Five maintenance knowledge of corrosion-resistant self-priming pump

Five maintenance knowledge of anti-corrosion self-priming pump 1. It is best to start up for 8~16 hours a day. Spare parts should be available for 24 hours continuous operation. Regular replacement and repair. The replacement period is usually two to three months. Dismantling and repairing will not affect production. Non-continuously running production can be repaired at any time. 2. When the transport medium ratio is greater than 1.2, an additional motor should be equipped, otherwise the Grundfos mechanical seal will affect the head or cause the motor to burn out. 3. After using for a period of time, it is found that the end face of the mechanical seal is leaking, which is caused by the wear of the carbonyl surface. The moving ring should be adjusted to loosen the two semi-circular screws of the stainless steel and stainless steel. It is suitable for pushing forward. It is better, because it is loose, leakage will occur, and the imported mechanical seal is easy to wear and affect the life of the mechanical seal. 4. Maintenance: remove the dirt in the pump casing, front and rear pump covers, impellers, and mechanical seal components, and wash them clean. The non-damaged cartridge mechanical seal can be used continuously. Check whether the two ends of the mechanical seal are damaged, and the end surface of the moving ring The fine metallographic sand that is less worn or scratched can be placed on a flat plate for smoothing, and it can be used continuously. 5. The disassembly sequence is: remove the motor, bracket, bottom plate screws, remove the mechanical seal cover, allow the water nozzle, loosen the moving ring snap ring bolts, the static ring pressure plate bolts, the front and rear pump cover bolts, and the impeller shaft pull rod. Loosen the set screws and unscrew 3~5mm. Hit the pull rod with a hammer. After loosening the impeller, remove the pull rod, impeller and mechanical seal. When removing the mechanical seal, you should manually operate it. Do not hit with a metal tool. Take care to prevent damage. Keywords: Grundfos mechanical seal, imported mechanical seal, cartridge mechanical seal