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Centrifugal pump mechanical seal static ring end face cracking common failure phenomenon is one of the most failed parts of the sealing element, then when these phenomena appear, the reason why? With this question, then the next Xiaobian tell you about centrifugal pump mechanical seal static ring end face cracking reasons. Centrifugal pump mechanical seal static ring end face of the reasons for the crack 1, the sealing surface installation clearance is too large, too late to take away the flushing liquid generated by friction heat; flushing fluid leak from the sealing surface gap, resulting in overheating and damage. 2, the liquid medium vaporization expansion, so that both ends of the expansion by the vaporization and separation, when the two sealing surface force fit, the destruction of the lubricating film resulting in the end surface overheating. 3, poor lubrication of liquid medium, combined with the operating pressure overload, the two sealing surface tracking rotation is not synchronized. For example, the speed of high-speed pump is 20445r / min, the center of sealing surface is 175px and the linear speed of pump is up to 75m / s. When there is a sealing surface, the hysteresis can not follow the rotation and the instantaneous high temperature causes the sealing surface to be damaged. 4, seal flushing fluid orifice or filter blockage, resulting in insufficient water, so that machine seal failure. Further reading: China Construction Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http: //mj.liuti .cn / (Service Hotline:)