Intersorb 8-12 Available CHEAP

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Well, this thread has been very helpful to me and local Mallorca rebreather divers.

After enquiries this morning, we will soon have a few kegs of Intersorb 812 to try on the island as an alternative to Sofnolime (the only available and stocked product, very expensive and in limited quantities).

Intersorb 812 land based and try wet dives (in caves :crossfing )are now scheduled for mid-May in Mallorca (more details will be posted soon in rebreathermallorca.com forum ) and will gladly share the experience here (very much so I hope to be back and share :thumbsup: ).
 
Alby R said:
hi dave

thanks for your input but i don't know if it would be different thats why i am asking for info and as far as i can see no one has psoted so far that they have used it in inspos

alby
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It won't be different... a scrubber is a scrubber is a scrubber is a scrubber..... (more or less).

The fact that Paul has approved it for use in the rEvo is the gold standard for me, he is VERY careful about formal testing, and has dismissed a few other sorbs that have been used in other rigs as not suitable (Sodasorb HP to be precise, even though it is the USN standard). For him to add Intersorb to the list of approved materials for the rEvo is a very high level endorsement.


Dave

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On paper according to manufacturer tests it is actually better than Sofnolime.

See: http://www.divelime.com/dldownloads/Test_Data_Intersorb_812_v_Sofnolime_797.pdf

...but bear in mind that there is so much "talking your own book" in the rebreather "industry" that I am sure those with a good di$tribution agreement with $ofnolime will argue that only their $orb and not the Inter$orb is the approved one for their rebreather (same as they would do for their O2 $ells which than fail miserably in use).

Testing, testing, testing... independent Homebuilder testing!
 
gianaameri said:
On paper according to manufacturer tests it is actually better than Sofnolime.

See: http://www.divelime.com/dldownloads/Test_Data_Intersorb_812_v_Sofnolime_797.pdf

...but bear in mind that there is so much "talking your own book" in the rebreather "industry" that I am sure those with a good di$tribution agreement with $ofnolime will argue that only their $orb and not the Inter$orb is the approved one for their rebreather (same as they would do for their O2 $ells which than fail miserably in use).

Testing, testing, testing... independent Homebuilder testing!
Click to expand...

G

thanks for the link very interesting going on holiday now diving in spain will get back onto this when i return

many thanks to all for the input

alby
 
Been using it for 10 months or so , quite happy - much cheaper.

However it appears that in cold water it has reduced duration . If you read carefully the revo results it states this clearly .

On the other hand on " not cold water" performance is identical.

A friend tried it on a mini-sub ( that has a CO2 analyzer) and he got exactly the same performance are the molecular one , confirming the revo results.

So I intend to keep using molecular for cold water only.
 
Gtzav said:
Been using it for 10 months or so , quite happy - much cheaper.

However it appears that in cold water it has reduced duration . If you read carefully the revo results it states this clearly .

On the other hand on " not cold water" performance is identical.

A friend tried it on a mini-sub ( that has a CO2 analyzer) and he got exactly the same performance are the molecular one , confirming the revo results.

So I intend to keep using molecular for cold water only.
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Strange because Intersorb tests show that in cold water Intersorb performs better than Sofnolime.

Do you have a link of the revo test results?
 
The rating for cold water is half hour less ( 2,5 instead of 3)


From REVOs Web site : FAQ

rEvo with standard axial scrubbers, using Sofnolime 797:
water temp > 4°C: one cycle every 2 hours, or refilling both canisters after 3 hours
water temp >15°C: one cycle every 3 hours, or refilling both canisters after 4.5 hours




From RBW where Paul states this as well
www dot rebreatherworld dot com/showthread.php?t=37427

Intersorb® 812 is an 8-12 mesh (1.0-2.5mm)

• Water temperature 4°C to 15°C
• Recommended* maximum dive time 2hrs 30mins or one cycle every 1hr 45mins
• Water temperature 15°C (or above)
• Recommended* maximum dive time 4hrs 30mins or one cycle every 3 hours
 
Gtzav said:
The rating for cold water is half hour less ( 2,5 instead of 3)


From REVOs Web site : FAQ

rEvo with standard axial scrubbers, using Sofnolime 797:
water temp > 4°C: one cycle every 2 hours, or refilling both canisters after 3 hours
water temp >15°C: one cycle every 3 hours, or refilling both canisters after 4.5 hours




From RBW where Paul states this as well
www dot rebreatherworld dot com/showthread.php?t=37427

Intersorb® 812 is an 8-12 mesh (1.0-2.5mm)

• Water temperature 4°C to 15°C
• Recommended* maximum dive time 2hrs 30mins or one cycle every 1hr 45mins
• Water temperature 15°C (or above)
• Recommended* maximum dive time 4hrs 30mins or one cycle every 3 hours
Click to expand...

That could be due to the split scrubber on the revo (gas may cool more in cold water than with unsplit scrubber)... that is it could explain the difference in results between the two manufacturers... but it signals that Intersorb may be more affected by temperature than Sofnolime.

It would be interesting to see Sofnolime vs. Intersorb on a Sentinel (single counterlung and unsplit scrubber can).

I suspect Intersorb could outperform Sofnolime... who knows!
 
Gtzav said:
Would be great if ISC would run similar tests ......
Click to expand...

I can run lots of tests too now that I have a CO2 Monitor... just need to find the time.

They will not be a substitute for manufacturer tests, but for verification purposes to identify inconsistencies could be useful.

I would prefer if NEDU ran the tests though and not just ISC (WOB, Duration, different sorbs).

NEDU tested the MK16 against the Inspo. and I do not understand why they did not include in the tests the MK28 (which I think is the Meg).

If you look at the performance of the tested rebreathers you will find that the Inspo exceeds the maximum "safe" WOB limit as set by Warkander (2.0 Joules/liter), and I wonder if the same is of the Meg (I suspect that with the 8 lbs. radial the Meg may be just inside the limit, but not with the axial, or the smaller 5.5 lbs. radial).

The NEDU comparative test is here (no scrubber duration data though, only WOB): http://www.rebreathermallorca.com/video/2010MegMK16WOBNEDU2010.pdf (no need to login, just click :thumbsup: ).
 
Anyone who tried Intersorb 8 - 12.... do they feel the WOB is noticeably different vs. Sofnolime 8 - 12?

Any reason why it should be?
 
Intersorb manufacturer has kindly shipped several kegs of Intersorb 8 -12 for free trial and is available to local Mallorca users and friends of rebreathermallorca.com .

Kindly register here your interest for a free trial keg of Intersorb 8 - 12 by sending me a PM.

We hope that we will be able to share our end-user personal experiences in this forum and thread very soon!
 
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We received lots of Intersorb, but I had not the time to try it.

Some friends are diving it this week-end on Submatix.

The striking thing on the package is that it says it can be stored between -20C and +50C , while Sofnolime off the top of my head is more delicate... I remember storage between 5C and 40C for Sofnolime.
 
FOR SALE area is not for discussions... we should not have even had what we had before here (read the TOS). So I am going to lock this thread, and you can feel free to start another discussion thread if you choose.

Best,

Dave

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