1.Welded body-bonnet joint to eliminate the shell leakage;

2.Double block & bleed (DBB) with sealing in both directions (DIB-1&2 upon request);

3.Primary metal secondary soft (PMSS) with differential hardness between the ball and seat to prevent galling of the substrate

4.Light weight, extremely reliable configuration;

5.Low fugitive emission and lowest maintenance;

6.Extended stem for cryogenic or buried underground service;

7.ISO 5211 top flange for installing electric actuators.