Triple-offset butterfly valves offer the best sealing and longest life of all butterfly valve designs. Here are some of the reasons they are chosen:
Triple-offset butterfly valves provides performance reliability and quality for the harsh conditions of critical process applications, steam isolation and temperature extremes .
The bi-directional zero leakage closure with a metal seat, even after extensive cycling, provides sealing integrity formerly associated only with soft-seated valves.
Low torque from quarter-turn action permits smaller actuators and lower cost.
Fire-tested designs per API 607, 5th Edition/ISO 10497-5 are available.
Compact design means easier installation since valves are lighter and require less pipe bracing.
Related recommendation:
THE MAIN CHARACTERISTIC OF BALL VALVE
THE DEFINITION OF AMERICAN STANDARD BUTTERFLY VALVE
Product recommendation:
ANSI Triple Eccentric Butterfly Valve
ISO 5752 SERIES 13 Triple Eccentric Butterfly Valve
DN700 Worm Gear Welding Triple Eccentric Butterfly Valve Gear