How to change generator exhaust valve seat ring

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”