DK-EXS Explosion-Proof Electric Actuator (50Nm-3000Nm) - ExdIICT6Gb & IP68 | DELCO
The DELCO DK-EXS Series is a robust Explosion-Proof Electric Actuator engineered for automation in hazardous environments (Zone 1 & 2). Certified to ExdIICT6Gb and rated IP68 (submersible), it provides safe and precise control for quarter-turn valves (ball, butterfly, damper). Available in torque ranges from 50Nm to 3000Nm, the DK-EXS supports On/Off or Intelligent Modulating (4-20mA) control, featuring a non-intrusive design with LCD display for oil, gas, and chemical industries.
Materiall:Aluminum alloy
Protection Grade:CT6+ IP67
Type:On-Off, Regulation,Intelligent
Features
Designed for critical safety, combining high-level explosion protection with smart, non-intrusive control technology:
✅Certified High-Grade Explosion Proof (ExdIICT6Gb)
Manufactured strictly to GB3836 and IEC60079 standards. The flameproof enclosure (Exd) allows internal explosions to occur without igniting the surrounding atmosphere. It is rated IIC T6, making it suitable for the most volatile gases, including Hydrogen and Acetylene environments.
✅IP68 Waterproof & Corrosion Resistant
The housing is robustly constructed from die-cast aluminum alloy with a specialized powder coating. It achieves an IP68 protection rating, ensuring complete protection against dust ingress and continuous immersion in water, ideal for outdoor or harsh chemical plant conditions.
✅Smart Non-Intrusive Control (LCD & Infrared)
The intelligent model features a high-definition LCD screen and supports Infrared Remote Control. Operators can set parameters, perform zero/span calibration, and diagnose faults without opening the cover, maintaining the explosion-proof seal integrity during commissioning.
✅Wide Torque Range & Voltage Versatility
Covering a broad torque spectrum from 50Nm to 3000Nm, the series fits valves from DN15 to DN600. It supports diverse power supplies including DC24V, AC110V, AC220V, and AC380V, offering flexibility for various site requirements.
✅Reliable Mechanics & Manual Override
Features a high-precision worm gear transmission for self-locking and stable positioning. In case of power failure, the integrated Manual Handwheel allows for immediate manual operation. The motor is equipped with overheating protection to prevent burnout under heavy loads.
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Industry Applications
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Oil & Gas
Electric actuators enable reliable remote shutoff and precise positioning for pipeline and process valves. Optional on/off or modulating control with feedback signals. -
Chemical & Petrochemical
Stable electric actuation for corrosive-duty applications. Supports modulating control and position feedback to match PLC/DCS requirements. -
Power Generation
Designed for power plants where dependable actuation and accurate positioning are required on steam/water auxiliary lines and balance-of-plant systems. -
Food & Pharmaceutical
Electric actuation for sanitary valve automation. Clean operation with configurable control and feedback—confirm enclosure and material requirements by application. -
Water & Wastewater
Ideal for treatment plants and pump stations—remote on/off or modulating control, position indication/feedback, and continuous field operation. -
HVAC & District Heating
Accurate valve actuation for energy-efficient HVAC networks. Smooth flow regulation with modulating control options.
Browse our case studies or talk directly with our engineers to discuss your application.
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