mini sport booster - can it be driven with higher than 10bar?

sunnyboy · 8th March 2008, 16:19

I was just running with a water trap on mine, but recently decided to buy an additional filter as "insurance". The additional filter is one of those inexpensive ones designed to be used just before a paint sprayer - probably some form of filter paper or synthetic material in a plastic housing. I put quick-connects on both the filters and my fill line so I can put it together / take it apart for storage.

-S

4ster · 8th March 2008, 16:56

Filtering:

When running my Jetsam from the DeWalt, I have a combination filter/water separator that is between the compressor and the booster. I bought the filter/separator at the same store where I bought the DeWalt. It's intended to filter the air when a compressor is used for spray painting so is not anything fancy. It has a clear bowl and a drain valve on the bottom of the bowl to eliminate water. I think the filter is supposed to be 10 microns. I have never needed to drain any water, or seen any contaminates, but it is reassuring to have it.

Also mounted after the filter/separator is a filter/desiccant cartridge. In hind sight I think this is unnecessary. The desiccant changes color when exposed to moisture and it undergoes a full change after only a couple of boosting sessions. I keep it only because it provides a second filter that is easier to inspect when I change it. It was purchased at an auto supply store and its intended use is for painting also. I found a fitting at a hardware store that allows a drysuit hose to be connected to the desiccant cartridge. The Jetsam comes with a drysuit fitting to connect to the drive gas.

The DeWalt's tank spits condensation when I drain it at the end of a boosting session. I drain it every time. The supply hose I use with the DeWalt is only used for the booster. I have no idea what's in the other air hoses around the shop. I bought steel connection fittings for the compressor hose - that was a mistake. Buy brass. The steel ones corrode and since I don't want to use any oil it is a pain to keep them working.

Fixed to the outlet side of the separator, before the desiccant, is a ball valve that I use to regulate the flow to the booster. When the pressure differential between the donor cylinder and the recipient cylinder is low the booster fills too fast. The ball valve does a good job of regulating the flow of drive air into the booster.

I do not filter the air from my donor Nitrox SCUBA cylinders. I get O2 clean air from my local dive shop. They have hyperfiltered air that they use for partial pressure blending. It would probably be a good idea to filter regular SCUBA air but keep in mind that this type of filter will be expensive to buy and maintain.

Brainx3 · 8th March 2008, 17:28

Hi,

So you are saying that even an Oil-Free compressors can generate condensation? Well, I didn't think about that myself since I never had this type of compressor. I would appreciate some links as well to the filter you are currently having or maybe if there's something similar online then it would be great to read about a bit more. Attaching a filter between the compressor and the booster only requires a low pressure filter while between the filling tank and the booster would require a high pressure filter.

Best Regards. Wael

4ster · 8th March 2008, 19:42

The condensation is from moisture in the atmosphere. Anytime you compress a humid gas some moisture will be "wrung out" of the gas.

One key point here is that in my experience I don't get any water in the filter's water trap. I live in a cold, humid environment, yesterday the humidity was 90% and the temp was 53 F when I was boosting. The compressor's tank does accumulate water and this needs to drained periodically.

I don't have any links for the filters, they were purchased at home stores and auto parts stores. I searched my hard drive this morning for a picture of the parts plumbed together but couldn't find any - I must have deleted them. I'll snap a couple and post here next week.

Brainx3 · 8th March 2008, 20:10

Hi Steve,

Thanks for the feedback. I would appreciate the brand's name of your filter. To which maximum pressure they are rated?

Best Regards. Wael

sunnyboy · 8th March 2008, 22:32

4ster,

we have almost the same setup, except I could not find the dessicant filter anywhere.

Like you I have a dedicated hose and drain the compressor every time.

Here's a picture of my filter set-up for the drive gas.

Brainx3 · 9th March 2008, 05:15

Hi,

Is there a link for the store where you got the filter from? Or at least the filter's brand name as it's not clear in the picture so maybe I can do some research on it and see what's available online. Thanks for the pictures by the way.

Best Regards. Wael

Outlaw · 9th March 2008, 09:31

hey guys,

i also thank you for the info and the pictures. i remember Rob, (aka divereb) had a very good set up for the haskel.

i hope i find the info he posted up once.

Spyros

diverreb · 9th March 2008, 13:25

Quote: (Originally Posted by Outlaw)

hey guys,

i also thank you for the info and the pictures. i remember Rob, (aka divereb) had a very good set up for the haskel.

i hope i find the info he posted up once.

Spyros

Anything specific that you need, please ask....

Richie

Brainx3 · 9th March 2008, 13:34

Hi,

Well, uploading some pictures of the set up would be nice to see. Maybe some advice on the filtering issue as well

Best Regards. Wael

8th March 2008, 16:19	#21 (permalink)
sunnyboy New Member Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Feb 2006 Location: Ladysmith, B.C. Canada Posts: 91	Re: mini sport booster - can it be driven with higher than 10bar? I was just running with a water trap on mine, but recently decided to buy an additional filter as "insurance". The additional filter is one of those inexpensive ones designed to be used just before a paint sprayer - probably some form of filter paper or synthetic material in a plastic housing. I put quick-connects on both the filters and my fill line so I can put it together / take it apart for storage. -S
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8th March 2008, 16:56	#22 (permalink)
4ster Steve Sprague Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Mar 2006 Location: Arlington, Washington Posts: 294	Re: mini sport booster - can it be driven with higher than 10bar? Filtering: When running my Jetsam from the DeWalt, I have a combination filter/water separator that is between the compressor and the booster. I bought the filter/separator at the same store where I bought the DeWalt. It's intended to filter the air when a compressor is used for spray painting so is not anything fancy. It has a clear bowl and a drain valve on the bottom of the bowl to eliminate water. I think the filter is supposed to be 10 microns. I have never needed to drain any water, or seen any contaminates, but it is reassuring to have it. Also mounted after the filter/separator is a filter/desiccant cartridge. In hind sight I think this is unnecessary. The desiccant changes color when exposed to moisture and it undergoes a full change after only a couple of boosting sessions. I keep it only because it provides a second filter that is easier to inspect when I change it. It was purchased at an auto supply store and its intended use is for painting also. I found a fitting at a hardware store that allows a drysuit hose to be connected to the desiccant cartridge. The Jetsam comes with a drysuit fitting to connect to the drive gas. The DeWalt's tank spits condensation when I drain it at the end of a boosting session. I drain it every time. The supply hose I use with the DeWalt is only used for the booster. I have no idea what's in the other air hoses around the shop. I bought steel connection fittings for the compressor hose - that was a mistake. Buy brass. The steel ones corrode and since I don't want to use any oil it is a pain to keep them working. Fixed to the outlet side of the separator, before the desiccant, is a ball valve that I use to regulate the flow to the booster. When the pressure differential between the donor cylinder and the recipient cylinder is low the booster fills too fast. The ball valve does a good job of regulating the flow of drive air into the booster. I do not filter the air from my donor Nitrox SCUBA cylinders. I get O2 clean air from my local dive shop. They have hyperfiltered air that they use for partial pressure blending. It would probably be a good idea to filter regular SCUBA air but keep in mind that this type of filter will be expensive to buy and maintain. __________________ Steve "My problem is that I have trouble reconciling my gross habits with my net income." Errol Flynn
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8th March 2008, 17:28	#23 (permalink)
Brainx3 Totally Submerged Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Aug 2007 Location: International Waters Posts: 292	Re: mini sport booster - can it be driven with higher than 10bar? Hi, So you are saying that even an Oil-Free compressors can generate condensation? Well, I didn't think about that myself since I never had this type of compressor. I would appreciate some links as well to the filter you are currently having or maybe if there's something similar online then it would be great to read about a bit more. Attaching a filter between the compressor and the booster only requires a low pressure filter while between the filling tank and the booster would require a high pressure filter. Best Regards. Wael __________________ The depth of life cannot be measured in Bars, nor can the sea of lies, that lies within. Sooner or later I'll be cracking your market and end your game. *I don't take crap for an answer...*
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8th March 2008, 19:42	#24 (permalink)
4ster Steve Sprague Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Mar 2006 Location: Arlington, Washington Posts: 294	Re: mini sport booster - can it be driven with higher than 10bar? The condensation is from moisture in the atmosphere. Anytime you compress a humid gas some moisture will be "wrung out" of the gas. One key point here is that in my experience I don't get any water in the filter's water trap. I live in a cold, humid environment, yesterday the humidity was 90% and the temp was 53 F when I was boosting. The compressor's tank does accumulate water and this needs to drained periodically. I don't have any links for the filters, they were purchased at home stores and auto parts stores. I searched my hard drive this morning for a picture of the parts plumbed together but couldn't find any - I must have deleted them. I'll snap a couple and post here next week. __________________ Steve "My problem is that I have trouble reconciling my gross habits with my net income." Errol Flynn
(Offline)

8th March 2008, 20:10	#25 (permalink)
Brainx3 Totally Submerged Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Aug 2007 Location: International Waters Posts: 292	Re: mini sport booster - can it be driven with higher than 10bar? Hi Steve, Thanks for the feedback. I would appreciate the brand's name of your filter. To which maximum pressure they are rated? Best Regards. Wael __________________ The depth of life cannot be measured in Bars, nor can the sea of lies, that lies within. Sooner or later I'll be cracking your market and end your game. *I don't take crap for an answer...*
(Offline)

9th March 2008, 05:15	#27 (permalink)
Brainx3 Totally Submerged Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Aug 2007 Location: International Waters Posts: 292	Re: mini sport booster - can it be driven with higher than 10bar? Hi, Is there a link for the store where you got the filter from? Or at least the filter's brand name as it's not clear in the picture so maybe I can do some research on it and see what's available online. Thanks for the pictures by the way. Best Regards. Wael __________________ The depth of life cannot be measured in Bars, nor can the sea of lies, that lies within. Sooner or later I'll be cracking your market and end your game. *I don't take crap for an answer...*
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9th March 2008, 09:31	#28 (permalink)
Outlaw In search of Law breaking Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Cyprus, Nicosia Posts: 634	Re: mini sport booster - can it be driven with higher than 10bar? hey guys, i also thank you for the info and the pictures. i remember Rob, (aka divereb) had a very good set up for the haskel. i hope i find the info he posted up once. Spyros __________________ CMAS - IANTD - TDI Kamikazi Instrustor Trainer DIRRebreather Team Member ---------------------------- "Once an Outlaw, always an Outlaw"
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9th March 2008, 13:25	#29 (permalink)
diverreb DE/MD/NJ Wreck Diver Current Rebreather/s: Optima Other Rebreather/s: Join Date: Mar 2007 Location: Dover, DE Posts: 599	Re: mini sport booster - can it be driven with higher than 10bar? Quote: (Originally Posted by Outlaw) hey guys, i also thank you for the info and the pictures. i remember Rob, (aka divereb) had a very good set up for the haskel. i hope i find the info he posted up once. Spyros Anything specific that you need, please ask.... Richie
(Online)

9th March 2008, 13:34	#30 (permalink)
Brainx3 Totally Submerged Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Aug 2007 Location: International Waters Posts: 292	Re: mini sport booster - can it be driven with higher than 10bar? Hi, Well, uploading some pictures of the set up would be nice to see. Maybe some advice on the filtering issue as well Best Regards. Wael __________________ The depth of life cannot be measured in Bars, nor can the sea of lies, that lies within. Sooner or later I'll be cracking your market and end your game. *I don't take crap for an answer...*
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