This system consists of numbers of cylinders bundled in sturdy steel fabricated frame and all cylinders are connected by common manifold including pressure indicator, flow control valves, pigtails, pressure regulator, purge valve etc. It is normally used where large and continuous gas supply is required.
Over a period of usage, and due to climatic conditions there occurs corrosion and deterioration to the structure. Moreover, the cylinder has to be tested within the fixed interval as per the gas cylinder rules.