Scuba Tank Sizes Chart

There is a lot of information listed on the crown of the tank and the order in which the information is listed varies from tank to tank but the codes are standardized and easy to read if you know what to look for.

Scuba tank sizes chart.

Standard psi in an aluminum scuba cylinder is 3000. The information below was compiled from a variety of sources including luxfer pressed steel tank catalina and oms. A diving cylinder scuba tank or diving tank is a gas cylinder used to store and transport the high pressure breathing gas required by a scuba set it may also be used for surface supplied diving or as decompression gas or an emergency gas supply for surface supplied diving or scuba. There are many sizes of scuba tanks but you will find common standards throughout the industry.

Scuba cylinder specifications for buoyancy and weighting calculations. Standard aluminum tanks typically have a capacity of 80 cf with a. 80 cubic foot tanks are the most popular among recreational divers and are also the most commonly found tanks on the water. Low pressure lp with 2400 2650 psi standard pressure with 3000 psi and high pressure hp at 3300 3500 psi.

Divers direct also carries the 40 cu ft 50 cu ft 63 cu ft and 100 cu ft. If you have better information or corrections please email it to us for. If you are already using steel. A scuba tank s capacity is determined by its size and pressure rating.

Compiled by huron scuba snorkel adventure travel inc. Steel scuba tanks are denser than aluminum tanks meaning you have to be less concerned with buoyancy issues especially at the end of a dive. The size and working pressure of your scuba tank can be determined by looking at the markings on the crown of your tank. The information is believed to be accurate but is not guaranteed.

When scuba divers calculate their buoyancy with an aluminum cylinder it is essential for them to know the relative buoyancy characteristics of their chosen cylinder at full pressure capacity and also at their minimum reserve 500psi. Most tanks have capacities ranging from 50 to 120 cf with various compressed air pressures. Cylinders provide gas to the diver through the demand valve of a diving regulator or the breathing loop of a. Faber s cylinders are appreciated worldwide by scuba divers who choose steel tanks for their aqua lung apparatus.

The al100 and some of the larger capacity high pressure tanks such as the hp117 and hp133 are also 8 inches in diameter although the hp120 is a 7 inch tank. Smaller than an aluminum tank of the same capacity a steel scuba tank is a more compact air supply solution a fact that becomes doubly important for twin tank setups.