• Extended service life and low maintenance costs due to unique helix coil stem design, which enables friction-free opening and closing
• Improved product quality, efficiency and safety with tightness performance up to ANSI FCI-70-2 Class VI
• Easy in-line inspection and maintenance enabled by top-entry design
• Reduced corrosion due to heavy wall thickness in excess to ASME/ANSI B16.34
• Improved personnel safety from blowout-proof stem that meets international standards of API 600 and 6D

Other Features:

• Combination of a quarter-turn ball valve with a linear movement of non-rotating stem
• Trunnion mounted design
• Reduced or full bore
• Single seat (no valve body cavity)
• Unidirectional or bidirectional
• Metal to metal seat with stellite welding overlay (soft seat insert on request)
• Outside screw and yoke for adjusting of stem packing
• Blowout proof stem
• Suitable for very high frequent cycling operations (switching valves)
• Tight shut-off by means of application of external mechanical force and not dependent on differential pressure
• Proper selection of materials to avoid galling and high friction
• Protected lower trunnion against solid particles intrusion
• Clearance control to consider high/low temperature shrinkages
• Self-cleaning closure member