As the name suggests, a fire pump is a pump used for fire fighting. So, what should be paid attention to during the use of the fire pump?
1. A strainer should be installed at the end of the suction pipe to avoid sucking foreign objects.
2. The most common fault when the fire pump sucks water is the air leakage in the suction pipe.
3. Pumps and other fire-fighting equipment should be placed in a warm place in cold seasons.
4. Make all suction valves and drain valves flexible and convenient, and easy to operate the fire hydrant pump.
5. Do not let the fire pump run for a long time when the water outlet is completely closed.
6. Unless the water is going to be diverted right away, do not let the fire pump run without water.
7. Fire pumps that are not frequently used should be checked and operated regularly to ensure that emergencies are dealt with.
8. When the pump sucks water from ponds, rivers, lakes and other water sources, ensure that the water source is clean and separated from other debris.
9. Excessively long suction pipe is not good for the pump. In addition to increasing friction loss and reducing flow, cavitation will also occur.
10. The end of the suction pipe should not be too close to the bottom of the water source, otherwise it will be easily blocked. Generally, there should be a distance of 0.3m.
11. The free end of the suction pipe must be immersed in the water to a suitable depth to prevent air from entering the pipe. Especially when the flow of the pump is large, it must be immersed to the necessary depth. When the immersion depth is small, air enters the pipe and forms a small vortex on the water surface. When the pump is working at the maximum flow rate, it is recommended that the minimum immersion depth is 4 times the pipe diameter. When it is impossible to have a proper immersion depth, a baffle is placed at the end of the suction pipe to prevent air from entering.
