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June 14, 2023

How should the oil seal be removed?

The disassembly method for oil seals can choose to use a hook to lift the gap of the transmission seat and pull out the Sealing treatment device. If there is dirt on the sealing device, professional cleaning and maintenance should be carried out before proceeding with the next disassembly work If the Oil Seal becomes loose after operation, the dynamic and static rings should be replaced as soon as possible and cannot be tightened again, otherwise the movement trajectory of the oil Seal will be changed due to friction, causing damage to the contact surface oil seal


In the production process of petroleum equipment, the generation of common harmful substances is an irresistible factor. Therefore, in order to prevent the outflow of harmful substances, oil seals or specialized sealing devices are often needed to create a tight sealing state. To ensure the normal operation of mechanical equipment seals and provide basic protection, the key is to choose appropriate sealing materials and install oil seals correctly


The installation of oil seals requires strict adherence to requirements. Any deviation in installation can lead to unstable operation of mechanical systems. Currently, the challenge faced by the oil and gas industry is chemical corrosive liquids. The installation error of the gland should not exceed 0.05 mm, and the gap error between the gland and the sealing shaft or sleeve should not exceed 0.01 mm, otherwise the seal may not be tight


The compression amount of the oil seal spring should comply with the installation regulations, and should not exceed or be short. The error should be within 2mm. If the oil seal spring is too long, it will increase friction and cause wear; If the spring is too short, it will cause insufficient specific pressure and seal failure
Secondly, the disassembly of oil seal components should be careful and careful, and simple and rough methods such as hammering should not be used to avoid serious damage and rupture of the sealing system components
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