Cheap, dinky little first stages...

Padowan · 28th November 2005, 11:45

I've seen these little tiny first stages for sale in a number of places, mainly sold on the premise of being used in a suit inflation system. Now, I'm assuming that a reg so small will not have particularly good characteristics if you tried to breathe off it, but does anyone see a problem with getting one, O2 cleaning it and using it for O2 (or perhaps dil of there's no OC fitted)?

***Beanie*** · 28th November 2005, 12:06

Will you ever stop how light do you want your unit

I would wonder how reliable they would be?

Juz · 28th November 2005, 12:19

Is there a published flow rate and Interstage pressure?

Is it adjustable and if so, between what ranges?

Juz

Juz · 28th November 2005, 12:20

Also, does it have enough ports?

Juz

***Beanie*** · 28th November 2005, 12:22

Quote: (Originally Posted by Juz)

Also, does it have enough ports?

Juz

what les thatn two?
I thought they had two?
one for hose one for the OPV?

how many more do we need?

***EBT*** · 28th November 2005, 12:31

Ive seen a few in action now. They look sexy as hell, apart that is from the inordinate ammount I've seen that leaked! 9/10 seem to bubble.

If you want simple/reliable, I'd go for a DS4.

Padowan · 28th November 2005, 12:32

I've found this link to a manufacturers site. Can't speak Italian so can't translate it...
"Il primo stadio F5 è il più piccolo riduttore di pressione a pistone al mondo. Completamente in ottone cromato con due uscite di bassa pressione contrapposte 3/8”-24UNF e attacco DIN 200 bar. Disponibile in versione ARGON o per miscele ossigeno-arricchite. "

Although I don't understand a word of it, I do see 3/8"-24UNF, which is the thread of a LP port, no mention of any other thread sizes, so I think they might not have a HP port? Meaning that the 2 ports on there are LP ones...

Although you only need one LP port (you can get a "T" and fit a OPV on the opposite arm to the hose. =hose=T=opv= )

Padowan · 28th November 2005, 12:40

Found some more technical data that looks like they can have an IP of 6-8bar...

I also read (from using Babel fish):
" The distributing F5 is a reducer of pressure micro to piston. Completely in brass chromium plateed with two escapes of low pressure contrapposte 3/8"UNF and attack DIN Ossigeno/Argon. Escape of DEVOUT: from 6 to 8 Bars Employment: dumb ideal as it arranges of connection for watertight the Optional: valvolina overpressure "

So it does indeed look like it only has 2 LP ports, and no HP side.

Maybe minimal use then in the big scheme of things - I may still get one and replace the Apeks (US1) reg I have on my suit inflate, and re-commision that for O2 use instead.

Padowan · 28th November 2005, 12:44

Quote: (Originally Posted by Padowan)

Found some more technical data that looks like they can have an IP of 6-8bar...

I also read (from using Babel fish):
" The distributing F5 is a reducer of pressure micro to piston. Completely in brass chromium plateed with two escapes of low pressure contrapposte 3/8"UNF and attack DIN Ossigeno/Argon. Escape of DEVOUT: from 6 to 8 Bars Employment: dumb ideal as it arranges of connection for watertight the Optional: valvolina overpressure "

So it does indeed look like it only has 2 LP ports, and no HP side.

Maybe minimal use then in the big scheme of things - I may still get one and replace the Apeks (US1) reg I have on my suit inflate, and re-commision that for O2 use instead.

Haha. just read back that translation in full - there's some great literal translations in there - I particularly like the "dumb ideal", whatever that is!

Juz · 28th November 2005, 13:02

Quote: (Originally Posted by Beanie)

what les thatn two?
I thought they had two?
one for hose one for the OPV?

how many more do we need?

Beanie,

Dear dear Beanie.

We need 3.

LP - to feed the manifold that feeds the solenoind
HP - the gauge my boy, the gauge!
Plus the OPV!

Juz

28th November 2005, 11:45	#1 (permalink)
Padowan Proper Boffin Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Kent, UK. Posts: 511	Cheap, dinky little first stages... I've seen these little tiny first stages for sale in a number of places, mainly sold on the premise of being used in a suit inflation system. Now, I'm assuming that a reg so small will not have particularly good characteristics if you tried to breathe off it, but does anyone see a problem with getting one, O2 cleaning it and using it for O2 (or perhaps dil of there's no OC fitted)? __________________ Padowan The future's bright, the future's Yellow .....for now padowan.net - Latest Video: Scapa Flow Rebreather Diving
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28th November 2005, 12:06	#2 (permalink)
*Beanie* Politeness officer Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,163	Re: Cheap, dinky little first stages... Will you ever stop how light do you want your unit I would wonder how reliable they would be? __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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28th November 2005, 12:19	#3 (permalink)
Juz Team Kinky Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: London UK Posts: 146	Re: Cheap, dinky little first stages... Is there a published flow rate and Interstage pressure? Is it adjustable and if so, between what ranges? Juz __________________ ~KINKY DIVERS~ Because going down is fun We are all prompted by the same motives, all deceived by the same fallacies, all animated by hope, obstructed by danger, entangled by desire and seduced by pleasure. Welcome to Kinky Divers!
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28th November 2005, 12:20	#4 (permalink)
Juz Team Kinky Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: London UK Posts: 146	Re: Cheap, dinky little first stages... Also, does it have enough ports? Juz __________________ ~KINKY DIVERS~ Because going down is fun We are all prompted by the same motives, all deceived by the same fallacies, all animated by hope, obstructed by danger, entangled by desire and seduced by pleasure. Welcome to Kinky Divers!
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28th November 2005, 12:22	#5 (permalink)
*Beanie* Politeness officer Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,163	Re: Cheap, dinky little first stages... Quote: (Originally Posted by Juz) Also, does it have enough ports? Juz what les thatn two? I thought they had two? one for hose one for the OPV? how many more do we need? __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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28th November 2005, 12:31	#6 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 1,855	Re: Cheap, dinky little first stages... Ive seen a few in action now. They look sexy as hell, apart that is from the inordinate ammount I've seen that leaked! 9/10 seem to bubble. If you want simple/reliable, I'd go for a DS4. __________________ Eagles May Soar, but weasels don't get sucked into jet engines! Rebreather World Terms of service Real diving t-shirts for real divers
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28th November 2005, 12:32	#7 (permalink)
Padowan Proper Boffin Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Kent, UK. Posts: 511	Re: Cheap, dinky little first stages... I've found this link to a manufacturers site. Can't speak Italian so can't translate it... "Il primo stadio F5 è il più piccolo riduttore di pressione a pistone al mondo. Completamente in ottone cromato con due uscite di bassa pressione contrapposte 3/8”-24UNF e attacco DIN 200 bar. Disponibile in versione ARGON o per miscele ossigeno-arricchite. " Although I don't understand a word of it, I do see 3/8"-24UNF, which is the thread of a LP port, no mention of any other thread sizes, so I think they might not have a HP port? Meaning that the 2 ports on there are LP ones... Although you only need one LP port (you can get a "T" and fit a OPV on the opposite arm to the hose. =hose=T=opv= ) __________________ Padowan The future's bright, the future's Yellow .....for now padowan.net - Latest Video: Scapa Flow Rebreather Diving
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28th November 2005, 12:40	#8 (permalink)
Padowan Proper Boffin Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Kent, UK. Posts: 511	Re: Cheap, dinky little first stages... Found some more technical data that looks like they can have an IP of 6-8bar... I also read (from using Babel fish): " The distributing F5 is a reducer of pressure micro to piston. Completely in brass chromium plateed with two escapes of low pressure contrapposte 3/8"UNF and attack DIN Ossigeno/Argon. Escape of DEVOUT: from 6 to 8 Bars Employment: dumb ideal as it arranges of connection for watertight the Optional: valvolina overpressure " So it does indeed look like it only has 2 LP ports, and no HP side. Maybe minimal use then in the big scheme of things - I may still get one and replace the Apeks (US1) reg I have on my suit inflate, and re-commision that for O2 use instead. __________________ Padowan The future's bright, the future's Yellow .....for now padowan.net - Latest Video: Scapa Flow Rebreather Diving
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28th November 2005, 12:44	#9 (permalink)
Padowan Proper Boffin Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Kent, UK. Posts: 511	Re: Cheap, dinky little first stages... Quote: (Originally Posted by Padowan) Found some more technical data that looks like they can have an IP of 6-8bar... I also read (from using Babel fish): " The distributing F5 is a reducer of pressure micro to piston. Completely in brass chromium plateed with two escapes of low pressure contrapposte 3/8"UNF and attack DIN Ossigeno/Argon. Escape of DEVOUT: from 6 to 8 Bars Employment: dumb ideal as it arranges of connection for watertight the Optional: valvolina overpressure " So it does indeed look like it only has 2 LP ports, and no HP side. Maybe minimal use then in the big scheme of things - I may still get one and replace the Apeks (US1) reg I have on my suit inflate, and re-commision that for O2 use instead. Haha. just read back that translation in full - there's some great literal translations in there - I particularly like the "dumb ideal", whatever that is! __________________ Padowan The future's bright, the future's Yellow .....for now padowan.net - Latest Video: Scapa Flow Rebreather Diving
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28th November 2005, 13:02	#10 (permalink)
Juz Team Kinky Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: London UK Posts: 146	Re: Cheap, dinky little first stages... Quote: (Originally Posted by Beanie) what les thatn two? I thought they had two? one for hose one for the OPV? how many more do we need? Beanie, Dear dear Beanie. We need 3. LP - to feed the manifold that feeds the solenoind HP - the gauge my boy, the gauge! Plus the OPV! Juz __________________ ~KINKY DIVERS~ Because going down is fun We are all prompted by the same motives, all deceived by the same fallacies, all animated by hope, obstructed by danger, entangled by desire and seduced by pleasure. Welcome to Kinky Divers! Last edited by Juz : 28th November 2005 at 13:21.
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