Largest gas capacity aluminium cylinders?

[RedSeaDiver2]

I'm looking for some large aluminium cylinders with a very high gas capacity - need them for a specific project. I can't seem to find anything suitable though - does anyone have any suggestions? Can be U.S. or European cylinders etc. Can't fill past the rated fill pressure where this will be.

 

[Lostdiver71]

duplicate post, deleted.

 

[Lostdiver71]

The largest aluminum cylinder for scuba that I am aware of is either the Luxfer or Catalina 100 cubic foot. I do not believe Luxfer still manufactures them but Catalina does.

https://www.scuba.com/p-aquta1bk/catalina-100-cubic-aluminum-tank-with-pro-valve-black

 

[iain/hsm]

I guess its easier if you define your purpose your minimum size/capacity etc.

For example Pure Air Atmospheric Air Sampling Compressors use a Luxfer 20 litre 200 bar Aluminium cylinders. Each at 4000 litre (140 cubic feet) Free air capacity.

The cylinders are portable filled with unfiltered high pressure 200 bar atmospheric air for atmospheric air monitoring and the large volume at high pressure allows the same cylinder to be passed around the various laboratories for calibration purposes of the same gas in the PPB Parts per Billion range without contamination from the compressor or loss of the gas sample from low sample volumes.

The photo is the 20 litre size. It's a Luxfer UK England cylinder to UK/EU specs. Just a tad too tall to fit under the bench but light enough to lift.

 

[lowwall]

These folks claim to have 15 and 20L 200bar Al tanks. 4000L = 141 cubic feet

Scuba Diving Cylinder 15l Aluminum Steel 1~20l Diving Cylinder Scuba Tank Scuba Cylinder Diving Bottle Lung Air Tank - Buy Diving Air Tank Lung Tank Scuba Tank Diving Tank Diving Cylinders Lung Tank Diving Air Tank Scuba Diving Tank Diving Bottle Scu

Scuba Diving Cylinder 15l Aluminum Steel 1~20l Diving Cylinder Scuba Tank Scuba Cylinder Diving Bottle Lung Air Tank - Buy Diving Air Tank Lung Tank Scuba Tank Diving Tank Diving Cylinders Lung Tank Diving Air Tank Scuba Diving Tank Diving Bottle Scuba Diving Equipment Diving Air Tank Scuba Tank...

www.alibaba.com

 

[iain/hsm]

These folks claim to have 15 and 20L 200bar Al tanks. 4000L = 141 cubic feet

Scuba Diving Cylinder 15l Aluminum Steel 1~20l Diving Cylinder Scuba Tank Scuba Cylinder Diving Bottle Lung Air Tank - Buy Diving Air Tank Lung Tank Scuba Tank Diving Tank Diving Cylinders Lung Tank Diving Air Tank Scuba Diving Tank Diving Bottle Scu

Scuba Diving Cylinder 15l Aluminum Steel 1~20l Diving Cylinder Scuba Tank Scuba Cylinder Diving Bottle Lung Air Tank - Buy Diving Air Tank Lung Tank Scuba Tank Diving Tank Diving Cylinders Lung Tank Diving Air Tank Scuba Diving Tank Diving Bottle Scuba Diving Equipment Diving Air Tank Scuba Tank...

www.alibaba.com

If your OK with self importing your very own high pressure gas cylinders.

Made in China from recycled Budweiser Light cans under some Chinese claim of quality I guess.

Note the laser logo marking on the side wall. Expect a fail notice on your first visual for that little stunt.

 

[lowwall]

I'm not sure a VIP is an issue.

The OP didn't specify where these were to be used or what they were to be used for, but presumably not in the US and perhaps not mounted to a diver.

 

[happy-diver]

Note the laser logo marking on the side wall. Expect a fail notice on your first visual for that little stunt.

These came from a dive shop in Aussieland, the staff knew they were duds, the owner wanted to discuss it

Asked me to help with return postage as it was expensive, timewasting lying thieving bully

 

[BoltSnap]

perhaps not mounted to a diver

The time a tank explodes is mostly when it is being filled, not when it is strapped to a diver's back. I wouldn't get anywhere close to a Chinese tank, especially if it doesn't have the European and US licenses/certifications.

We recently started to see these "cheap" Chinese-made AL 20L tanks here in Libya. No EU, UK, or US certifications.

 

[Tanks A Lot]

As I assume you are not looking for a SCUBA cylinder for that project, you have a lot of choice.

The largest from Luxfer would be the L930A at 88.8L water volume and 345bar service pressure. Catalina's M265 comes in at 46.4L water volume at 153bar.

I'd suggest you specifically look for medical or sampling cylinders, I'm sure you find something that suits your needs exactly.