Friction free ball rotation Balanced ball design Stationary seats design (primary metal-to-metal seal + secondary soft seal) Mechanically energized seal (true DBB) Low operating torque Angular stroke operation of the stem Full port design Self-cleaning Patented drive switch mechanism Compact in size Compatible with existing actuators Designed to comply with all major regulations and standards: API 6D, 607, 6FA, ASME B16.34, NACE MR0175) Ultra-long service life