YDF has over 40 years of experience in the manufacturing of gate valves, globe valves, and check valves, earning high recognition from customers both domestically and internationally. YDF Gate valves are suitable for on/off control in industrial pipelines such as those for petroleum and natural gas, providing reliable sealing and low flow resistance . YDF Globe valves are primarily used to regulate flow or shut off media, especially in high-temperature and high-pressure conditions, and are widely applied in industries like chemical and power . YDF Check valves automatically prevent backflow of media, protecting critical equipment. The product range includes swing type, lift type, axial flow type, and other varieties to meet the requirements of different systems .