (Ernest Martinez)
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| Subject: | Re: Main Air Tank |
Yep you're correct, if it's not the right alloy, it could be a problem.
Fortunately these things are strictly regulated. The aluminum tanks by
themselves are rated for 2260 PSI, the Carbon Fiber brought them up to 4500
PSI. Again, at the pressures I'm going to run it at, its not an issue at
all. Also remember aluminum scuba tanks are made of the same stuff and live
in salt water all their lives. At the end of the day it's all about
diligent maintenance.
The reason I'm doing this because I'm terrified of my current 40 yr old
steel welded tank, that I have no reliable history on, and can't get
hydrotested locally. Yes I know there is some place I can ship it to, but I
have several issues with that. I'd rather be able to do it locally and have
it back the next day. And I like the fact that it's tested to known
parameters (7500 PSI), and a guy is willing to put his name on it and
certify it.
But since it doesn't fit where the original tank goes I've given my self a
good reason to mount it where it will be VERY easy to remove :) The stock
tanks lives under my smoke system and Battery box, shelf and I'm going to
have to remove everything to get the bottle out.
Ernie
On Sun, Mar 15, 2015 at 1:14 AM, Roger Kemp <f16viperdoc@me.com> wrote:
> Line pressure from the compressor before entering the pop- off valve. Miss
> typed the word line. Came over as lone.
> Sorry poor proof reading,
> Doc
>
> Sent from my iPad
>
> On Mar 13, 2015, at 8:23 AM, Ernest Martinez <erniel29@gmail.com> wrote:
>
> Not quite sure I understand your question. Are you referring to the main
> air tank or the emergency tank scenario I illustrated?
>
> Nothing changes WRT to the main air tank mod. Its just a simple
> replacement. The air pressure in the tank would be whatever you have your
> pressure relief valve set to, generally 50 bar or about 750 PSI.
>
> With the emergency tank, there is no input to the emergency bottle. It is
> standalone with just output to the emergency circuit. The pressure in the
> bottle is 4500 PSI, regulated down to 800 PSI.
>
> Ernie
>
> On Fri, Mar 13, 2015 at 9:15 AM, Roger Kemp <f16viperdoc@me.com> wrote:
>
>> What is the lone pressure from the compressor to the tank?
>> Doc
>>
>> Sent from my iPad
>>
>> On Mar 13, 2015, at 5:16 AM, Bill Geipel <l129bs@gmail.com> wrote:
>>
>> Air dryer filter as on airlines for paint gun? Cheap and easy before
>> bottle.
>>
>> Sent from my iPad
>>
>> On Mar 13, 2015, at 13:58, Sam Sax <cd001633@mindspring.com> wrote:
>>
>> Ernie,
>>
>>
>>
>> Would a Drain port be needed here as in the original tank for draining
>> moisture/water?
>>
>>
>>
>> Sam
>>
>>
>>
>>
>>
>>
>>
>> *From:* owner-yak-list-server@matronics.com [
>> mailto:owner-yak-list-server@matronics.com
>> <owner-yak-list-server@matronics.com>] *On Behalf Of *Ernest Martinez
>> *Sent:* Thursday, March 12, 2015 6:15 PM
>> *To:* yak-list
>> *Subject:* Yak-List: Main Air Tank
>>
>>
>>
>> Here are pics of the tank I fashioned for my plane.
>>
>>
>>
>> Specs:
>>
>>
>>
>> Drager 4500 PSI 60 min Carbon Fiber Wrapped Aluminum Tank.
>>
>> Weight 10 lbs
>>
>> Length 21"
>>
>> Diameter 7"
>>
>> Hydro Tested to 7500 PSI.
>>
>>
>>
>> Fittings:
>>
>> Stainless Steel SCBA to NPT Adapter
>>
>> NPT to AN #4 Male Adapter.
>>
>>
>>
>> This should fit in the same bracket where the stock tanks lives. All
>> thats left is to create an aluminum tube pigtail with an AN B-Nut on one
>> end and the Chinese Nut on the other.
>>
>>
>>
>> <image002.jpg><image004.jpg>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *
>>
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