Common Scuba Tank Sizes

Standard psi in an aluminum scuba cylinder is 3000.

Common scuba tank sizes.

There are many sizes of scuba tanks but you will find common standards throughout the industry. The most popular tank size that is used by recreational divers is the ones that hold 80 to 100 cubic feet of air. 100 cubic foot or even 117 cubic foot tanks are good options for this these tanks are also popular among sport nitrox divers who stay at depth for longer periods of time. Aluminum cylinders are negatively buoyant when.

The 2640 psi low pressure steel tanks are preferred by nitrox and technical divers who expect to be blending their gases using the partial pressure method. There are however smaller tanks but the reason that this size range is more common is because they are able to provide sufficient air to most divers without them being in risk of reaching the no decompression limits. The holding capacity of scuba tanks is measured in pressurized cubic feet. The most common service pressures seen in modern scuba tanks are 2640 psi 3000 psi 3300 psi 3442 psi and 3500 psi.

80 cubic foot tanks are the most popular among recreational divers and are also the most commonly found tanks on the water. Most recreational divers find that an 80 to 100 cubic foot tank is sufficient for their underwater breathing needs. The most commonly used rental tank is an aluminum 80 meaning a tank that holds 80 cubic feet of air and is made from aluminum. It is the same physical size as the aluminum 80 but holds more air.

If you consume a lot of air and want to increase your bottom time it s common to dive with larger tanks.