Aluminum Scuba Tank Sizes

The capacity of a scuba cylinder is an important consideration.

Aluminum scuba tank sizes.

The capacity of any tank is measured in pressurized cubic feet. The information is believed to be accurate but is not guaranteed. Most tanks have capacities ranging from 50 to 120 cf with various compressed air pressures. The size of a scuba diving tank will determine its capacity which is an important consideration.

Back mounted cylinders range from 45 130 cubic feet plus. There is no perfect size tank for all diving types and all divers. Steel tanks have thinner walls than aluminum tanks with an equal pressure rating. Pony or bailout bottles can range from 6 40 cubic feet.

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. Aluminum and steel scuba tank sizes. Low pressure lp with 2400 2650 psi standard pressure with 3000 psi and high pressure hp at 3300 3500 psi. 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.

Standard aluminum tanks typically have a capacity of 80 cf with a. There are a lot of different types of tanks that can vary greatly regarding pressure and capacity. Most aluminum scuba tanks are rated for 3000 psi. How to choose the best scuba tanks size.

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. It is important to check the markings on the. Compiled by huron scuba snorkel adventure travel inc. Types of scuba tanks and pony bottles.

Pressure and size determine the volume of air a tank can hold its capacity. A scuba tank s capacity is determined by its size and pressure rating. A steel scuba tank is offered as a high pressure tank or low pressure scuba tank. Size of steel vs aluminum tanks.

An 80 cubic foot steel tank rated to 3000 psi will be slightly smaller than an 80 cubic foot aluminum tank rated to 3000 psi because the tank walls are thinner. The compact aluminum tanks and the standard al100 tank have a service pressure of 3300 psi. Scuba cylinders are made from either steel or aluminum materials. However you should never assume the size of your tank.

The most popular tank size that is used by recreational divers is the ones that hold 80 to 100 cubic feet of air. The information below was compiled from a variety of sources including luxfer pressed steel tank catalina and oms.