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Home → Catalogue → Pressure control → Control Valves → ADCATrol® Linear electric actuators ADCA ELF with fail-safe spring return, ATEX
Valsteam ADCA
ADCATrol® Linear electric actuators ADCA ELF with fail-safe spring return, ATEX

Specifications

  • Actuator construction

    Steel construction

  • Actuator type

    Electric linear actuator, fail-safe spring return

  • Actuator direction of action

    Direct action,
    Reverse action

  • Positioning force

    2 kN

  • Positioning speed

    from 0,3 to 5 mm/s

  • Rated stroke

    40 mm. (minimum 5 mm.)

  • Operation temperature

    from -10 ºC to +60 ºC

  • Enclosure protection

    IP 65 protection (IP 67 on request).

  • Control signal

    control via 2-point or 3-point-step controllers (standard),
    analogue input signals (0 to 10 V, 0(4) to 20 mA)

  • Supply voltage

    24 V AC/DC (standard),
    230 V AC and 100 V AC 50/60 Hz

  • Power consumption – 24 V

    9 W (ELF20), 15 W (ELF20.1), 25 W (ELF20.2)

  • Manual Emergency Control

    Via push-buttons (mechanical with handwheel on request).

  • Communication

    Analog signals 0(2) to 10 V, 0(4) to 20 mA.

  • EX protection according

    ATEX Ex / IECEx

Documentation

Technical data sheet(s)

ADCATrol® Linear electric actuators ADCA ELF with fail-safe spring return, ATEX

Product code: ELFXX6XE5XA1

Available on request

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DESCRIPTION

The ADCATrol ELF series linear electric actuators are compact and cost-effective and designed for operation of control valves in modulating and on/off services in process engineering and industrial applications. The actuator is equipment as standard with positioner, active feedback function and automatic commissioning.
In case of power failure/interruption, the ELF actuator runs, spring driven, into its respective fail-safe position (stem extended or retracted).

MAIN FEATURES

Compact and cost-effective.
Mechanical fail-safe function via spring-return.
Brushless DC motor controller with integrated positioner function, status display and automatic commissioning.
Manual operation with push buttons and parameter setting via DIP switches.
24 V AC/DC and 100 to 240 V AC 50/60 Hz supply voltages.
IP 65 protection (IP 67 on request).
Mounting to valves made via yoke or mounting flange DIN 3358, enabling easy connection to all types of valves. Standard version is suitable for ADCATrol valves.
Mechanical stroke indication via anti-rotation bar.
Universally usable actuators due to control via 3-point-step controllers and analog input signals (0 to 10 V, 0(4) to 20 mA).

OPTIONS AND ACCESSORIES

Additional limit switches.
100 to 230 V AC power supply module.
Position signal relays.
Heating resistor.
IP 67 metal cover.

USE

Actuation of ADCATrol control valves, or others on request.

AVAILABLE MODELS

ELF20, ELF20.1, ELF20.2

Documentation

Technical data sheet(s)

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