Ringo Valvulas

Trunnion Valves

Bi-directional FlowStandard RV ball valves are suitable for bi-directional sealing.

Soft Seated ValvesThe seat design features a deep pocket with a protective lip which makes the design a long lasting design. The seat assembly consists in an outer metallic seat carrier with a soft seat insert. The soft insert is located into a groove in the metallic seat carrier.The complete seat assembly is floating inside valve body and it is energized by a set of springs which load the seat assembly against the ball preventing leakage from behind the seat.Seat assembly is provided with outer o-ring to avoid leakage through the seat carrier and a graphite back up ring which ensure the tightness in case the o-ring is damaged.

Metal Seated ValvesSimilar seat construction is done in case of metal seated valve. However the seat in this case consists only in a 6 metallic seat ring (without any insert). The surface in contact with the ball is hardfaced with Tungsten Carbide, stellite etc., achieving a minimum hardness of 42 HRC to stellite or convectional hardfaced and 78 HRC to Tungsten Carbide or special hardfaced. This makes the design long durable and reliable and able to achieve classes V & VI leakage class.