Thank you very much to all for your answers. The client has a Sundine mechanical seal. I repaired it, but it didn't work very good. I have checked the quality of lapping, and all i can think is that the problem is the material of the faces. I have used carbon graphite fenol resin...
I am trying to find out wich are the best mechanical seal faces for a single seal in cryo aplication, at very high rpm.
Original faces come as metal ( i don't know wich one) and something else, that seems to be carbon , but i am not sure, becouse is painted blue. Does anyone know anything about...
