COVNA, headquartered in Dongguan city, is one of the top manufacturers for automatic control valves in China.COVNA owns one R & D Center, 3 production bases and 4 sales subsidiaries. And our valves are sold in more than 100 countries and served for numerous flow control project, like water treatment, food machinery, Ship building,natural gas and so on.We offer comprehensive line of fluid control solutions for a wide range of industry-focused applications. We introduce German's Advanced Manufacturing Technology (A M T), automated assembly line and sophisticated testing instruments to provide you of superior products, including pneumatic valves, electric valves and solenoid valves.COVNA always put quality as the first consideration. All COVNA products are designed and manufactured by experienced engineering team to provide safe, reliable, dependable and affordable valves, actuators and solutions. Each product has to pass strict inspection before shipment. With continual feedback from our customers as well as our experience in manufacturing and quality control, COVNA aims to provide our customers premier quality products with the most competitive pricing, on-time delivery and full warranty service. COVNA is with certifications of compliance that include C E, RoHS. There is no best but better. Your demand is our eternal pursuit. We welcome the opportunity to discuss your specific needs. Let us know how we can be help you! COVNA - solve your technical questions with solid experience.