Electric Actuator - AQXL Range | Bernard Controls | Philippopoulos s.a.
Electric Actuator - AQXL Range | Bernard Controls | Philippopoulos s.a.

Electric Actuator - AQXL Range | Bernard Controls

Bernard Controls AQXL Electric Explosion-Proof Actuator

The AQXL series comprises electric actuators for quarter-turn operation, designed for small ball valves, butterfly valves, and plug valves in hazardous areas. Main models are AQX4L and AQX7L, providing 40 Nm and 70 Nm torque for quarter-turn applications.

Operation and Control

  • Duty classification: On-Off Class A per EN 15714-2.
  • Optional Inching / Positioning Class B for modulating service.
  • Power supply: 1Ph 85–260 V AC 50/60 Hz or 24 V DC.
  • 12 V DC available on request.
  • Options: position transmitter 4–20 mA out or positioner 4–20 mA in/out.

Construction and Connection

Actuator housing is cast aluminum, rated IP68 / NEMA 4X, polyester powder coated, with corrosion protection C4 per ISO 12944, C5 optional. Self-locking output, manual override via 10 mm hex drive. Mounting flange ISO 5211 F05/F07.

Explosion-Proof Certification

Certified for IECEx / ATEX IIB T6, db IIB T6 Gb and NEC500 / NEMA 7 Class I Div. 1 Groups C & D, Class II Groups E, F, G, T6. Ambient temperature -20 to +60 °C, low temperature option -40 °C.

Position Feedback and Limit Switches

End positions set via adjustable camblock. Includes 2 SPDT switches for open/close and 2 auxiliary switches for PLC or control panel feedback.

Applications

Used on small isolation valves in explosive atmospheres: chemical plants, storage tanks, fuel gas, utility networks, and process skids. Media compatibility depends on valve selection. AQXL selection is based on torque, 90° operating time, voltage, Ex certification, and feedback requirements.

FAQ

When to select AQXL over AQL?
When the installation area requires explosion-proof certification.

What is checked during maintenance?
NPT cable glands, grounding, IP sealing, camblock, SPDT contacts, manual override, and correct valve torque selection.

Datasheet and documents

Description

PRODUCT SPECIFICATIONS

TORQUE RANGE:

  • 40 Nm and 70 Nm

COMPLIANCE WITH INTERNATIONAL EXPLOSION-PROOF STANDARDS: ATEX, IEC-EX, NEMA 7...

TYPE OF CONTROLS:

> Electromechanical SWITCH

BC DUTY & MODULATING CLASSIFICATION:

  • On-Off: Class A
  • Inching / Positioning : Class B

ENVIRONMENT: IP 68 / C4 ( C5 ON REQUEST) / T: -20°C ...+60°C

LINEAR APPLICATIONS

PRODUCT BENEFITS

COMPACT & OPTIMIZED DESIGN

  • Super compact design
  • Product architecture adapted to customers’ requirements (70 Nm)
  • Multi-voltage (AC/DC) & multifrequency products : suitable whatever your location on the globe
  • 24VDC, 2 wires or 12VDC 2 or 3 wires available as an option
  • Short delivery time, even for voluminous projects, thanks to large production capacity.
  • Nameplate with ATEX, IECEx and CSA as standards to simplify delivery

EASY TO USE

  • Easy commissioning for quick installation on site: pre-wired version available (1-phase only),
  • User-friendly set up of travel limitation system with a standard screwdriver. Cameblock directly accessible at the front.
  • Positioner option (4-20mA)
  • Manual operation via manual hexagonal output: essential for emergency intervention
  • BC APP: Bernard Controls new mobile application to get access to full documentation and Assitance.

RELIABLE DESIGN

  • BERNARD CONTROLS design methodology built-up on the nuclear market highly demanding requirements
  • 80+ years of continuous experience and BC inventor of the compact quarter-turn electric actuator
  • Extended lifetime: more than 100000 cycles attained during endurance tests in laboratory.
  • Heavy duty design: full aluminum enclosure protected by durable powder coating, C4, IP68, large temperature scale.
  • Compliance with international explosionproof standards : ATEX, IEC Ex...
  • Self-locking at all speeds without any additional component
  • S4 Motor Service Duty. Up to 120 starts per hour at peak of operation.
  • Electronic torque limiter for reinforced valve security

Accessories & Compatibility