Electric linear actuators EL series for modulating and open-close duty of control and process technology to operate control valves.
The self-locking stem/stem nut is driven by an electric motor via a gearing. Load and limit switches define the stops for the end positions.
LINEAR ELECTRIC ACTUATORS Type EL
Product Description
MAIN FEATURES
– Valve protection against excessive force due to load-dependent seating.
– Comfortable manual operation when disengaging the actuator motor.
– Mounting to valve made via yoke or mounting flange DIN 3358.
The design enables easy connection to all types of valves.
Standard version is suitable for Adcatrol valves.
– Generating a defined closing force in the end position leads to constantly tight shut-off of the valve.
– A robust metal cover protects efficiently against external contamination and manipulation.
– The actuators are in enclosure protection IP 65 (EL12 IP43) and are designed for rugged industrial use.
– 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…10 V, 0 (4)…20 mA), or fieldbus systems.
– Easy supplement to actuator with optional devices due to modular design.
– Limit switches, easily adjustable, for stroke limitation (not necessary for Adcatrol valves) or as signal for intermediate positions.
– Integrated, adjustable stroke setting to nominal stroke over the complete stroke range (without exchanging pinions, …).
– Actuators with 230V (50Hz) and 220V (60Hz), have a tolerance of more or less 10%.
