Electric Actuator For Butterfly Valve With Feedback Signal

Electric Actuator For Butterfly Valve With Feedback Signal

OVERVIEW

The Q / AQ Series electric valve actuator is specifically engineered and optimized for small-to-large diameter butterfly valves, ball valves, plug valves, and other equipment operating with a 90° rotary motion. Serving as a highly stable, durable, and precise quarter-turn actuator, the Q series satisfies the demanding requirements of various automatic control architectures and complex operational environments. The integrated design of the transmission mechanism significantly reduces overall physical dimensions, achieving a lightweight, compact footprint and clean modern aesthetic.

The unit incorporates a highly safe and reliable manual operating mechanism featuring fully automatic hand/electric auto-declutching-allowing emergency manual intervention without requiring manual lever engagement. With superior ingress protection ratings (IP65/IP67 standard, IP68 optional) and versatile structural configurations-including Flameproof Explosion-Proof type (ExdⅡBT4), Integral Switch type, and Intelligent Modulating type (4-20mA / 0-10V analog regulation)-the Q series provides seamless integration, exceptional reliability, and long-term trouble-free performance across global process automation pipelines.

FEATURES OF ELECTRIC ACTUATORS

1. Compact and integrated construction: Integrated transmission mechanism minimizes overall volume and weight, reducing pipeline space requirements and mechanical installation stress;

2. Lightweight exquisite housing: High-strength aluminum alloy die-cast housing with smooth finish and high-temperature baking paint effectively shields internal electronics and reduces electromagnetic interference;

3. Precision wear-resistant gearing: Precision worm gear and worm shaft are perfectly combined and harmoniously linked, providing high mechanical efficiency, minimal backlash, and long service life;

4. Fully automatic manual/electric auto-declutching: Patented manual handwheel mechanism achieves automatic hand/electric switching without manual lever operation, preventing injury when the motor starts;

5. Comprehensive dual travel & torque protection: Built-in electrical limit switches, external mechanical travel stops, and mechanical torque overload switches ensure complete valve and actuator protection;

6. High-starting-torque induction motor: Custom-engineered motor delivers high starting torque across full travel range, equipped with Class F insulation and built-in thermal protection;

7. Continuous high-visibility position indication: Top-mounted inspection window with high-contrast mechanical dial and pointer ensures clear, unambiguous valve opening status monitoring from a distance;

8. Flexible multi-standard mounting flange: Dual-flange design supports both ISO 5211 (F05 to F16) and direct FB-series flanges for universal, easy direct mounting on butterfly and ball valves;

9. External adjustable mechanical stoppers: Heavy-duty stainless steel travel stop bolts provide 0°~90° adjustability (±5°) to strictly prevent valve disc or ball over-rotation;

10. Weatherproof and explosion-proof enclosure: Radial O-ring sealing delivers IP65/IP67 ingress protection, with optional IP68 (10m 100h) and Exd IIB T4 explosion-proof ratings for hazardous areas;

11. Passive dry contact feedback: Provides independent open/close limit contacts, opening/closing intermediate signal contacts, and torque alarm signals for remote DCS/PLC monitoring;

12. Intelligent modular control options: Supports basic on-off, integral reversing starter (with local pushbuttons/selector switches), and intelligent modulating (4-20mA / 0-10V analog input/output);

13. Maintenance-free lifetime lubrication: High-performance extreme pressure synthetic grease ensures smooth, low-noise operation without requiring routine oil replenishment;

14. Vibration-resistant terminal block: Spring-loaded push type and heavy-duty screw terminals guarantee firm, vibration-proof electrical wiring connections;

15. Arbitrary installation orientation: Suitable for installation at any angle in pipeline networks (horizontal motor shaft and upward/horizontal electrical box recommended);

16. Wide environmental adaptability: Operates stably in ambient temperatures from -20°C to +60°C (optional -40°C to +70°C) and relative humidity up to 95%.

PRODUCT ADVANTAGES

Diversified needs

Industrial piping and automated valve installations span across global process sites with vastly different operational, climatic, and environmental challenges. Not only are the pipeline media and valve torque characteristics critical in selecting electric actuators, but on-site operating environments-ranging from desert heat to offshore marine humidity and sub-zero Arctic freeze-are equally vital. FRY Q series electric actuators guarantee safe, stable, and highly responsive service across diverse, extreme working conditions.

Superior performance

Quality Assurance

Only when every automated valve and actuator delivers consistent, maintenance-free reliability throughout its entire design lifecycle can plant operations achieve maximum economic efficiency, process continuity, and operational safety. All Q series actuators undergo 100% factory torque testing, high-voltage insulation dielectric screening, and rigorous helium leak checking.

Long warranty period

MAIN FUNCTIONS

Explosion Proof

To meet hazardous industrial plant requirements where flammable gases, vapors, or combustible dusts are present (Group IIA, IIB, IIC), the Q series offers explosion-proof certified configurations (Ex d II B T4 Gb) compliant with international and domestic standards including IECEx, ATEX, and GB 3836. The flameproof enclosure withstands internal explosion pressures without transmitting flames to the external surrounding atmosphere.

Colors

We support customized surface coating solutions according to client engineering specifications and international color standards (RAL / Pantone). Utilizing advanced electrostatic dry powder spraying technology and high-performance polyester or epoxy resin coatings, the surface finish provides superior resistance against UV degradation, acid/alkali chemical splash, and coastal salt spray while delivering an aesthetically pleasing, brand-aligned visual identity.

Protection grade

Standard Q series actuators feature IP65 / IP67 ingress protection with precision NBR/EPDM O-rings at all housing interfaces. For severe outdoor, washdown, or underground pit installations, an optional watertight IP68 enclosure is available, certified for continuous submersion at a 10-meter water head for 100 hours.

Low-temperature

For extremely cold Arctic or sub-zero cryogenic pipeline applications, we offer customized low-temperature engineering services. By utilizing specialized low-temperature alloy steels, wide-temperature synthetic silicone lubricants, low-temperature fluorosilicone sealing O-rings, and intelligent thermostatic space heaters, the actuator reliably starts and operates at full torque at temperatures down to -40°C / -70°C without mechanical sluggishness or electronic display failure.

CONTROL MODE

External control

All actuator feedback signals-such as open/close limit switch dry contacts, open/close torque switch trip signals, motor thermal protection contacts, and continuous valve position feedback-are transmitted to external control cabinets, PLC, or DCS systems via field terminal blocks for full remote logic interlocking and centralized monitoring.

Integrated control

Actuators configured with integral control units integrate reversing contactors, control transformer, phase detector, auto-phase discriminator, and local selector switches directly inside the actuator enclosure. The intelligent control modules incorporate non-intrusive magnetic control switches, allowing complete on-site configuration, travel calibration, and real-time status diagnostics without opening the electrical housing cover.

Fieldbus

The integration of digital fieldbus communication modules (Profibus-DP, Modbus RTU, CANopen) replaces extensive multi-core hardwiring with standard two-wire communication cables. This significantly reduces cabling infrastructure and engineering costs while transmitting rich diagnostic data, preventive maintenance telemetry, operating cycle counts, and torque profiles directly to the master DCS asset management system.

Electric Actuator Technical Data

Table 1: Q / AQ Series Technical Specifications & Electrical Performance (Q05 ~ Q500)

Table 2: General Technical & Environmental Performance Standards

Table 3: Connection & Mounting Flange Dimensions (mm)

Table 4: Actuator Overall Outer Dimensions (mm)

Table 5: Q Series Valve Sizing & Selection Guide

COMPANY INTRODUCTION

Founded in 2014, Freya mainly deals in valves, actuators, electric valve actuators, electric valves and other fluid control products and services. It focuses on the process industry field and 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 disclosure, 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. The company has always focused on improving its innovation capabilities, and has achieved a series of innovative results by increasing R&D investment and introducing technology. In the past few years, the company has successfully applied for non-invasive appearance patents and utility model patent certificates. These innovative achievements have improved the company's core competitiveness.

APPLICATIONS

CERTIFICATES

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