HUAERSHI.HUAERSHI (HES) is a company with over 20 years of history, specializing in the research, development, and manufacturing of pneumatic actuators and pneumatic control valves. Headquartered in Wenzhou, Zhejiang, the company operates a large, modern precision machining facility in Jinshan, Shanghai, with a total production floor area exceeding 30,000 square meters. Equipped with state-of-the-art machinery—including CNC machining centers, CNC gear hobbing machines, and spray coating lines—the company maintains a dedicated inspection and testing laboratory equipped with dozens of advanced instruments such as spectrometers, hardness testers, and various pressure and endurance test benches, ensuring comprehensive quality control from raw materials to finished products. The company strictly adheres to the ISO 9000 quality management system and manufactures products in accordance with international standards such as China’s GB, the U.S. API, and Germany’s DIN. Its main products include pneumatic actuators, pneumatic ball valves, butterfly valves, control valves, gate valves, and related accessories, which are widely used in numerous industries such as natural gas, chemicals, metallurgy, power generation, food and beverage, and water treatment.
