LINEAR ELECTRIC ACTUATORS EL
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ADCA LINEAR ELECTRIC ACTUATORS EL (1,2 kN to 25 kN) DESCRIPTION The EL series linear electric actuators are designed for operation of control valves in modulating and on/off services in process engineering and industrial applications. The self-locking stem nut is driven by an electric motor via a gearing. Load-dependent switches and/or mechanical limit switches define the stops for the end positions. MAIN FEATURES Modular retrofittable design. 24 V AC, 115 V AC, 230 V AC, 400 V AC 50/60 Hz and 24 V DC supply voltages. Manual operation with disengagement of the actuator motor. IP 65 (EL12 IP 43) protection. Valve protection against excessive force due to load-dependent seating. 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. Defined closing force in the end positions leading to tight valve shutoff. Stall proof synchronous motors (or brake motors for higher positioning forces) ensure highest positioning accuracy. Mechanical stroke indication via anti-rotation bar. Exact, backlash-free measurement of actual valve stroke by direct coupling to the valve stem. Universally usable actuators due to control via 3-point-step controllers, analogue input signals (0 to 10 V, 0(4) to 20 mA), or fieldbus systems. Limit switches are easily adjustable for stroke limitation or as signal for intermediate positions. OPTIONS AND ACCESSORIES: Electronic positioner. Additional limit switches. Potentiometers e.g. for 3-point-step control in closed loop. 0(4) to 20 mA electronic position feedback units. Heating resistor. Special coatings and finishes for aggressive environments. Actuation of ADCATrol control valves, or others on request. EL12, EL20, EL45, EL80, EL120 and EL250. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

ADCA TECHNICAL DATA MODEL Positioning speed (mm/min / mm/s) a) Power consumption – 230 V (W) Nominal current – 230 V (A) Type of motor b) Motor protection c) Type of duty acc. to IEC 34-1 Cable entry Electrical connection Switch off in end position Inside terminal board, terminal configuration according to electric connection wiring diagram 2 load dependent switches, max. 250 V AC, rating for resistive load: max. 5 A, for inductive load: max. 3 A Mounting position As desired, except downward position Ambient temperature Klüber Mickrolube GL 261 grease Position indicator Manual adjustment By...

ADCA MODEL Positioning speed (mm/min / mm/s) a) Cable entry Electrical connection Switch off in end position Mounting position Inside terminal board, terminal configuration according to electric connection wiring diagram 2 load dependent switches, max. 250 V AC, rating for resistive load: max. 5 A, for inductive load: max. 3 A As desired, except downward position Ambient temperature Klüber Mickrolube GL 261 grease Position indicator Manual adjustment Side handwheel Trapezoidal thread Connection type a) At 60 Hz, the positioning speed and input power increase by 20%. b) Syn – synchronous...

ADCA ELECTRICAL CONNECTIONS 3~ ASYNCHRONOUS MOTOR WITH BRAKE AND THERMOSWITCH 1~ ASYNCHRONOUS MOTOR WITH BRAKE AND THERMOSWITCH SYNCHRONOUS SYNCHROMOTOR WITH NOUS MOTOR THERMOSWITCH BASIC WIRING DIAGRAM INCLUDING OPTIONS Switch-off in both end positions is made via two loaddependant switches, e.g. twoway valves with upper stroke limit and three-way mixing valves. Switch-off in the lower end position is made via a loaddependent switch and on the upper end position via a mechanical limit switch, e.g. two-way valves without upper stroke limit. Control of three-phase actuators with...

EL250 216 668 260 70 125 45 / 65 22 100 41 M16 / M20 – M16 19 * Depending on valve stem thread. Can be course or fine thread. Remark: Stem coupling, yoke dimensions and design may vary depending on the ADCATrol control valve model. Refer to its corresponding information sheet or consult the manufacturer. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

ADCA ORDERING CODES EL Group designation EL series linear electric actuator Actuator model EL12 400 V AC 3~ 50/60 Hz Electronic positioner and teletransmitter assembly Without FG teletransmitter assembly and electronic positioner FG teletransmitter assembly PEL200 intelligent electronic positioner Limit switches Without additional limit switches One additional WE limit switch Two additional WE limit switches 2 Position feedback unit X Without position feedback unit ESR100 electronic position feedback unit Yoke design and coupling ADCATrol V16/2 and V25/2 series (DN 15 to DN 50 – 1/2” to 2”)...