Scuba Tank Markings de-mystified for you.If you have a look closely at the top of your scuba tank you will notice a whole lot of tank markings. Each of these tank markings have a purpose and are important to determine whether the scuba tank is suitable for you as a diver. the information on the tank should also be referred to when your tank needs re-testing or filling. Scuba Tank Markings
If you have a look at the tank markings on the above graphic you will see three rows of tank markings. Let's have a look at what the tank markings by row. Top Row Tank MarkingsM25 x 2 This identifies the Thread Specification and indicates the thread type and size. It is important to ensure the correct valve is used with your cylinder. UK Country of manufacture Luxfer Cylinder manufacturer P3173V/Luxfer 1234A Cylinder type number and serial number. This number is recorded by the manufacturer, in this case Luxfer so that the entire manufacturing history of your scuba tank can be traced. AA6061 T6 Alloy of Construction. Middle Row of Tank Markings11.6mmDesigned minimum scuba tank wall thickness 9.8kg Empty weight of the scuba cylinder. 7L Minimum water capacity in litres. PW232 BAR Working pressure, it shows the pressure that the scuba tank should be filled to. This figure should never be exceeded. PT348 BAR Test pressure, shows the pressure that the scuba tank should be tested to. This should also never be exceeded. Bottom Row of Tank markingsPS287 BAR AT 60 CThis is the service pressure and indicates the pressure which can develop inside the scuba tank at the temperature shown, don't confuse the service pressure with the working pressure. CE 0038 Mark of conformity to the Pressure Equipment Directive 97/23/EC and notifies body identification number. 2002 / 2 Test date, shows when your cylinder was first tested, with the year followed by the month or quarter of the test year shown in a circle stamped onto the tank. If you would like information on aluminium scuba tanks, have a look here. If you would like information on steel scuba tanks, have a look here. If you are interested to know more about Scuba Tanks then click here this will tell you all you need to know. Information kindly supplied by Luxfer.
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