Fail-Safe Pneumatic Actuators
Critical safety mechanisms for industrial applications
Fail-Safe Positioning Fundamentals
Automatically reverts actuators to predefined positions (open/closed/neutral) when air supply fails, preventing uncontrolled process flows and equipment damage in oil & gas, chemical, and pharmaceutical sectors.
Spring-return actuators in fire systems close valves to isolate hazardous materials when air supply is lost, complying with ISO 13849 functional safety standards.
Design Considerations
Essential for life-critical environments where power/air failures could cause catastrophic consequences. Uses compressed springs to counteract pneumatic pressure.
May use redundant systems instead of fail-safe mechanisms where failure consequences are minimal.
Implementation Guidelines
| Factor | Consideration | Solution |
|---|---|---|
| Safety Standards | ISO 13849 compliance | Spring force calculations |
| Maintenance | Spring fatigue monitoring | Preventive replacement cycles |
| Cost Impact | Higher initial investment | Reduced downtime costs |
If you want to learn more about low-priced products, please visit the following website: www.xm-valveactuator.com
