| Customization: | Available |
|---|---|
| Power: | Pneumatic |
| Adjusted Form: | Switching Type |
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Product: Three Position Pneumatic Actuator
Introduction
This model is configured for three-position operation of valves , 0°-45°-90° or 0°-90°-180°. It can pause and maintain at the certain position during the valve travel.
How the actuator works
Position 1 (middle position)
Air source pressure enters port 2 and port D at the same time, air is discharged from port 4 and port C, port 2 moves as an internal piston, and port D is limited by the auxiliary piston push rod to limit the internal piston to be positioned at a predetermined intermediate position.
Position 2 (full open position)
The air source pressure enters port 2 and port C at the same time, the air is discharged from port 4 and port D, and the internal piston of port 2 continues to move.
Position 3 (full closed position)
Air source pressure enters port 4, air is discharged from port 2, and the internal piston moves to the middle direction to reach the fully closed position. 0-45-90 spring-return models are available. When the air is cut off or the air supply fails, the internal piston is forced to return to the fully closed position by the spring.
Features:
1. Adjustable positioning nuts;
2. Body surface anodic oxidated and Nickel plated;
3. Single acting and double acting exchangeable for single body;
4. Continuous and maximum torque output;
5. Superior seals ensure the safety in critical application;
6. ISO 5211 mounting for top flange of part turn valves;
7. Namur connection for accessories;
9. Optional manual override
Specification data:
| Air supply range | 2.5 bars -8 bars, Max 10 bars |
| Torque | Max 4300 Nm |
| Stroke | 0°-45°-90°, 0°-90°-180°or customized stroke |
| Working temperature | -40 ºC to 150 ºC |
| Ambient temperature | -20°C to 90°C |
| Optional accessories | solenoid valve, positioners, limit switch, filter, regulator, lubricator, etc |
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