[Gasification] Sealing for gasifier?

[jim mason]

On Mon, Sep 5, 2011 at 4:56 AM, Brian D Paasch
<brian at indianarenewables.com> wrote:
> Depending on the location and application, we have had good success using
> Deacon products 3300 (for bolted together flange surface-to-surface seals)
> and 4011 (for threaded fittings). We don't really care for Deacon product
> 8875-Thin, but maybe we simply did not have the correct need/application for
> that product.
> -brian


brian,

i recently found this extruded cord too and ordered some as a sample.
good to hear you've had good luck with it.  how plyable do you find it
remains once heated?  does it keep some level of flexibility unlike
typical black mortars?

for those who have not seen this deacon extruded cord the link is here:

http://www.deaconindustries.com/3300_tech.html

jim


>
> On Sep 5, 2011, at 7:38 AM, Bruce Green wrote:
>
> Check out this line of high temp sealants. Deacon Industries.  Bruce Green
>  http://www.deaconindustries.com/high-temperature-sealant.html
>
> On Sun, Sep 4, 2011 at 11:49 PM, Pete & Sheri <spaco at baldwin-telecom.net>
> wrote:
>>
>>
>>
>>
>>
>> From current discussions about gasification system sealing, I just
>> recalled how we sealed vacuum heat treating vessels that had to be good down
>> to about 10 ^-6 microns or better.  We used Quad rings in milled (trepanned)
>> recesses, with vacuum greases applied.  These seals were resealable many
>> dozens of times.  I don’t know about temperature ranges available for them.
>> In our case, we used them on the exterior joints of the vessels where the
>> temps seldom exceeded the boiling point of water.  But that was in the
>> 1960’s, so I wouldn’t be surprised if materials have improved a lot since
>> then.
>>
>>   A “Quad ring” is a sort-of  square cross section ring, with o-shaped
>> edges.
>>
>> See:
>>
>> http://www.daemar.com/pdfs/118-DMR_Quad-Ring-GrooveDesign_01.pdf
>>
>> for a better look at one style.  There are others.
>>
>>
>>
>> Pete Stanaitis
>>
>> -----------------
>>
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>
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