How to take measures to prevent freezing of water pumps and fire fighting water Pump in winter

(1) Empty the water inside the water pump and add water when in use to prevent the energy-saving water pump from freezing and cracking.

(2) To avoid this phenomenon, when not in use for a long time in winter, it is necessary to close the inlet and outlet valves, open the drainage device of the circulating water pump, and drain the water pump. The pump casing is usually made of cast iron or stainless steel, and the expansion coefficient of the metal is relatively small, so the pump casing will expand and crack when the water pump freezes internally in winter.

(3) When starting again, it is necessary to pay attention to exhaust first, so that the pump body is filled with water to avoid damaging the machine seal during dry rotation. At the same time, it is necessary to check whether the pipeline is blocked by ice.

(4) If the circulating pump freezes, pour hot water or boiling water into the water pump to melt the ice, or heat the water pump casing.

(5) Using insulated water pumps. Add steam or hot water to the insulation layer to prevent the pump from freezing.

(6) When using a centrifugal pump, add water.

(7) Place the water pump in a room temperature environment above zero degrees Celsius. In winter in the north, the outdoor temperature often reaches -10-30 degrees Celsius. After good maintenance, not only can it extend the service life, but also make full use of the efficiency of the water pump. The pump casing is usually made of cast iron or stainless steel, and the expansion coefficient of the metal is relatively small. Therefore, in winter, when the circulating water pump freezes int