The company was established in 2007 and its factory is located in the HuangBohai New Area, the manufacturing hinterland of Yantai. Yantai Jiayou Electronic Machinery Technology Co., Ltd. has seven departments: Technology Research and Development Department, Material Procurement Department, Production and Assembly Department, Quality Management Department, Administrative and Human Resources Department, Finance Department, and Sales Department. The company has a total of 40 personnel, including 5 senior technical engineers and above, and 8 various senior management talents. The factory consists of three main parts: manufacturing, assembly, and research and development. For many years, it has been technology driven and has been focusing on the research and development of high-performance valves for air conditioning and refrigeration. Its main products include micro pressure loss check valves, electric four-way valves, defrost valves, pneumatic electric control valves, and other automatic control valves. They are mainly used for compressor suction and exhaust check valves, electric four-way valves for heat pumps and heat recovery, defrost valves for cold storage and heat recovery. The products are divided into three series: electric four-way valves, pressure free check valves, and defrost valves. These three types of products have extremely low fluid resistance and significantly improve energy efficiency. They are also the earliest researched, tested, used, and mass-produced products in China. The product is widely used and has customers all over the country. The market installation and usage verification period has exceeded 14 years. The product design adheres to the concepts of energy conservation, environmental protection, and efficiency, with an annual production capacity of over hundreds of thousands of pieces. We have always been at the forefront of technology in the research of air conditioning valve control and the development of low flow resistance valves. The technological advantage is obvious. Since its establishment, the company has continuously designed and produced high-quality products based on market changes and customer needs, and provided excellent after-sales service. The company’s products have been widely adopted and praised by many well-known domestic and foreign air conditioning companies, such as Gree Air Conditioning (Zhuhai, Hefei, Changsha) and Johnson Manufacturing (York Guangzhou), Yantai Dunhan Bush (China), Yantai Ebara Air Conditioning, Yantai Binglun Environment, Zhejiang Guoxiang, Trang Air Conditioning, Qingdao Haier, Chongqing Midea, Carrier Air Conditioning, Hisense Hitachi, Nanjing Tianjia, McQuay, etc. Our clients are located in Yantai, Qingdao, Shanghai, Suzhou, Hefei, Zhuhai, Changsha, Guangzhou, Zhejiang and other places. Yantai Jiayou always adheres to the quality policy of "people-oriented, quality first", with a complete quality control system. In 2019, it passed ISO9001 quality system certification, 16949 quality management system certification, and obtained occupational health and safety management system certification, quality management system certification, and 14000 environmental management system certification. Yantai Jiayou has conducted in-depth research on high-performance, low-energy cooling and heating universal valves, The company is based on innovation and continuously develops and trial produces energy-saving and efficient new products according to customer needs. Currently, it has obtained 11 Chinese invention patents, 20 Chinese utility model patents, and is applying for 3 invention patents, 2 US patents, 2 German and Japanese invention patents, 2 other national patents, and 3 PTC applications. The company passed the ISO9001 quality system certification in 2019 and obtained certificates for occupational health and safety management system, quality management system, and environmental management system. And in December 2021, it was awarded the "High tech Enterprise Certificate" jointly issued by the Shandong Provincial Department of Science and Technology, the Shandong Provincial Department of Finance, and the Shandong Provincial Taxation Bureau.