In scuba diving, the Compressed Air Bottle Connection refers to the connection between the valve of the compressed air cylinder and the regulator. Because you assemble this yourself while you are putting on the equipment, it is important to know more about it.
Fundamentally there are two types of connectors: The variant according to DIN, as well as the INT variant.
Types of Compressed Air Bottle Connection
DIN-Connector
Like the name says, this one is made according to the provisions of the German Institute for Standardization (DIN). Thereby you screw the first stage of the regulator directly with the thread of the cylinder valve. There are two different models: One is authorised for 200 bar, the other one for 300 bar.
INT-Connector
While the DIN variant is usual in Germany above all, the INT variant is the one that is more common internationally. It is also called “Yoke-System”. Here you screw the first stage onto the cylinder valve with the help of a clamp screw and seal the opening with a so-called O-Ring.
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