Mechanical seal O-ring common faults and corrective measures

1, O-ring overheating
Overheating of the O-rings, usually due to excessive heat pump sealing tamper seals surface formed by the adverse conditions. Teflon 0-ring blue or black, 0-shaped rubber ring hardening and cracking. Close to the sealing surface is always the worst part of the situation.
Related Corrective Action: Check the circulation pump seal chamber case (if equipped cooler should also be checked) to see if there is blockage phenomena. Inspect the pump suction capacity reduced dry running, into the slag and other faults. Check the product based on the original provisions of the situation.
2, O-ring extrusion
A part of the O-ring is forced through a small gap will occur when the extrusion phenomenon. Or assembly of components in the assembly if the force is too large, or the operating pressure and temperature is too high, this extrusion phenomenon occurs. When adjusting seal element in place, if the size exceeds the limit, resulting in the formation of a large gap between the components of the situation also occurs O-ring extrusion. PTFE O-rings are curling, rubber O-ring being skinned or torn.
Associated corrective actions: Check the assembly and operating conditions to ensure that each part of the adjustment to the original Security ties design requirements or readjusted by the manufacturer.
3, O-ring failure
O-ring will occur when used as inappropriate swell, permanent deformation such as undercut, the consequences of the O-ring itself not only lose their original performance and fracture, but also to prevent the slider movement.
Related Corrective Action: Check the seal of the working conditions of the original product, see the material is appropriate, if appropriate, the response to the O-ring materials and dimensions, etc. re-matching.