Luxfer Cylinders

The goal of the installation process is to install a valve with the least amount of torque or tightness that will make a leak-tight seal that lasts throughout the use of the valve-cylinder assembly. 

All-metal Luxfer 6061 aluminum alloy (L6X®) cylinders—To remove paint from an all-metal cylinder and prepare the surface for repainting, blast with plastic, glass or other soft media just long enough to remove most of the old paint.

Luxfer Gas Cylinders has received an increasing number of inquiries about the difference between “bowed” and “bulged” aluminum cylinders. The pictures and information below are intended to clarify this important difference.

Investigators continue to believe that the July 27, 2004 incident in Luraville, Florida was caused when an operator was about to fill oxygen into a scuba cylinder that was not designed for oxygen use, and most probably the valve and/or cylinder had not been purged of all organic matter.

Regulatory authorities are investigating the death of a woman who was injured while attempting to fill a scuba cylinder with pure oxygen.

In the United States throughout 2003, Luxfer Gas Cylinders conducted a trade-in program for older Luxfer scuba cylinders made from 6351 aluminum alloy from 1972 through June 1988. That trade-in program ended on December 31, 2003.

Between 1987 and 1988, Luxfer Gas Cylinders discontinued use of 6351 aluminum alloy and began using a proprietary version of 6061 aluminum alloy for all its aluminum cylinder models manufactured in the United States.

Traveling with Scuba Cylinders

Dates by models when Luxfer changed the aluminum alloy in its scuba tanks from 6351-T6 to Luxfer’s proprietary 6061-T6 alloy.

Please note the following product safety notice issued by Abysmal Diving, a distributor of Luxfer scuba cylinders.

Certain unauthorized modifications to Luxfer aluminum cylinders could remove metal or alter the cylinder design