Generator inlet and exhuast valve &seat ring repalcement need proceed properly with manual procedure which often be ignored by engineers, Here follow is one case we workshop ever done for WARTSILA Generator for engineer reference.
1 Removal of the old ring
The exhaust seat ring can most conveniently be removed hydraulically
valve can be used.
1 Fit a scrapped valve to the seat and weld it to the seat by means of electric beam welding. Preferably the valve disc
should be machined to proper size to get a better welding. 继续阅读“How to change generator exhaust valve seat ring”