What are the differences between used storage tanks and used pressure vessels?

What's the difference between used storage tanks and used pressure vessels?

The used storage tank is a container designed for liquid storage, featuring liquid level gauge interfaces, breathing valve interfaces, thermometer interfaces, CIP cleaning ports, sight glasses, explosion-proof lights, SIP ports, in/out liquid ports, and manholes, etc. Used storage tanks and used pressure vessels may appear quite similar in appearance, but what are the differences between the two?

1. A used storage tank is merely a tin can serving as a container, whereas a used pressure tank contains a rubber bladder, which can be used in water systems to absorb water hammer and pressure fluctuations, acting like a accumulator.

2. Used in closed-loop water circulation systems, the second-hand pressure tank plays a role in balancing water volume and pressure, thereby avoiding frequent valve opening and frequent topping up by the automatic补水 valve. In addition to accommodating expanded water, the expansion tank can also act as a water reservoir. By filling the expansion tank with nitrogen, it can achieve the volume to contain the expanded water. The pressure expansion tank can utilize its own pressure to parallelly replenish the pressure-regulating system. Each control point of this device is interlocked and operates automatically, with a small pressure fluctuation range, high reliability, energy efficiency, and cost-effectiveness.