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fuyangby@126.com
86 15188770013
Abrasion Standards and Their Importance
The wear between the impeller and the seal ring should be controlled within 10%. This standard is established based on the consideration of the operation efficiency of pump equipment: when the wear exceeds 10%, the efficiency of the pump will decrease significantly, and even failures may occur.
The relationship between wear and clearance
The clearance between the impeller and the seal ring is also an important indicator of wear. Generally speaking, the radial clearance between the seal ring of a new pump and the impeller varies with the diameter of the seal ring, usually ranging from 0.15% to 0.30% of the inner diameter of the seal ring. However, the maximum allowable clearance after wear should not exceed 0.4% to 0.8% of the inner diameter of the seal ring. This range is set to ensure that the pump operates efficiently without being too large, which could lead to a decrease in efficiency, nor too small, which could cause friction and damage between components.
Prevention of Abnormal Losses
In addition to normal wear and tear, the impeller and seal ring may also suffer abnormal loss due to improper assembly, misuse, etc. For example, an excessively small radial clearance during assembly may cause the mouth ring (seal ring) of the rotating part and the stationary part to contact and generate grinding when the centrifugal pump is running at high speed; excessive circular deviation of the rotating part and imbalance of static and dynamic balance may also lead to similar results. Therefore, it is necessary to strictly follow the technical standards for operation and inspection during assembly and use to prevent the occurrence of abnormal loss.
Summary and Recommendations
In summary, the wear standard of impellers and seal rings is an important reference indicator for the maintenance of pump equipment. To ensure the normal operation and prolong the service life of pumps, it is necessary to regularly check and replace components with wear exceeding the standard.
Tire Wear Inspection and Replacement Standards
As a crucial component during vehicle operation, the degree of tire wear directly affects driving safety and performance. Here is related information on tire wear inspection and replacement standards.
Recognition of Tire Wear
The degree of tire wear is related to factors such as vehicle mileage, driving habits, and road conditions. Tread depth is an important indicator for judging the degree of tire wear. Generally speaking, when the tread depth is less than 1.6 millimeters, it's time to consider replacing the tires. Owners can use coins or special tools to insert into the tread grooves and measure the distance between the coin or tool and the tread edge to determine the tread depth.
The standard for tire replacement
In addition to the depth of the tread pattern, it is necessary to consider the following factors comprehensively to determine whether it is necessary to replace the tire:
Tire Aging: When tires have been in use for too long, the materials will age, showing cracks or hardening. At this point, it's time to consider replacing them.
Tire Structure Damage: If the tire sidewall or internal structure sustains damage such as bulges or cracks, immediate replacement is necessary.
Mileage: When tires reach the manufacturer-recommended replacement mileage, consider replacing them.
Notes
To ensure driving safety, car owners should regularly inspect tires to identify wear and tear. Choose the right tires and seek professional advice. In short, understanding how to identify tire wear and the standards for replacement can help car owners replace tires in time, ensuring driving safety.
By following the above methods, you can promptly detect tire wear issues and take appropriate measures to ensure your driving safety and comfort.
This article originates from https://www.fuyangpumps.com/news/320.html. Please indicate the source when reprinting.
(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)
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