YDF Valves was established in 1978 and they manufacture ball, gate, globe, check, butterfly and power station valves. These products have been widely used throughout the world in oil, gas, chemical, refining, power generation, marine and pipeline transmission industrial application. They have 916 employees, which includes a team of 86 engineers. YDF’s head office is located in Shanghai, two valve factories are located in Yancheng Jiangsu Province, and one foundry is located in Binhai Jiangsu Province. They have achieved the following certifications: ISO9001, ISO14001, OASHS18001, CE/PED, ATEX, API 591, API6D, API 600, API 624, ABS ,TS, ISO15858-1 and API607/6FA.