Unlike other valves that seal with friction, Posi-flate's unique butterfly valve uses an inflatable seat to seal with air pressure. Thus it requires less torque and a smaller actuator, resulting in lower overall valve cost. Plus, the seat automatically compensates for wear, providing longer valve life.
Achieve up to 15 million cycles with the new Tork-Mate 890 Series extended life pneumatic actuators. Tork-Mate 890 Series actuators are ideal for 90° and 180° turn devices such as butterfly valves, ball valves, plug valves and damper valves and they meet the latest NAMUR standards.