About Us

About SUNYEH

Sun Yeh Electrical Ind. Co., Ltd., established in Taiwan in 1986, has been dedicated to understanding and meeting customer demands and expectations. Guided by this commitment, we have developed a comprehensive range of electric actuators, including the OM series quarter-turn electric control valve actuators, spring-return fail-safe valve actuators, SuperCap fail-safe actuators, linear series, multi-turn actuators, and explosion-proof electric actuators. Sun Yeh's electric actuators are compatible with various valve types, such as butterfly valves, ball valves, plug valves, dampers, and globe valves. They are widely utilized across numerous industries, including oil and gas, water treatment, energy, HVAC (chillers and cooling towers), irrigation, tunnels and metro systems, agriculture and animal husbandry, chemicals, food and beverage, mining, fluid control, smoke extraction, and environmental protection systems.

Corporate Vision

Sun Yeh is oriented towards R&D, innovation, and service, striving to enhance brand competence and business continuity to create a bright future for all our partners.

Corporate Mission

The mission of Sun Yeh is to create maximum benefit for our partners and provide our customers with excellent and innovative products and services.

Core Values and Philosophy

The core values and philosophy of Sun Yeh are providing excellent solutions, innovation, honesty, and responsibility.

Corporate Culture

To reach common goals with good faith, passion, innovation, and unity is Sun Yeh’s culture.

Branding Meaning

SUNYEH branding represents Service, Unique, Nice, Youthful, Energy, and Honesty.

Corporate Social Responsibility and ESG

While pursuing the best interests of the enterprise, Sun Yeh also actively practices corporate social responsibility (CSR) to protect the environment and improve the health and safety of our staff. We have applied for and obtained ISO 14001, ISO 45001, REACH, and RoHS certifications. Our commitment to ESG (Environmental, Social, and Governance) includes:

  • Environmental: Promoting green manufacturing, reducing carbon footprint, and actively participating in environmental protection activities.
  • Social: Focusing on employee well-being, providing a safe and healthy working environment, and supporting community development.
  • Governance: Upholding integrity in business operations, strengthening internal controls, and ensuring transparency in corporate governance.

Quality Control

An advanced quality management system is essential to achieve superior quality products. We have been strictly controlling quality over the years with advanced technology and instruments. Each actuator is inspected and calibrated before shipment. As a result of our efforts in pursuing quality, Sun Yeh products have been certified with CE, CSA, ATEX, IECEx, and SIL certifications, in addition to obtaining ISO 9001 qualification. We have received recognition and excellent evaluations from customers globally. There is a close and inseparable partnership between Sun Yeh and TÜV Rheinland, which handles our product safety certification and testing. This collaboration produces synergies during certification that help pave the way for business growth. We will continue to maintain excellent quality and a good reputation. For further information, please feel free to contact us.



There is a close and inseparable partnership exists between Sun Yeh and TÜV Rheinland. We entrust TÜV Rheinland to handle our product safety certification and testing. This produces synergies during certification that help pave the way for business growth. We will keep excellent quality, good reputation continuously. Please feel free to contact us for further information.

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