Derived from Metso’s traditional V-port segment valve series, the new two-way-tight, single-seat design is suitable for a wide range of applications and is available for R-series valves. The optional two-way-tight feature covers the size range from DN25 up to DN700 in all available pressure classes. The new design offers the possibility of combining control and on/off performance in a single valve assembly. The standard bi-directional shut-off classifications of the V-port segment valves are according to 10x ISO Rate D / FCI 70.2 Class IV; optional improved tightness classes are ISO Rate D / FCI 70.2 Class V at dp 20 bar. The two-way-tight option is available for both RA and RE valve series for all standard pressure classes and flange drillings. It is also available in all standard body materials. Other materials are available upon request.