Safety accessories on the floor tank flow diagram for Class A and B liquids
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The first one seems to be a flame arrestor breathing valve; what are the other three safety accessories respectively?
In addition to the flame arrestor vent, in accordance with the standards for above-ground tanks holding Class A and B liquids, the following three safety accessories are also provided: 1. Pressure gauge: used to measure the pressure inside the tank, thereby preventing safety incidents such as tank rupture or leakage caused by excessive pressure. 2. Overflow valve: If the liquid volume in the tank exceeds the maximum capacity designed for the container, the overflow valve will open automatically to discharge the excess liquid, thereby preventing the tank from becoming overloaded and avoiding an increase in pressure. 3. Thermometer: Used to measure the temperature of the liquid inside the tank, ensuring that it remains within an appropriate temperature range and preventing safety issues caused by the liquid being too hot or too cold. .