Multi turn Electric Actuator
Compact structure, large output torque
Self-locking gear train can maintain the valve position when the actuator is de-energized
Very good vibration resistance
Very simple setup - no specific tools required
Adjustable mechanical stroke limiter to prevent overtravel
Detachable drive sleeve for easy processing
All actuators are equipped with emergency handwheel and mechanical position indicator as standard
Main features
Transmission gear
• The gear transmission system consists of 2 reduction stages: the first stage is directly driven by the pinion on the motor drive shaft, which is a planetary system. The second stage, driven by the satellite wheels of the planetary gears, consists of a worm gear and a worm gear.
Emergency handwheel
• In case of power interruption or failure of the control system, the presence of a handwheel allows the operator to easily manually drive the valve to any desired position.
Asynchronous motor
• Asynchronous motor technology provides the highest ratio of starting torque to nominal torque. Therefore, the maximum torque capability of the actuator is available to unseat the valve from the beginning of the stroke.
Positioning operation
• Weatherproof design
As standard, our actuators are protected by IP67 (NEMA 4) weatherproof enclosures in accordance with CEI 144 recommendations. Higher levels of protection are available on request (please consult us).
• Corrosion-resistant design
Our actuators can also be configured to operate in harsh environmental conditions such as: Industrial corrosive atmospheres (chemical, alumina plants, ie) Marine corrosive atmospheres (onshore and offshore)
Advantages
1. Easy to adjust the limit
2. Self-locking at all speeds
3. Continuous gear transmission between motor and valve
4. The main mechanical parts have excellent vibration resistance
5. No need for regular maintenance, gear lubrication is effective throughout its service life
6. The gear system has high efficiency and low wear
7. High performance, low noise
The hand wheel does not rotate during electrical control; automatic manual and motor operation switching.
Details
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