Explosion Proof Fail-Close Electric Actuator
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Fail-safe, spring-return, explosion-proof actuators offer torque ranges from 50 Nm to 260 Nm (445 in-lb to 2300 in-lb).
They are designed for fail-safe positioning of valves in the event of loss of electrical power , and include On-Off control and modulating control.
Complies with international explosion protection certifications, ensuring that the actuator is designed to prevent ignition in environments with combustible gases, vapors and dusts.
Marking according to II 2 GD Ex db IIB T4 Gb, Ex db h IIB T4 Gb, Ex tb IIIC T130°C Db, Ex tb h IIIC T130°C Db where classified as Zone 1 or Zone 2, containing Group IIA and Group IIB gases, Zone 21 or Zone 22, containing combustible dust atmospheres or a mixture of explosive gas atmospheres and combustible dust atmospheres. It is suitable for temperature classes T1 to T4.
Specs
- Control Type: On-Off or Modulating
- ISO5211 mount
- Robust, industrial use
- Ideal for Ball and Butterfly Valves
- 1/4 Turn (90°)
- Torques: 50 to 260 Nm
- IP68 (7m, 72h)
- Voltages: 224V DC/AC & 110/220V AC
- Duty Cycle: 50%
- Aluminum cover
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Conduit Entries: 1/2″ NPT
- Certifications: CSA | ATEX | IECEx
Applications
An explosion-proof fail-close electric actuator is an essential device in hazardous or potentially explosive industrial environments. Some of its main applications are described below:
Chemical Plants: Control the flow of hazardous chemicals, closing valves in the event of electrical failure, preventing spills or explosions.
Oil Refineries: Used to handle flammable products, ensuring that valves close automatically in the event of any failure, maintaining safety.
Natural Gas Plants: They allow the safe closure of valves in the event of a leak or fire, protecting both the facilities and the personnel.
Ventilation Systems: In environments where toxic gases are handled, they ensure that exhaust valves close if there is a loss of power, preventing the build-up of dangerous gases.
Power Generation: In power plants, they are used to control the flow of fuel and other fluids, ensuring a safe response in the event of failure.
Mining: In extraction and processing processes, they are used to handle flammable materials and prevent explosions.