bauer junior nitrox

Barrie Law · 23rd April 2007, 12:51

Hi Iain,

I was away for the weekend so my apoligies for the delay in posting.

I have posted a couple of pictures taken at random from the Coltri Sub MCH 6 compressors and oil I have in stock and they look nothing like the picture of the stage you posted is that a very old picture or another manufacturers compressor.

I do appreciate Oxygen has to be treated with respect particularly when used under high working pressures but I do not consider 23% Nitrox to be pure Oxygen or as having the same characteristics as 100% Oxygen and I think that is something we will have to agree to differ about.

Thank you for your list of references but I still prefer to follow the equipment manufacturers own recommendations when it comes to the use and suitability in the real world.

Regards

iain-hsm · 23rd April 2007, 14:37

Hi Barrie

Thanks for your reply,
Now is there any chance of a reply from Coltri to my three original questions yet?

Re your three points:
1. Barry the picture I posted was a Coltri straight off the Coltri web site. Clearly an aluminium head on steel fittings hence why I sent in the references about aluminium and nitrox. Go look, it was still up today.

2. Barry we are talking about nitrox 40% through the Coltri/Bauer air standard oil lubricated compressors. It is not a matter of if we agree or differ. The references tell a totally different story. IMHO your reference to Nitrox 23% is just a fudge, its doesnt help the Cotri position here. Again I ask has it been tested on a higher percentage than that it is claimed to be suitable for?

3. The whole point of my post, is not a question of agrement or manufactures recommendations, this manufacturer has been caught short. Coltri are misleading you and others here, The product I fear has not been tested on nitrox other than with the Permea membrane, and Coltri have assumed that because the membrane can only produce 40% max have come up with the idea that this now is a safe process.

However now that risk has increased further to users by selling there standard air compressors now “suitable” for continuous blending.

Do you have full details on this oil you posted

I’m sorry but the real world is calling your bluff.

Barrie Law · 23rd April 2007, 21:10

Quote: (Originally Posted by iain-hsm)

Hi Barrie

Thanks for your reply,
Now is there any chance of a reply from Coltri to my three original questions yet?

Re your three points:
1. Barry the picture I posted was a Coltri straight off the Coltri web site. Clearly an aluminium head on steel fittings hence why I sent in the references about aluminium and nitrox. Go look, it was still up today.

2. Barry we are talking about nitrox 40% through the Coltri/Bauer air standard oil lubricated compressors. It is not a matter of if we agree or differ. The references tell a totally different story. IMHO your reference to Nitrox 23% is just a fudge, its doesnt help the Cotri position here. Again I ask has it been tested on a higher percentage than that it is claimed to be suitable for?

3. The whole point of my post, is not a question of agrement or manufactures recommendations, this manufacturer has been caught short. Coltri are misleading you and others here, The product I fear has not been tested on nitrox other than with the Permea membrane, and Coltri have assumed that because the membrane can only produce 40% max have come up with the idea that this now is a safe process.

However now that risk has increased further to users by selling there standard air compressors now “suitable” for continuous blending.

Do you have full details on this oil you posted

I’m sorry but the real world is calling your bluff.

Hi Iain,

The basis of your argument is any Oxygen level above 23% Nitrox is considered in your opinion to be Oxygen (use no OIL) I do not agree and that is not a fudge but a fact of life and hundreds of installations worldwide are safely using oil compressors to pump nitrox and have been without incident or I think you would have listed them along with your comprehensive previous Nitrox reference list.

I do think the real world needs affordable Nitrox solutions and Coltri Sub are leading the way in this field but it is also worth noting the standards you wish to apply to 23% Nitrox and treat that as 100% Oxygen is not necessary unless you happen to have an Oil Free agenda

Regards

diverreb · 19th May 2007, 04:48

Quote: (Originally Posted by ntokyo)

I have a Bauer Junior II and blend nitrox (under 40%) more than 3 years, no problem at all. Bauer even supplied me the synthetic oil for it.
On the manual, Nitrox is not mentioned. Helium is mentionned.

I would recommend the Junior for its robustness. No issue for Nitrox for me. I am very happy with it.

I've been using a Bauer Mariner for 10 years, first with a DNAX Membrane & more recently with a Nitrox Stik. I've been feeding 40% through it on a regular basis with no problems. I always use a high quality food grade synthetic oil and change it out every 50 or so hours.

I had the unit serviced a few years ago and there was no unusual wear or discoloration in any of the stages.

Richie

PS...Anyone want to buy a used High Capacity UBS DNAX Membrane... cheap?

23rd April 2007, 14:37	#32 (permalink)
iain-hsm Custom Title Allowed! Current Rebreather/s: MK 15.X Other CCR Other SCR Other Rebreather/s: Other CCR Other SCR Join Date: Mar 2005 Location: Loughborough England uk Posts: 347	Re: bauer junior nitrox Hi Barrie Thanks for your reply, Now is there any chance of a reply from Coltri to my three original questions yet? Re your three points: 1. Barry the picture I posted was a Coltri straight off the Coltri web site. Clearly an aluminium head on steel fittings hence why I sent in the references about aluminium and nitrox. Go look, it was still up today. 2. Barry we are talking about nitrox 40% through the Coltri/Bauer air standard oil lubricated compressors. It is not a matter of if we agree or differ. The references tell a totally different story. IMHO your reference to Nitrox 23% is just a fudge, its doesnt help the Cotri position here. Again I ask has it been tested on a higher percentage than that it is claimed to be suitable for? 3. The whole point of my post, is not a question of agrement or manufactures recommendations, this manufacturer has been caught short. Coltri are misleading you and others here, The product I fear has not been tested on nitrox other than with the Permea membrane, and Coltri have assumed that because the membrane can only produce 40% max have come up with the idea that this now is a safe process. However now that risk has increased further to users by selling there standard air compressors now “suitable” for continuous blending. Do you have full details on this oil you posted I’m sorry but the real world is calling your bluff.
(Offline)

23rd April 2007, 21:10	#33 (permalink)
Barrie Law RebreatherWorld Sponsor Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jun 2005 Location: Ireland Posts: 726	Re: bauer junior nitrox Quote: (Originally Posted by iain-hsm) Hi Barrie Thanks for your reply, Now is there any chance of a reply from Coltri to my three original questions yet? Re your three points: 1. Barry the picture I posted was a Coltri straight off the Coltri web site. Clearly an aluminium head on steel fittings hence why I sent in the references about aluminium and nitrox. Go look, it was still up today. 2. Barry we are talking about nitrox 40% through the Coltri/Bauer air standard oil lubricated compressors. It is not a matter of if we agree or differ. The references tell a totally different story. IMHO your reference to Nitrox 23% is just a fudge, its doesnt help the Cotri position here. Again I ask has it been tested on a higher percentage than that it is claimed to be suitable for? 3. The whole point of my post, is not a question of agrement or manufactures recommendations, this manufacturer has been caught short. Coltri are misleading you and others here, The product I fear has not been tested on nitrox other than with the Permea membrane, and Coltri have assumed that because the membrane can only produce 40% max have come up with the idea that this now is a safe process. However now that risk has increased further to users by selling there standard air compressors now “suitable” for continuous blending. Do you have full details on this oil you posted I’m sorry but the real world is calling your bluff. Hi Iain, The basis of your argument is any Oxygen level above 23% Nitrox is considered in your opinion to be Oxygen (use no OIL) I do not agree and that is not a fudge but a fact of life and hundreds of installations worldwide are safely using oil compressors to pump nitrox and have been without incident or I think you would have listed them along with your comprehensive previous Nitrox reference list. I do think the real world needs affordable Nitrox solutions and Coltri Sub are leading the way in this field but it is also worth noting the standards you wish to apply to 23% Nitrox and treat that as 100% Oxygen is not necessary unless you happen to have an Oil Free agenda Regards __________________ Barrie Law Rebreather World Store Supplying the Rebreather World Tel:US +19548403892 Fax:US+19543333792 Tel:EU+442071930496 Fax:EU+442077606344 Mobile+353876880628 Skype:barrielaw Email: barrie@rebreatherworldstore.com
(Offline)

19th May 2007, 04:48	#34 (permalink)
diverreb DE/MD/NJ Wreck Diver Current Rebreather/s: Optima Other Rebreather/s: Join Date: Mar 2007 Location: Dover, DE Posts: 563	Re: bauer junior nitrox Quote: (Originally Posted by ntokyo) I have a Bauer Junior II and blend nitrox (under 40%) more than 3 years, no problem at all. Bauer even supplied me the synthetic oil for it. On the manual, Nitrox is not mentioned. Helium is mentionned. I would recommend the Junior for its robustness. No issue for Nitrox for me. I am very happy with it. I've been using a Bauer Mariner for 10 years, first with a DNAX Membrane & more recently with a Nitrox Stik. I've been feeding 40% through it on a regular basis with no problems. I always use a high quality food grade synthetic oil and change it out every 50 or so hours. I had the unit serviced a few years ago and there was no unusual wear or discoloration in any of the stages. Richie PS...Anyone want to buy a used High Capacity UBS DNAX Membrane... cheap?
(Online)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

LinkBacks (?) LinkBack to this Thread: http://www.rebreatherworld.com/compressors-blending-mixing-and-booster-pumps/11348-bauer-junior-nitrox.html
Posted By	For	Type	Date
Compressors, Blending / Mixing and Booster Pumps [Archive] - Page 2 - Rebreather World Forums	This thread	Refback	7th June 2007 20:48