Composite cylinders periodic inspection items include visual inspection, internal inspection, bottle inspection, hydrostatic testing, internal drying cylinder valve inspection and leak test.
A composite cylinder periodic inspection cycle is generally once every 3 years. Useful lives specified in the standard according to product design life of execution.
(2) the use of the process, if found composite cylinders have severe corrosion, damage, or there is doubt on its safety and reliability should be tested in advance.
3 in stock or disable more than one inspection cycle time composite cylinders should be tested before the opening.