Overheating of the Pe Gasket is usually caused by the unfavorable conditions of excessive heat generation of the sealing surfaces of the centrifugal pump. Teflon O-rings turn blue or black, and O-rings harden and crack. The condition near the sealing surface is always serious.
1. The overheating of the O-ring is usually caused by the unfavorable conditions of the excessive heat generated by the sealing surface of the centrifugal pump. Teflon O-rings turn blue or black, and O-rings harden and crack. The condition near the sealing surface is always serious. Relevant corrective measures: Check the circulation of the sealing chamber of the centrifugal pump (if a cooler is installed, it should also be checked at the same time) to see if there is any blockage, etc. Check the pump for failures such as reduced suction capacity, dry running, slag formation, etc. Check the condition of the product according to the original regulations.
2. When a part of the O-ring is forced through a small gap, extrusion will occur. This extrusion can occur when seals are assembled or assembled with excessive force, or when operating pressures and temperatures are too high. O-ring extrusion can also occur when a large gap is formed between the elements when the dimensions are out of the limit when adjusting the shaft seal elements locally. PTFE O-rings are curled, and rubber O-rings are peeled or torn. Relevant corrective measures: Check the assembly method and operating conditions to ensure that the sealing parts are adjusted to the original design requirements or re-adjusted by the manufacturer.
3. When the O-ring is not properly selected, it will cause swelling, undercut, and other deformation and the consequence will not only cause the O-ring itself to lose its original performance and break but also prevent the sliding parts from moving.