A trunnion ball valve for sour gas service at 38C, 285 psig. What would be the best seal material?

Ball Valves, flanged ends raised face, threaded seat ring, controlled hardness, Body A216 WCB, regular port, ball SS 304.

How do you call a ball valve whose passage is smaller at the outlet than it is at the inlet?

Why do many ball valves show a "seal carrier" with a "carrier o-ring" on only one side of the ball?

The difference between choked flow and critical flow.We discuss critical pressure and critical temperature related to fluid phase limits.

In discussions with suppliers of valves (16" side monted on/of ball valve, type with trunnion mounted ball valve, direct action).

Fire shutoff valve(Ball valve),Is there any guidelines available for selection of ball diameter in ball valve?

Processed a strict pressure test on a C.S ball valve with DN300,600#, during the test there's no leakage. While 6 months later on site customer find a crack with 20mm length.