Qurter-turn Electric Actuator
Quarter-turn actuators are used to operate ball valve, plug valve or butterfly valve, damper valve, shutter valve and any quarter-turn or part-turn device.
1.0-90°rotation angle
2.Match butterfly valve, ball valve, louver valve, damper plug valve 3.Modbus Hart Profibus
Specifications
Compact structure, large output torque
Self-locking gear train maintains valve position when actuator is de-energized
Very good vibration resistance
Very easy setup - no specific tools required Adjustable mechanical travel stop to prevent overtravel
Removable drive sleeve for easy machining
All actuators come standard with emergency handwheel and mechanical position indicator
Structures
Mechanical end stop
• Electric actuators are equipped with adjustable mechanical stops to prevent possible overtravel during manual operation.
Position indicator.
•Visual position indicator can clearly indicate the current valve position. Infact, this indicator is mechanically connected to the valve shaft.
Travel limit switch
• Thanks to the cam block system, travel limit switch adjustment can be done with only a standard screwdriver. No special tools are required.
• Each cam can be set independently of the others.
•The cams are automatically locked in their respective positions, and once adjusted, are not affected by vibration.
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.
Motor thermal protection
•Built-in motor temperature switch can prevent the motor from overheating.
Removable drive bushing
• The output drive sleeve can be easily removed from the actuator without the use of any special tools to accommodate the valve shaft.
Lubricating
• Gears are designed to ensure a lifetime of grease lubrication, which greatly reduces the need for periodic maintenance
Features
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.
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)
Technical data
Dimensions
Extensive control options
Standard controls (no integrated controls)
The customer provides the control logic to process all data received from the actuator electrical contacts. The mains reversing starter is installed in the customer's own cabinet.
INTEGRAL+ control
The INTEGRAL+ control system is fully configurable and can perform all actuator control functions including generating status reports, fault handling, protection systems and command processing. It provides local control that can be disabled locally or from a remote location. The reversing starter is integrated in the control unit.
POSIGAM + control
The POSIGAM+ control (actuator of the third category) is based on the same electronic platform as the INTEGRAL+, but includes a positioning function. Proportional signals are used to control the actuator (setpoint) and signal the actual position of the valve (feedback).
About us
Founded in 2014, Freya mainly deals in fluid control products and services such as actuators, electric valve actuators, electric valves, etc., focusing on the process industry field. It has long been committed to providing professional fluid control solutions for process industries such as electricity, steel, building materials, and water treatment. According to actual working conditions, through necessary field surveying and technical briefing, it provides customers with safe, economical, and environmentally friendly selection and design, strictly supplies and guides installation and commissioning in accordance with contract requirements, and hands over for use when the standards are met. Thanks to the trust of the majority of users, through long-term and large-scale on-site field services and effective accumulation of technical experience, the company accurately understands the real needs, pain points, and expectations of users and market equipment manufacturers. The intelligent electric actuators developed and produced by the company based on its own patents are reliable, durable, easy to use, cost-effective, and guaranteed service. Being close to users, providing full-process services, bottom-up services, and value-added maintenance services to escort users' production is our differential advantage. Freya SD intelligent electric actuators and valve electric devices provide a two-year warranty after installation and commissioning, and free after-sales service for life. Technical quality and commercial credit are the foundation of the company's survival and the two wheels that drive the company's development. The only standard for evaluating our work results and demonstrating our existence value is that users feel assured, worry-free and happy. The company's many customers are distributed in the fields of thermal power, petrochemicals, coal chemical industry, water treatment, etc., all over the country, including more than 100 end users belonging to the five major power generation groups, the three major nuclear power groups, Sinopec, PetroChina and local energy groups.
Certificates
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