Since 1975, JDV has been dedicating in the engineering and manufacturing of high quality valves, focuses on offering 100% safety to each customer. We developed our own metal seated engineering by building the in-house HVOF (High Velocity Fuel & Oxygen) Coating equipment and built up the largest scale of ball/seat grinding/lapping working shop in Taiwan, we take care of process each step in one hand. Thanks to our metal seated engineering, our valves can withstand severe working conditions accompanied with cryogenic temperature down to -196ºC, high temperature up to +816ºC, high wearing, or abrasive mediums in various industries, such as petrochemical, oil refinery, oil & gas, steel refinery, pulp & paper, power plant, semi-conductor, electronic, water treatment, pharmaceutical, and food industries. We listen to the market to fulfill customer's needs precisely in each detail. Our customers motivate us to achieve the highest performance every day. Safety, Reliability, and Quality are our commitments, and we deliver on our promises.