Scuba Tank Sizes Steel

If properly maintained steel tanks tend to last longer than aluminum tanks.

Scuba tank sizes steel.

Size of steel vs aluminum tanks. The size and working pressure of your scuba tank can be determined by looking at the markings on the crown of your tank. High pressure steel scuba tanks allow up to 3442 psi to be pumped into a cylinder while low pressure steel scuba tanks can fill up to 2640 psi. A scuba tank s capacity is determined by its size and pressure rating.

But if budget is not a concern steel tanks are the way to go. 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. Steel tanks have thinner walls than aluminum tanks with an equal pressure rating. For example most aluminum tanks from the smallest 6 cuft pony bottle to an 80 cuft tank have a fill pressure of 3000 psi.

Scuba diving steel tank boot size 7 25. The pressure in a scuba tank is measured in psi pounds per square inch or bar in metric. The information is believed to be accurate but is not guaranteed. Most steel and aluminum tanks have a diameter of 7 25 inches with a height of around 20 to 30 inches.

Steel dive tanks weigh more due to the material in which it s made requiring less weight to be used in a weight belt. Because less material is needed to make them steel tanks are usually slightly smaller and lighter than aluminum. Compiled by huron scuba snorkel adventure travel inc. For a 6 cuft bottle this means at 3000 psi the tank contains 6 cuft of air.

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. The difference between pressure volume it should be noted that the pressure of a tank is not a measure of the size or volume of a tank. Scuba diving tank cylinder strap weight webbing belt with stainless steel buckle. 170mm rubber scuba diving cylinder tank boot for 12l steel tanks.

The service life of a properly cared for aluminum tank is more controversial but some dive shops won t fill an aluminum tank manufactured before 1990 due to concerns regarding sustained load cracking of aluminum alloys in wide use. This is a benefit for some scuba divers. The information below was compiled from a variety of sources including luxfer pressed steel tank catalina and oms. Divers direct carries 4 sizes in blue.

Steel tanks are usually more expensive than aluminum tanks. The service life of a properly cared for modern steel scuba tank is widely considered to be 50 years or more.