4 Components of Fire Pump are Prone to Damage

First, Pump case for fire pump

In non-special cases, most of the fire pump cases are cast iron parts, unless a special corrosive medium, stainless steel structure. In the daily operation of the pump case of the fire pump, cracks may occur due to mechanical or thermal stress. When the pump is subjected to the impact of cavitation during work or is frozen when the water in the pump case is not drained in winter, it is also easy to be broken. If the damage is heavy and cannot be repaired, the new pump case should be replaced.

Second, the impeller of the fire pump

The impeller is an important working component of the fire pump. Compared with the pump case of the fire pump, the impeller is a component that is not easily damaged. However, starting from the fire pump as a whole, if the fire pump is frequently used, the impeller of the fire pump is prone to be damaged. Mainly manifested as cracks or being washed to make the blade thin or eccentric. At this time, the defect will be repaired or replaced as soon as possible.

Third, the pump shaft of the fire pump

The pump shaft of a general fire pump is easily damaged due to manufacturing quality, use or installation. Cracks, bends, journal wear, thread damage, etc. may occur on the pump shaft, and breakage may occur. If the damage is serious, it is recommended to replace the new pump shaft.

Fourth, the bearing of the fire pump

The bearing bush of the sliding bearing is generally cast from copper-tin alloy and has poor wear resistance. It is one of the most vulnerable parts for wear and burnout. The bearing bush can be repaired or replaced with new ones. Rolling bearings generally have an average service life of 25,000 hours, but they are improperly installed, have long service life or poor maintenance, and are also prone to wear or damage. For this reason, it is recommended to do maintenance work on a daily basis, regularly check the wear and tear.