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fuyangby@126.com
86 15188770013
The maintenance convenience and applicable working conditions of packing shaft seals
Convenience of maintenance
Simple structure and easy maintenance:
The structure of the packing shaft seal is relatively simple, consisting of a packing box, packing ring, and gland. This simple structure makes the packing shaft seal more convenient for maintenance, without the need for complex tools and techniques.
Low replacement cost:
The cost of packing for shaft seals is relatively low, and the cost of replacing packing is also relatively low, making it suitable for frequent replacement conditions.
Regular replacement is necessary:
Due to the gradual wear and tear of the packing during operation, it is necessary to regularly replace the packing to maintain the sealing effect. Although this increases maintenance frequency, the cost and time cost of each replacement are relatively low.
Applicable working conditions
Low viscosity liquid pumps such as water pumps:
Packing shaft seals are suitable for pumps that transport clean water or other low viscosity liquids, and can provide stable sealing effects under these operating conditions.
Not suitable for transporting valuable, explosive, and toxic media:
Packing shaft seals are not suitable for transporting valuable, explosive, or toxic media, as any leakage of these media may cause serious safety accidents or economic losses.
Not applicable to high temperature and high pressure working conditions:
The sealing performance of the packing shaft seal is poor under high temperature and high pressure conditions, and it is prone to leakage. Therefore, it is recommended to use mechanical seals or other higher-level sealing forms under these operating conditions.
Suitable for working conditions with significant axial displacement:
The packing shaft seal allows for significant axial movement of the shaft, making it suitable for working conditions that require axial movement.
Not suitable for working conditions with large radial runout of the shaft:
The packing shaft seal requires high radial runout of the shaft. If the radial runout of the shaft is large, the sealing effect of the packing shaft seal will significantly decrease.
Suitable for rotation and reciprocating motion:
Packing shaft seals are not only suitable for rotating shafts, but also for reciprocating and helical shafts, with a wide range of applications.
summary
Packing shaft seals have been widely used in many working conditions due to their simple structure, easy maintenance, and low cost. However, it also has obvious limitations, such as not being suitable for transporting valuable, explosive, and toxic media, as well as high temperature and high pressure conditions. When selecting a packing shaft seal, comprehensive consideration should be given to the working conditions and economy to ensure the best sealing effect and maintenance convenience.
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