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

Electric Actuator - BT Range | Bernard Controls

Bernard Controls BT Multi-Turn Electric Actuator

The BT series comprises multi-turn electric actuators designed for valves with rising or rotating stems, such as gate valves, globe valves, and penstocks. For quarter-turn applications, the actuator is paired with a suitable gearbox. Direct torque range is 30–500 Nm, extendable up to 32,000 Nm with gear reducers.

Technical Specifications

  • Sizes: BT3, BT6L, BT6, BT14, BT25, BT50
  • Torque per size: 12–30 Nm up to 200–500 Nm
  • Output speed: 10–127 rpm, versions up to 180 rpm
  • Number of turns: 4 to 2450
  • Valve interface: ISO 5210
  • Duty classes: On-Off Class A+, Inching/Positioning Class B+, Modulating Class III+ per EN 15714-2

Control and Feedback

LOGIC and INTELLI+ versions include integrated control, reversing starters, position and torque sensors, local operation, and LCD display for position/torque/alarm. Torque is set non-intrusively from 40–100% of max torque. Options: analog positioner, 4–20 mA position/torque output, Modbus RTU, Profibus DPV1.

Construction and Environmental Ratings

Aluminum housing with powder coating, corrosion protection C4 per ISO 12944, C5 optional. Enclosure rating IP68 / NEMA 4X. Ambient temperature -20 to +70 °C, low-temp option -40 °C. Double sealing separates wiring and control compartments.

Applications

Suitable for water, steam, condensate, wastewater, industrial gases, and water treatment plants. Media compatibility is determined by the valve. BT selection is based on torque, number of turns, travel time, duty cycle, supply voltage, and feedback requirements.

FAQ

When is BT selected over AQ?
When the valve requires multi-turn operation or a gearbox for high torque.

What is checked during maintenance?
Cable glands, grounding, IP sealing, torque setting, travel limits, handwheel, alarm history, and feedback signals to PLC.

Datasheet and documents

Description

PRODUCT SPECIFICATIONS

TORQUE RANGE:

  • 30 to 500 Nm (direct mount)
  • Up to 32,000 Nm on request

10 TO 127 RPM (DIRECT MOUNT) & HIGH SPEED: UP TO 180 RPM (DIRECT)

TYPE OF CONTROLS:

  • Smart INTELLI+®(v3)

BC DUTY & MODULATING CLASSIFICATION:

  • On-Off: Class A+
  • Inching / Positioning : Class B+
  • Modulating : Class III+

WIRING: DOUBLE-SEALING AS STANDARD

> New terminal plate with pins for easy wiring

> Quick Connector

ENVIRONMENT: IP 68 / C4 UP TO C5-M / T: -20°C ...+70°C

Option low T° -40°C/option high T° +90°C (high T° for SWITCH versions)

PRODUCT BENEFITS

INNOVATIVE, RELIABLE & UNIQUE DESIGN

  • Fully new and unique design for Multi-turn actuation based on market requirements and BC design experience and methodology
  • Product architecture, torque range and speed range adapted to customers’ requirements
  • Heavy duty design: IP68, Double-sealing protection, powder coating (up to C5-M), low and high temperature versions (down to -60°Cand up to +90°C as an option)
  • Innovative features: new camblock system, adjustable torque sensor, new interior modularity for compact design, modular position sensor up to
  • 5000 turns...

ENHANCED PERFORMANCE FOR THE MOST-DEMANDING CONDITIONS

  • From 30Nm to 500Nm (direct) and more with gearboxes
  • Wide range of speed, from 10rpm to 180rpm
  • Wide stem acceptance with an easy to install and watertight stem cover
  • Self-locking at all speed without any additional feature*
  • High resolution modulating Class III+ (Duty Performance and Endurance Higher Level than Standard EN15714-2)
  • S4 Motor Service Duty on all models

EASY TO INSTALL & MAINTAIN

  • Easy commissioning: non-intrusive setting for LOGIC and INTELLI+® versions, quick connector option, configurable relays on electronic versions…
  • Large LCD display on LOGIC Version for user-friendly commissioning and local command. Easily orientable (4-way direction) with simple soft selection
  • Declutch-free manual override for quick intervention on site with double ratio as an option
  • Mechanical position indicator on SWITCH versions: check the position of your valve at a glance even in case of power cut
  • Fieldbus available as an option, included all market standard protocols : Profibus (DPV1, Single or Redundant), Modbus…

INTELLI+® ADVANCED CONTROL SOLUTION

  • User Friendly and Intuitive controls with LCD display that gives a clear status of the actuator and of the control system
  • Advanced monitoring and diagnostic functions of INTELLI+® Integrated Control: Emergency Shut Down, Partial Stroke Test, timer, alarm customization, programmable signalling relays, operation monitoring...

*except BT25 and BT50 at 120rpm and 180rpm

Accessories & Compatibility