Insufficient space can lead to friction between the impeller and the pump casing, causing wear. To increase backflow resistance, reduce internal leakage, and extend the service life of the impeller and pump casing, a sealing ring is installed at the junction of the inner edge of the pump casing and the outer edge of the impeller. The sealed space should be maintained between 0.25~1.10mm. Therefore,Fire PumpThe fire pump is primarily composed of components such as impellers, pump bodies, pump shafts, bearings, sealing rings, and motors. Although the types may vary, the overall structure is similar. Therefore, when selecting, users should focus on the main components, ensuring the equipment's operation and reducing damage. As a critical part of the fire pump, bearings can easily reach excessively high temperatures if used for extended periods, significantly affecting the equipment's operational efficiency. To better address related issues, it is essential to understand the causes of these problems.      

Axial shaft bending or misalignment in fire pumps can cause vibration, leading to bearing overheating or wear. Increased axial thrust, such as severe wear on the balancing disc and balancing ring in fire pumps, can significantly increase the axial load on the bearings, resulting in overheating or even damage. Insufficient or excessive lubricant (grease) in the bearings, poor quality, or contamination with dirt, iron shavings, and other debris can also cause overheating. Sliding bearings may overheat due to the lack of oil supply when the oil ring does not rotate properly. Poor static balance of the fire pump rotor can lead to increased radial force, adding to bearing load and causing overheating. Vibration in fire pumps during non-standard operating conditions can also cause bearing overheating. These are the reasons for the excessive temperature of fire pump bearings. Therefore, once such issues arise, we can inspect the causes mentioned above, identify the root cause, and perform excellent handling. Additionally, regular maintenance and inspections of the equipment should be conducted in daily life to avoid major problems and unnecessary losses.Fire PumpIn the event of leaks during operation, it's quite simple to reduce the equipment's power usage and cause damage. Therefore, we need to understand the causes and solutions for potential leaks in fire pumps to ensure their normal operation.