Smallest compressor for diving

[skipmac]

Originally Posted by Imprezza72

Brownie also has a fill compressor haven't compared sizes though.
Custom Installations Of High Pressure Compressors And Dive Systems |™ Light Duty

Might be worth a look. Please post what you actually find as I will be in the same market in a year or so.
Thanks,
Bob

It has been a few years so things may be different now, but the last time I was at Brownies they were using a small Bauer compressor in their smallest system. They don't build the compressor but start with an existing unit and customizing for their market.

[hoppy]

Originally Posted by Kolouch

Hi, I´ve been looking for a while for really small diving compressor, which I could easily use on my boat. I´ve found a few (Bauer, Bavaria, Coltri, etc.), but still too big for my needs.
I´m looking for one, which would be single phase 230 VAC, motor maximum 1 kW. Charging rate is realy not important, 20 litres / min is sufficient enough for me.
Thank you for ANY recommendation, any information
Ales

My understanding is that you need a lot of power to get the compressor started and thus a 1kw might not be possible.

Given your 1kw requirement I assume you are planning to run from a genset?

I would like compressor one day, but so far the best option for me I've found is the Coltri petrol. I thought about the single phase 230v version but gave up when I realised the size of genset I needed.

[Roy M]

I just called Brownies, regarding their YP25SF-U. It's more than $12,000 and requires a 3.5 Kw generator to supply the energy required. It has a duty cycle of two hours, can fill a standard tank in a half hour, and requires a 45 minute rest between duty cycles. That would handle up to four tanks between duty cycles. I think I will be trying to find some dive boats in the vicinity of where I'm going to meet my refill needs. Here's the info: http://www.browniesmarinegroup.com/p..._tearsheet.pdf

[skipmac]

Originally Posted by Roy M

I just called Brownies, regarding their YP25SF-U. It's more than $12,000 and requires a 3.5 Kw generator to supply the energy required. It has a duty cycle of two hours, can fill a standard tank in a half hour, and requires a 45 minute rest between duty cycles. That would handle up to four tanks between duty cycles. I think I will be trying to find some dive boats in the vicinity of where I'm going to meet my refill needs. Here's the info: http://www.browniesmarinegroup.com/p..._tearsheet.pdf

As much as I like the guys at Brownies, they are addressing a high end market with a lot of their stuff and priced way beyond my means.

You can buy a Bauer JRII-G compressor for under $5,000. 5 HP gas engine so you avoid the cost of a large generator.

[fstbttms]

Originally Posted by skipmac

As much as I like the guys at Brownies, they are addressing a high end market with a lot of their stuff and priced way beyond my means.

Everything Brownie's sells is priced at the high end of the range, hookah gear included. Always has been.

[Emerald Sea]

You may want to look at the Poseidon PE100, built by Bauer, smaller than their Jr model. 220V/50Hz, ours plugs into the wall socket. 225bar; 100L/min. 20min to fill a tank. Low maintenance. Very reliable. 44kg. L=70xW=36xH=40cm. We've been real satisfied with ours.

[windwalkr]

4500 PSI Shoebox Compressor for Multiple Gas Tanks, Costs ~700 - $1600
Used by NASA, Low power requirements - Super Small Size, User Serviceable.

check out shoeboxcompressor.com

[nimblemotors]

Note this compressor can NOT be used for breathing air.
It also needs to have the o-rings replaced all the time, like every hour use or something crazy stupid only cheap paint ballers would tolerate, and needs another compressor also, so not small at all when you combine them both.

There just isn't anything on the market like the OP wants as far as I've found,
so I'd be most interested to if anyone else knows of one.

Originally Posted by windwalkr

4500 PSI Shoebox Compressor for Multiple Gas Tanks, Costs ~700 - $1600
Used by NASA, Low power requirements - Super Small Size, User Serviceable.

check out shoeboxcompressor.com

[hellosailor]

Ales-
A friend of mine was looking into this and decided he'd rather just carry a spare tank and let someone else fill them. Apparently as you go to smaller compressors, the various filters (air filter, moisture trap) also get way smaller and way more expensive, so that the maintenance costs on the smaller compressors go up out of proportion. Or so he said.
Something you might want to check on, as well as the simple size/price of the compressor.

[Time2Go]

Long Time Advanced Open Water diver (PADI Certification)
and the idea of having a gas motor running the compressor
gives me the chills (all the spots that I have dived have used shore based
electric powerwith plenty of extra bottles on the boat)
You would need really good seperation and ventilation
as not to compress the exhaust of the gas engine into the tanks.
This set uo would definitly get my attention.
If you want to live long and dive be Paranoid

[thetopfiddler]

Hi guys- new user here. I routinely run my cornelius 130r1500 compressor....its a bit slow- but I can jam an aluminum 80 in 45 mins to 3300. These little shoebox (l actually store mine in a milk crate)sized compressors are very compact and will push to 4000psi...at which point the relief valve goes. It runs on 118v single phase and pulls 14.5 amps while charging a tank. These 130R1500 compressors were built in the 50's and mainly for military use. They use medical grade mineral oil to lubricate the three pistons and cylinders- low maintenance good system.

[windwalkr]

Originally Posted by nimblemotors

Note this compressor can NOT be used for breathing air.
It also needs to have the o-rings replaced all the time, like every hour use or something crazy stupid only cheap paint ballers would tolerate, and needs another compressor also, so not small at all when you combine them both.

There just isn't anything on the market like the OP wants as far as I've found,
so I'd be most interested to if anyone else knows of one.

O Rings need to be replaced every 70-100 hours, And because it has no Filtration, no control over the primary stage, and no water removal, it cannot be sold for Breathable air. However, if you are willing to risk it. (Or in my case I have the ability to test air) then it can be used on SCUBA cylinders. The Primary contaminate for the Second and third stage is the Delrin and Lithium Grease. The primary contaminate for the First stage depends on the shop compressor.

Another Option if one is handy with a Lathe and metal tools, would be to build your own compressor. They are not that complicated.

[captmikem]

“Apparently as you go to smaller compressors, the various filters (air filter, moisture trap) also get way smaller and way more expensive, so that the maintenance costs on the smaller compressors go up out of proportion. “

“ idea of having a gas motor running the compressor
gives me the chills You would need really good seperation and ventilation
as not to compress the exhaust of the gas engine into the tanks.”

My Utilis 10 uses two filters, primary is a simple paper filter, I change every 5 or so years, cost less than $10. The main trilux filter which removes carbon dioxide costs $32 and is recommended to change it every six months, I do not use it that much so change it once per year… not a lot of costs. There is also a 5 foot sectioned pvc tube you can put on the intake for people using a gas engine.

Michael

[hellosailor]

Time2-
Don't worry, PADI has a course for everything. The "Gas Compressor Monoxide Exhaust Diving Specialty" should take care of that for you. Of course, you'll also need to take the "Reduced Oxygen Content Saturation Diving" course as a prerequisite. And the open-water option for the course, if you're planning to dive offshore.
Honest. (VBG)


" They use medical grade mineral oil" Scratching my head but I seem to recall that there's no amount of any petroleum-based oil that is considered suitable for putting into the lungs, is there?

[Cowboy Sailer]

What do you mean, "The main trilux filter which removes carbon dioxide..."