Repair instruction for Seat Ball Valve

[Rio Risnaldi]

Dear Engineer,


How are you?
Trusted you very well today.

By The way, I have Issue, That I found seat Ball have damaged on the sealing contact (As Per Picture). We dont have detail spec material, So we using Positive Material Identification (PMI) for identification material.

As the result, Base material seat is 416SS.

our first recommendation before using PMI, is:

"Cleaning, rebuild the contact surface of damaged area by tungsten carbide + machining + lapping."

after we known that material 416SS, we have other option for rebuild by weld using STELLITE 6.

Need your advice for the correct recomendation and instruction for repair, as soon as possible.

Thanks
Rio

 

[Dhurjati Sen]

Dear Rio Risnaldi,

Better to replace the seat with identical / new stellited seat.

Research and repair is just a waste.

Regards.

DHURJATI SEN

https://www.nace.org/people/dhurjatisen

 

So you need someone to do a work task for you, as soon as possible.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."