Fail Safe Return 400Nm 30S IP68 Explosion Proof Valve Actuator

The DCL-Ex Series features advanced, fail-safe, explosion-proof actuators engineered for critical emergency response in hazardous environments. Upon the restoration of backup power following an emergency shutdown, the intelligent fail-safe system automatically drives the valve to a pre-set safety position—either fully open or fully closed—even in the complete absence of external control signals. Additionally, a robust self-locking mechanism prevents hunting and drift, ensuring the valve remains securely locked in place under load. Designed for compatibility with over 90% of explosive gas environments (excluding underground mining), these actuators boast a highly reliable, field-proven track record, with over 10,000 units operating safely in extreme conditions for more than a decade. To guarantee global safety and operational compliance, the DCL-Ex Series is fully CSA-certified (meeting UL/CSA Zone and Division system standards), ATEX certified, and independently verified by SGS for both CE and RoHS 3 compliance.

1. Quarter turn operation with mechanical limits
2. Heavy duty motor with thermal overload protection
3. Rugged IP68/NEMA 4X aluminum alloy housing
4. C3 level corrosion resistance with powder coated, 1000 hours salt spray
5. Explosion proof grade ExdIICT4 for Zone system and Group C, D T4 for Division system
6. Over torque protection is available
7. Self-locking high strength gear train to keep last known position
8. Standard ISO5211 direct installation
9. Manual override with Allen wrench or handwheel
10. CSA certification in process per UL and CSA standard/CE marked/ATEX