During the long-term operation of high-pressure spray equipment, the stability of the sealing system is crucial. This is especially true for key components such as O-rings . Aging or improper installation of O-rings is often the root cause of equipment leakage, unstable pressure, or operational failures.
To ensure efficient operation and sealing safety of spray equipment, this article will detail the replacement methods and precautions for aging O-rings in spray equipment , helping you reduce maintenance risks and extend the service life of the equipment.
Detailed instructions for installing O-rings
- Clean the groove
Before replacement, be sure to use special tools or fiber-free wipes to thoroughly clean the residue, oil stains and aging debris in the sealing groove to ensure that the groove surface is clean and free of impurities. - Apply grease
to the lip of the new O-ring with a thin layer of special grease (it is recommended to use a polyurethane lubricant that is compatible with the raw materials) to reduce friction and avoid damaging the seal during installation. - Press
the O-ring evenly into the groove at a slow and even speed. It is strictly forbidden to use metal tools to hit or force it in to prevent local deformation or damage to the sealing ring. - Control the torque
when tightening the assembly parts. Keep the torque between 15-20 N·m to avoid shearing of the O-ring due to over-tightening or seal failure due to over-loosening.
Precautions for use and maintenance suggestions
- and recalibrate the installation torque after replacement to ensure that the new seal is in optimal working condition.
- For spraying equipment that is frequently started and stopped , it is recommended to install an anti-extrusion retaining ring and increase the cross-sectional diameter of the O-ring by 20% to improve pressure resistance and fatigue resistance.
- Regularly check the aging status of seals . It is recommended to establish a “500-hour replacement cycle file” to standardize the maintenance process and reduce the failure rate.
Conclusion: Small widgets, big impact
The operational stability of spray equipment often depends on “small components” like O-rings. Standardized replacement procedures and regular maintenance can not only extend the life of the equipment but also significantly improve the consistency and accuracy of foaming and spraying.
If you encounter difficulties in maintaining high-voltage equipment, please feel free to contact our team of engineers for technical support or customized solutions.