Explosion Proof Electric Actuator - ATEX and IECEx Certified
Designed for hazardous and flammable locations with Ex db IIC T6 Gb & Ex tb IIIC T80℃ Db certifications
Product Overview
The explosion-proof actuator features specially designed casings, motors, and dedicated sealing components to prevent explosions caused by electric sparks or high temperatures. Certified with CNEx (Ex db ⅡC T6 Gb), it is widely used in hazardous areas including petrochemical plants, coal mines, and pharmaceutical facilities for controlling valves, pipelines, and equipment.
GRAT explosion proof electric actuator ensures maximum safety and effective protection against potential hazards. Engineered to withstand high temperatures, pressure, and flammable substances, it provides reliable performance in hazardous environments with Ex db ⅡC T6 Gb Ex tb IIIC T80°C Db certification.
Product Structure
The GRAT explosion-proof actuator features a robust aluminum alloy and stainless steel housing for maximum durability. Designed with an explosion-proof enclosure, it integrates a heavy-duty gear set, limit switch assembly, and potentiometer, providing reliable transmission and multiple feedback options for precise valve control.
Key Features
- Power Supply: AC 24V/110V/220V/380V, DC 24V
- High Efficiency: Low power consumption with high torque output
- Torque Range: 50-600N*m, actuation time 20-45S
- Ingress Protection: Dustproof and waterproof with IP67 rating
- High Accuracy: Hysteresis <0.5%, Dead Zone <0.5%, Feedback Error <0.5%
- Valve Adaptability: 0~90° rotation, compatible with ball valves and butterfly valves
- Control Signals: 4-20mA, 0-10V, Modbus communication
- Optional Functions: Dehumidification heater, passive contact switch, over-torque protection
Explosion-proof Performance
Flameproof Joint
Width of flameproof joint: L ≥ 12.5mm
Gap of flameproof joint: i ≤ 0.15mm
Epoxy Resin Adhesive
Over 10mm epoxy resin bond length ensures strength and sealing performance
Encapsulation
Over 20mm epoxy resin potting in cable through-holes
Threaded Flameproof Joint
Length of Thread Engagement: ≥ 8mm
Number of Engaged Threads: ≥ 5
Technical Specifications
General Specifications
| Power Type |
Electric |
| Material |
Aluminum Alloy, Stainless Steel |
| Certification |
CCC, ISO, CE |
| Torque Range |
50Nm, 100Nm, 200Nm, 400Nm, 600Nm |
| Power Supply |
AC 24V/110V/220V/380V, DC 24V |
| Ingress Protection |
IP67 |
| Control Mode |
On/off, Positioning, Throttling, Modulating |
| Input/Output |
4-20mA, 0-10V, Modbus |
| Valve Connection |
ISO5211, DIN3337, VDI/VDE 3845, Flanged, Wafer |
Model Representation
EA-600-Ex indicates an electric explosion-proof actuator with an output torque of 600 N*m.
Torque & Power Specifications
| Model |
EA-50-Ex |
EA-100-Ex |
EA-200-Ex |
EA-400-Ex |
EA-600-Ex |
| Output Torque |
50N*m |
100N*m |
200N*m |
400N*m |
600N*m |
| Ball Valve Adaptation |
DN15-40 |
DN50-65 |
DN65-80 |
DN80-100 |
DN150-200 |
| Butterfly Valve Adaptation |
DN32-50 |
DN50-125 |
DN150-200 |
DN200-250 |
DN300 |
| Action Time |
20S |
30S |
30S |
30S |
45S |
| Rotation Angle |
0~90° |
| Motor Power AC24V |
10W |
25W |
0 |
0 |
0 |
| Motor Power AC110V |
10W |
25W |
40W |
90W |
90W |
| Motor Power AC220V |
10W |
25W |
40W |
90W |
90W |
| Motor Power AC380V |
6W |
15W |
30W |
40W |
40W |
| Motor Power DC24V |
13W |
25W |
40W |
70W |
70W |
| Weight |
4.5Kg |
5.0Kg |
9.0Kg |
9.5Kg |
10.0Kg |
Additional Specifications
| Insulation Resistance |
100 MΩ at 500 V DC |
| Withstand Voltage |
1,500 V AC for 1 minute |
| Protection Rating |
IP67 |
| Explosion-proof Rating |
Ex db ⅡC T6 Gb |
| Installation Orientation |
360° adjustable |
| Electrical Interface |
2-M20x1.5 explosion-proof plugs |
| Control Circuit |
Type S/MS/PIU/SP/PCU/CPT/G/H |
| Optional Features |
Dehumidification heater, Passive contact switch, Over-torque protection, Field protection unit |
| Testing Standard |
JB/T8219-2016, GB/T 3836.1-2021, GB/T 3836.2-2021 |
Dimension Drawings
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