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.
| Type | Ex05E | Ex10E | Ex20E | Ex40E | Ex60E |
|---|---|---|---|---|---|
| Power | AC110V/AC220V | ||||
| Output Torque | 50Nm | 100Nm | 200Nm | 400Nm | 600Nm |
| Acting Time | 20S | 30S | 30S | 30S | 45S |
| Turning Angle | 0-90° | 0-90° | 0-90° | 0-90° | 0-90° |
| Motor Power | 10W | 25W | 40W | 90W | 90W |
| Rated Current | 0.24/0.15A | 0.57/0.30A | 0.63/0.35A | 1.12/0.64A | 1.18/0.67A |
| Total Weight | 3.0kg | 5.0kg | 5.5kg | 9.5kg | 10.0kg |
| Input Signal | 4-20mADC,1-5VDC,2-10VDC | ||||
| Output Singal | 4-20mADC | ||||
| Basic Error | not more than ±1% | ||||
| Reciprocating Error | not more than 1% | ||||
| Dead Space | 0.5%-5.0% adjustable | ||||
| Damping Characteristic | 0 times | ||||
| Repeating Error in Actuator | ≤1% | ||||
| Insulating Resistance | 100MΩ/500VDC | ||||
| Withstand Voltage Class | 1500VAC 1minutes | ||||
| Protection Class | IP67 | ||||
| Explosive-proof grade | Exd II BT4Gb | ||||
| Installation Angle | 360°at any angle | ||||
| Electric Interface | 2-M20*1.5 explosion-proof plug,clients should install corresponding explosion-proof cable connector when using according to the cable selected. | ||||
| Ambient Temperature | -20℃~+60℃ | ||||
| Optional Function | Over-torque protector/Dehumidify Heater/Passive contact switch | ||||
| Remark | Any other input or output signal needed, please specified in purchase order. | ||||
- Quarter turn operation with mechanical limits
- Heavy duty motor with thermal overload protection
- Rugged IP68/NEMA 4X aluminum alloy housing
- C3 level corrosion resistance with powder coated, 1000 hours salt spray
- Explosion proof grade ExdIICT4 for Zone system and Group C, D T4 for Division system
- Over torque protection is available
- Self-locking high strength gear train to keep last known position
- Standard ISO5211 direct installation
- Manual override with Allen wrench or handwheel
- CSA certification in process per UL and CSA standard/CE marked/ATEX
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