composite cylinders

[DrDuktayp]

The local LDS was filling several composite tanks the other day. He is a 'tech' diver and instructor. Anyhow, I was asking about them and he was quick to point out that the composite construction had very poor bouyancy characteristics. He said that the composite construction was great for rescue work, but not for diving.

Now maybe the bouyancy might be okay for those that dive wet.

DrDuktayp

 

[Briney Deep]

The advantage is light weight & high capacity would be very suitable for the
cave diver or anyone with need for larger capacity tank. As a twin tank set they would give tremendous duration. There is a buoyancy penalty as for damage its like anything else abuse it it won't last long. Sold an old deer rifle shop copmmented on lack of wear response, 6 years in Infantry you learn how to carry one.
Tank Specs
Luxfer 106 Composite Cylinder with Xs Scuba Din Valve, White
Avaliable at leisurepro.com
Fiberglass hoop wrapped composite cylinder
High 106 cuft capacity
4350 psi service pressure
Inlet threads - 7/8" x 14 UNF (small hole)
Requires 300 bar DIN valve (included)
Fifteen year service life
Required hydro test every three years
DOT - special permit 12479
No permit for use in Canada
Pressure 4350 psi/300 bar
Capacity 105.2 cu ft/2976.4 liters
buoyancy - FULL -4.8 lbs/-2.20 kg
buoyancy - HALF -0.9 lbs/-0.41 kg
buoyancy - 500 psi +2.1 lbs/+1.41 kg
Weight - Empty 33.8 lbs/15.3 kg
Outside Diameter 7.39 inch/188 mm
Cylinder Length 26.1 inch/662 mm

 

[rjack321]

Great time for an update to a 6yo thread! :banana: