Centrifugal pump seal rings why the surface often crack?
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Centrifugal pump seal static and dynamic ring face cracks appear is a common failure phenomenon, mainly due to: 1 installation time sealing surface clearance is too large, flushing fluid too late to take away the heat generated by the friction; flushing fluid leak from the gap in the sealing surface Go, resulting in overheating and damage. 2 liquid medium vaporization expansion, so that the two ends by the expansion of the vaporization and separation, when the two sealing surface force fit, the destruction of the lubricating film resulting in the end surface overheating. 3 liquid medium lubrication is poor, combined with the operating pressure overload, the two sealing surface tracking rotation is not synchronized. 4 seal flushing fluid orifice or filter clogging caused by insufficient water to machine seal failure.