1. Antistatic device (electrical continuity between ball, stem and body)
Static electricity is avoided which can cause sparks and fire in an inflammable/explosive environment
Contact safety throughout the entire life of the valve
2. Double antifriction washer
Less Breakaway Torque is granted
Less wear comparing with the execution with the single washer
3. "V" seals pack; 3 seals + o-ring
It ensures a perfect tightness even after a high number of cycles
4. Spring washer on the shaft seal
Guarantee of the recovery of the gap due to the wear caused by the rotational movement of the shaft avoiding leakage towards the outside part.
Allow to maintain energized the "chevron" seals (V), thus avoiding any leakage to the outside, against huge temperature excursions
5. Stretch Graphite seal
Tightness towards outside is granted, independently by the thermal excursions to which the valve is subjected
STANDARD FEATURES
• Floating ball, full bore. Available reduce bore version.
• Soft-seat seal TFM 1600
• Standard for connecting flanges: EN 1092-1; ASME B16.5
• Operating temperature see temperature pressure diagram
• Tightness Class: EN12266-1 rate A