High pressure control valve Fine sealing and control performance. Extremely wear resistant. Timely delivery High pressure. ... 25 ,32 ,40 ,50,65 2,Seat ring diameter3,Rated flow coefficient4, Flow characteristic : Linear ,linear ,equal percentage5, Nominal pressure: 22 326 ... be used in medium temperature of ≤500°C2,rated flow coefficient and flow characteristics are based on the end into side.Main parts ...