The fire pump is one of the mechanical products. Like other products, the fire pump may fail during use. Among them, stuffing box overheating is a more common failure in fire pump failures.
- the stuffing box is not properly packed. Insufficient packing, or improper plugging or running-in, and too tight packing may cause the stuffing box to overheat. To solve this problem, it is necessary to check the condition of the packing and readjust or refill the packing.
- The filling or sealing of the electric fire pump in the stuffing box is worn so that air enters the pump casing. To solve this problem, it is necessary to check whether the packing or seal is worn, replace it accordingly, and check whether the lubrication is normal.
- The shaft sleeve of the fire pump is scratched. Solving this problem requires repairing, reworking, or replacing the bushing as required.
- The mechanical seal is damaged. To solve this problem, the mechanical seal needs to be replaced.
fire pump set - The packing is too tight or the mechanical seal is not adjusted properly. To solve this problem, the packing needs to be adjusted, and if necessary, it needs to be replaced with a fire fighting jockey pump.
After understanding the several reasons for the overheating of the stuffing box, you can carefully analyze which kind of situation causes the overheating of the stuffing box when a failure occurs, and then solve it in a targeted manner to restore the normal working function of the fire pump.