Regarding the sequence of valve operation during backflow in the sulfur tank
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I’d like to ask everyone! Generally, when operating pumps or similar devices, the principle of turning them on first and then off applies! However, the sulfur inlet pipes for the two large sulfur tanks in our facility both lead in from the bottom of the tanks. In that case, should we close the valve of the inlet pipe of the tank that is currently in use first, and then open the valve of the inlet pipe of the backup tank, when there is backflow? (The unloading station has been informed to stop sulfur unloading.) If the spare tank is activated first and the tank in use is shut down, could this cause the sulfur from the main tank to be transferred into the spare tank?
Since unloading has already stopped, it should be turned off first, then turned on again, and finally unloaded. If unloading does not stop, turn it on first and then off to prevent pressure buildup
Thank you! So, if unloading isn’t stopped and the machine is started first before being turned off, will the situation I mentioned above occur?