I've been looking into hardface coatings on pipeline Ball Valves and was wondering what the typical coating thickness was for HVOF Tungsten Carbide on balls and seats. Are there specific minimum/maximum coating thickness limits that give the best performance?
Does the thickness put down depend...
I'm looking into differences in ball valve design, especially with respect to Ball/Seat combinations in metal sealing applications.
From what I have seen to get bubble tight sealing, balls are match lapped to their seats, but is it usual to start with a seat which has an initial spherical...
