[Asia Pump Network News] any machinery in use may be some of the more powerful parts loss, so we have to keep some parts for easy replacement. Now Xiaobian to say what are the pump consumables? Which common spare parts to prepare? Pump pump consumables 1, the pump casing is generally cast iron, if it is corrosive medium transport, the general use of stainless steel structure. It may be cracked by mechanical or thermal stress. 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. Of course, in the case of product quality assurance, if the normal use, pump housing life is quite considerable. Therefore, if the customer chooses the product, he does not need to be standing for the pump housing, including the pump body and the pump cover, which are not wearing parts. 2, pump shaft is generally carbon steel parts, commonly used 45 steel, 2Cr13 and so on. Due to 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 role of pump sleeve is to protect the shaft. If the packing seal, the sleeve to withstand the friction between the filler and the shaft. Bushings are generally free from friction if mechanical seals are used, but they may also be damaged by damaged mechanical seals during mechanical seal failure. Therefore, it is recommended that the sleeve as a wearing parts, standing. 4, the
Impeller is an important working part of the pump, for the case of conventional water transport, made of cast iron; for the transport of chemical media, made of stainless steel. 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. Therefore, although the impeller does not belong to wearing parts, but should also be standing. 5, bearing. Bearing bush is made of copper-tin alloy castings, wear resistance is poor, is the most vulnerable to wear and burn out one of the wearing parts, bearings can generally be repaired, but also replacement of new parts. Rolling bearing general average life of 25000 hours, but improper installation, long service life or poor maintenance, but also easy to wear or damage. So, for bearings, should be standing. 6, 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. Mouth ring should be as wearing parts. 7, shaft seal. Includes packing seal or mechanical seal. The filler will harden after a long time to lose its elasticity, will make the pump leak, leaking, the general replacement of the new packing. Mechanical seal life is generally 2 to 3 years, it should be standing. 8, oil seal is a rubber product, easy to wear and aging, generally have to replace the new pieces. 9, pump auxiliary seal. The inside of the pump is equipped with O-rings, rectangular rings, etc. These auxiliary seals are generally made of rubber or other non-metallic materials. Need to be replaced when overhauling. Further Reading: Pumps Valves pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro-channel :) (service hotline:)
July 15, 2023
