Mechanical seal leakage reason and solution

Mechanical seal leakage causes and solution - 2020 10 - 8 mechanical seal in use process, mechanical seal is there will be a leak, then the reasons of leaking and what is the solution? The following and see it. A, amount of spring compression ( Mechanical seal compression amount) Is too small. B, the amount of spring compression is too big, graphite ring crack. C, seal face width is too small, poor sealing effect. Treatment methods: seal face width, and the corresponding increase the spring force. D, compensation of seal ring floating poor performance ( Sealing ring is too hard or long with hardening or compression quantity is too small, compensation ring gap is too small) 。 Processing method: the compensation ring gap is too small, increase the space of compensating sealing ring. E, inlay loaded or bonding of dynamic and static ring joint leakage ( Set in process is poor, there is residual deformation and uneven material, adhesive uneven, deformation) 。 F, dynamic and static ring damage or crack. G, seal face serious wear and tear, compensation ability disappear. H, dynamic and static ring sealing end surface deformation ( End by the spring force is too large, friction increases thermal deformation or eccentric wear, sealing parts structure is unreasonable, insufficient strength, stress after deformation; Due to reasons, such as improper add technology sealing parts have residual deformation; When installation, uneven force caused by deformation) 。 Methods: replace defective or damaged seal ring.