ANSI Class 6 Seats

[bourne03]

Hi,

When I was reading, I came across this ANSI Class 6 Seats
in valve section. May I know what is the specification it
refers to ?

Hope to know.

Bourne

 

[maham]

good day,
valves which are under high prssuer need more than one seat for insuring enough stability to the spindle.
i hope this information will be enough.