Best Booster for Rebreathers

[marc.collin]

The GB40-OL single action model.

can you give some performance time transfert to have an idea?

 

[marc.collin]

another brand i did not know: Wellness

Günstigstes WellnessModel: WSD40-OL 200-300 bar tragbare hochdruck luft angetrieben sauerstoff booster pumpe mit extra 1 sets dichtung kits - AliExpress 13

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

 

[rjack321]

can you give some performance time transfert to have an idea?

This is like asking how many angels can fit on a pin lol

What's the starting pressure?
What the destination pressure?
How fast is it cycling?

All will play a huge role

 

[Tassi Devil Diver]

can you give some performance time transfert to have an idea?

I have not kept any performance data, but very happy with its performance some four years on, no problems works well, does the job filling rebreather tanks and bailout tanks.

 

[marc.collin]

i hesitate between

xb30-ol, xbd30-ol, sb40-ol and gb40-ol

i saw then sb40-ol and gb40-ol maximum supply and outlet pressure are 4641psi
and
xb30-ol, xbd30-ol maximum supply and outlet pressure are 3480

i have a scuba diving compressor


sb40-ol and gb40-ol can be used with divinc compressor and the other can't?

 

[happy-diver]

regulate the pressure man

 

[marc.collin]

compresor 3.5cfm
it's a thought

so i don't know if i could install a Y, one side for my whips

other for the booster pump.
From this part i could put a pressure reducer : McMaster-Carr
or a first stage of diving regulator

bot in both case my compressor will run all the time and stop if pressure is over 4500... a lot of gas wasted

i found this image

 

[ofg-1]

Best Booster?? Someone else's.

 

[greeniguana]

compresor 3.5cfm
it's a thought

so i don't know if i could install a Y, one side for my whips

other for the booster pump.
From this part i could put a pressure reducer : McMaster-Carr
or a first stage of diving regulator

bot in both case my compressor will run all the time and stop if pressure is over 4500... a lot of gas wasted

i found this image

View attachment 862337

Or just keep a couple of tanks filled with air to use for drive gas. I had a GBD40-OL. It was almost too much for 13cf rebreather bottles. It only took 8-10 cycles to top them off from 1500 to 3000. However, it would top of a set of doubles without much struggle. I replaced it with a single cylinder GB40-OL. It's great for small rebreather tanks, but not as good for big tanks. The GB40 is easier to transport. If you do primarily OC, and need to fill big tanks in your garage, the GBD40-OL would probably be best.

 

[rjack321]

I would pass on a double acting booster for CCR bottles. They are meant to move large volumes of gas at more modest pressures - like OC doubles...

Either the 1:30 or 1:40 is fine. Don't worry about ridiculous 300bar outlet pressures, they are completely unnecessary and a giant waste of drive gas. Assuming you even have and need a CCR bottle rated for 300 bar.

Plan on buying a shop compressor and air drier to drive it.