air driven Vs manual booster

iain-hsm · 29th March 2007, 19:36

The Microboost is an electrical driven three (3) stage oxygen/helium or dry gas compressor
The 3 stages are 2.4 x 2 x 0.5 inches with a 0.5 inch stroke. Speed is 160 to 180 RPM depending on the Hz. The motor is a single phase 1/2 hp unit with a 16:1 speed reduction gearbox. As the unit is not air driven or manual booster it simply plugs into a standard 3 pin electrical socket.

Although true IMHO it's unfair to judge the filling rate as 45 mins to fill a 2 liter cylinder to 152 barg without stating that this time is with the 2 liter cylinder being EMPTY before filling.

As most air driven booster pumps dont disclose the charging rate, or the amount of drive air used in the process but give the time to fill a small cylinder based on an inlet pressure of 100 bar decanted across.

So with the same technique, first decant, then the microboost would fill in 14 mins. (not 45mins). Out of interest the pump being a compressor and not a booster will happly pump 24/7 at this rate even when the inlet pressure is reduced down to 2 barg. This is a scavaging pump.

As a compressor it is supplied with an automatic cut out when cylinder full, pressure relief valves on all three stages, pressure switch, auto temp cut out relay, 2mu inlet filtration, 2mu outlet filtration, check valve and line bleed valve. Picture enclosed is of the block only.

plazma · 29th March 2007, 20:27

Quote: (Originally Posted by iain-hsm)

The Microboost is an electrical driven three (3) stage oxygen/helium or dry gas compressor....

This would be great but it only fills up to 152bar.

-Pasi

**jmurba** · 29th March 2007, 20:37

Quote: (Originally Posted by plazma)

This would be great but it only fills up to 152bar.

-Pasi

it is far enough for me ,
is it noisy ?

Ben Field · 29th March 2007, 21:18

Couldn't find much about the Rix.....

Saw this though- OXYGEN BOOSTER PUMP

Hmmmmm

**jmurba** · 30th March 2007, 08:01

Quote: (Originally Posted by Ben Field)

Couldn't find much about the Rix.....

Saw this though- OXYGEN BOOSTER PUMP

Hmmmmm

It is true that there is not a lot of feed back about this pump, on the other hand we know that rix is a really serious company, not a small manufacturer .

I have the felling that this is a good pump as it runs slowly and as it is a membrane compressor .

the technology is also used in home medical o2 filling systems, I mean system that make it possible for anybody under o2 at home for medical reasons to fill small bottles to be able to get out.

there are plenty on the market.

the pressure limitation comes from there I think, they don't want home users so produce too high pressure o2, this technology was not made for us divers but for others user, for a bigger maker, cause our activity's market is far too small to produce a compressor just for us.

regards

jean mi

**jmurba** · 30th March 2007, 08:16

Quote: (Originally Posted by jmurba)

It is true that there is not a lot of feed back about this pump, on the other hand we know that rix is a really serious company, not a small manufacturer .

I have the felling that this is a good pump as it runs slowly and as it is a membrane compressor .

the technology is also used in home medical o2 filling systems, I mean system that make it possible for anybody under o2 at home for medical reasons to fill small bottles to be able to get out.

there are plenty on the market.

the pressure limitation comes from there I think, they don't want home users so produce too high pressure o2, this technology was not made for us divers but for others user, for a bigger maker, cause our activity's market is far too small to produce a compressor just for us.

regards

jean mi

Sorry for the bandwith,
I found a links about the home medical oxygen filling systems :
Invacare Home Fill - oxygen system and Polaris EX
of course those systeme are producing and compressing o2 where we only need to compress oxygen.
as a matter of fact the oxygen produced by the concentrator is not pure egough for us (95%) and the use of this oxygen in our ccr would produce nitrogen built up in the loop, but it would be really easy to disconnect the concentrator stage from the compressor stage and to feed the compressor with pure o2 from a supply o2 tank.
I have a lot of connextion in thisq activity as a sollicitor and will try to get a sample machine .
regards
jean mi

plazma · 30th March 2007, 08:27

Quote: (Originally Posted by Ben Field)

Couldn't find much about the Rix.....

Saw this though- OXYGEN BOOSTER PUMP

Hmmmmm

So the European model is 200bar? I wonder who sells it and for what price in Europe?

-Pasi

**jmurba** · 30th March 2007, 08:36

Quote: (Originally Posted by plazma)

So the European model is 200bar? I wonder who sells it and for what price in Europe?

-Pasi

hi,

where did you read or heard about a 200b european model ?

regards

jean mi

plazma · 30th March 2007, 08:43

Quote: (Originally Posted by jmurba)

hi,

where did you read or heard about a 200b european model ?

regards

jean mi

You can read it between the lines at OXYGEN BOOSTER PUMP

-Pasi

Ben Field · 30th March 2007, 08:45

Quote: (Originally Posted by jmurba)

where did you read or heard about a 200b european model ?

It is alluded to in the link I posted... which was why I posted it.

The report also listed the price as $2500 (at the time it was written)

Looks a very tidy little booster.

29th March 2007, 20:27	#12 (permalink)
plazma New Member Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Home Build Join Date: Feb 2005 Location: Oulu, Finland Posts: 104	Re: air driven Vs manual booster Quote: (Originally Posted by iain-hsm) The Microboost is an electrical driven three (3) stage oxygen/helium or dry gas compressor.... This would be great but it only fills up to 152bar. -Pasi
(Offline)

29th March 2007, 20:37	#13 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 860	Re: air driven Vs manual booster Quote: (Originally Posted by plazma) This would be great but it only fills up to 152bar. -Pasi it is far enough for me , is it noisy ? __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Online)

29th March 2007, 21:18	#14 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,635	Re: air driven Vs manual booster Couldn't find much about the Rix..... Saw this though- OXYGEN BOOSTER PUMP Hmmmmm __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
(Online)

30th March 2007, 08:01	#15 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 860	Re: air driven Vs manual booster Quote: (Originally Posted by Ben Field) Couldn't find much about the Rix..... Saw this though- OXYGEN BOOSTER PUMP Hmmmmm It is true that there is not a lot of feed back about this pump, on the other hand we know that rix is a really serious company, not a small manufacturer . I have the felling that this is a good pump as it runs slowly and as it is a membrane compressor . the technology is also used in home medical o2 filling systems, I mean system that make it possible for anybody under o2 at home for medical reasons to fill small bottles to be able to get out. there are plenty on the market. the pressure limitation comes from there I think, they don't want home users so produce too high pressure o2, this technology was not made for us divers but for others user, for a bigger maker, cause our activity's market is far too small to produce a compressor just for us. regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Online)

30th March 2007, 08:16	#16 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 860	Re: air driven Vs manual booster Quote: (Originally Posted by jmurba) It is true that there is not a lot of feed back about this pump, on the other hand we know that rix is a really serious company, not a small manufacturer . I have the felling that this is a good pump as it runs slowly and as it is a membrane compressor . the technology is also used in home medical o2 filling systems, I mean system that make it possible for anybody under o2 at home for medical reasons to fill small bottles to be able to get out. there are plenty on the market. the pressure limitation comes from there I think, they don't want home users so produce too high pressure o2, this technology was not made for us divers but for others user, for a bigger maker, cause our activity's market is far too small to produce a compressor just for us. regards jean mi Sorry for the bandwith, I found a links about the home medical oxygen filling systems : Invacare Home Fill - oxygen system and Polaris EX of course those systeme are producing and compressing o2 where we only need to compress oxygen. as a matter of fact the oxygen produced by the concentrator is not pure egough for us (95%) and the use of this oxygen in our ccr would produce nitrogen built up in the loop, but it would be really easy to disconnect the concentrator stage from the compressor stage and to feed the compressor with pure o2 from a supply o2 tank. I have a lot of connextion in thisq activity as a sollicitor and will try to get a sample machine . regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Online)

30th March 2007, 08:27	#17 (permalink)
plazma New Member Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Home Build Join Date: Feb 2005 Location: Oulu, Finland Posts: 104	Re: air driven Vs manual booster Quote: (Originally Posted by Ben Field) Couldn't find much about the Rix..... Saw this though- OXYGEN BOOSTER PUMP Hmmmmm So the European model is 200bar? I wonder who sells it and for what price in Europe? -Pasi
(Offline)

30th March 2007, 08:36	#18 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 860	Re: air driven Vs manual booster Quote: (Originally Posted by plazma) So the European model is 200bar? I wonder who sells it and for what price in Europe? -Pasi hi, where did you read or heard about a 200b european model ? regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Online)

30th March 2007, 08:43	#19 (permalink)
plazma New Member Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Home Build Join Date: Feb 2005 Location: Oulu, Finland Posts: 104	Re: air driven Vs manual booster Quote: (Originally Posted by jmurba) hi, where did you read or heard about a 200b european model ? regards jean mi You can read it between the lines at OXYGEN BOOSTER PUMP -Pasi
(Offline)

30th March 2007, 08:45	#20 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,635	Re: air driven Vs manual booster Quote: (Originally Posted by jmurba) where did you read or heard about a 200b european model ? It is alluded to in the link I posted... which was why I posted it. The report also listed the price as $2500 (at the time it was written) Looks a very tidy little booster. __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
(Online)

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