The sealing ring is leaking the medium. What should be done?

The causes and solutions for the sealing ring medium leakage are as follows:

1. Reasons for the leakage of sealing ring medium Installation issue

Improper installation process: The sealing ring may be scratched or abraded by the sharp edges of the contacting parts during installation, resulting in the failure of the seal.

Inappropriate pre-compression amount: If the cross-sectional diameter of the selected sealing ring is incorrect, or if the pre-compression amount is too large or too small, it will affect the sealing effect.

Excessive surface roughness of the sliding surface: If the surface roughness of the sliding surface is too high, it will increase friction and damage the sealing structure on the surface of the sealing ring. Material issues

Poor rubber quality: The rubber sealing ring may undergo excessive expansion or contraction in the medium, changing the sealing size and causing leakage.

Incompatible materials: The sealing ring material is incompatible with the medium, such as being unable to withstand high temperatures, acids, or alkalis, which will lead to the damage of the sealing ring.

Equipment issues

Axis sleeve wear: After repeated use of the axis sleeve, rough scratches and spots may appear on its surface, causing leakage of the seal.

Vibration and shock: Vibration or shock of the equipment may cause the sealing ring to loosen or be damaged.

Unreasonable design: If the pressure in the sealing chamber frequently changes significantly, or if the axial movement of the rotor component is too large, it will affect the sealing effect.

Environmental factors

High-temperature environment: High temperatures will cause the sealing ring to harden and crack, resulting in leakage.

Corrosive medium: Corrosive medium will erode the sealing ring material, leading to the failure of the seal.

III. Solutions for Sealing Ring Medium Leakage

Replace the sealing ring

Choose a suitable new sealing ring: Select a sealing ring with the appropriate material and specifications based on the equipment conditions, medium characteristics, and environmental conditions.

Pay attention to the installation direction: If an O-ring needs an O-ring retainer, the retainer should be installed on the low-pressure side.

Inspect and clean the equipment

Remove blockages or dirt: Check the equipment interior and remove possible blockages or dirt that may affect the seal.

Repair worn components: If the axis sleeve is severely worn, a new axis sleeve should be replaced promptly.

Optimize equipment design

Improve the sealing structure: For example, using a double-end face mechanical seal, improving the lubrication conditions, and enhancing the sealing performance.

Control equipment vibration: Strengthen equipment support to reduce the impact of vibration on the sealing ring.

Properly install the sealing ring

Follow installation specifications: Install the sealing ring according to the equipment manual or the installation guide for the sealing ring, ensuring that each step is in accordance with the requirements.

Apply lubricant: Apply an appropriate amount of lubricant on the sealing ring and contact surfaces to facilitate installation and reduce wear.

Enhance daily maintenance

Regularly inspect the condition of the sealing ring: Timely detect and replace aging or damaged sealing rings.

Keep the equipment clean: Regularly clean the interior of the equipment to prevent the accumulation of dirt that may affect the sealing effect.

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