Pumps in Asia wearing parts and maintenance 1, pump casing are generally cast iron parts, it is subject to mechanical or thermal stress of the role of easy to crack. When the pump at work because of the impact of cavitation or in the winter did not let go of the water in the pump shell is also easy to break when frozen, such as the damage can not be repaired should replace the new pump shell. 2, the shaft is generally carbon steel parts, but because of manufacturing quality, use or installation and other reasons are also vulnerable to damage. The shaft may crack, bend, journal wear, thread damage, etc., may also be a fracture accident. If serious damage can not be repaired, the new shaft should be replaced. 3, the impeller is an important working part of the pump, made of cast iron. Due to manufacturing quality and use and other reasons are also vulnerable to damage. The impeller may be cracked, cavities or perforations may be formed on the surface due to cavitation, and the blades may be thinned or worn for a long time, or even crushed by debris. Some defects can be repaired; some defects can not be repaired, that is, new impeller should be replaced. 4, plain bearing bush is cast bronze tin alloy, wear resistance is poor, is one of the most vulnerable wearing parts and burn out, the bearing can generally be repaired, but also replace the new one. Rolling bearing general average life of 5000 hours, but improper installation, use a long time or poor maintenance, but also easy to wear or damage. In addition to some of the rolling bearings can be exchanged for new parts, generally have to replace the whole piece. 5, the mouth ring, also known as leakage or wear rings, it is one of the most easily worn parts of the pump. Can be repaired after wear can also be replaced by new. When replacing a new leak ring, its diameter should be impeller inlet diameter to configure. If the outer diameter of the impeller inlet wear, turning can be machined to eliminate groove marks and oval, and then configure the reduced diameter of the leak ring, the outer diameter of the impeller intake can be turned three times. 6, the filler will harden with a long time to lose its elasticity, will make the pump leaks, leaking, the general replacement of new packing. 7, oil seal is a rubber product, easy to wear and aging, generally have to replace the new pieces. (Editor: Xiaoxia QQ:) Recommended reading: 2017 exhibition information
Emergency Downlight,Led Emergency Downlight,Led Downlight With Battery Backup,Downlight Emergency
NINGBO JIMING ELECTRIC APPLIANCE CO., LTD. , https://www.feituosafety.com