在流體管道系統中，閥門是控制元件。其主要作用是隔離設備和管道系統、調節流量、防止回流、調節 和排泄壓力。可用于控制空氣、水、蒸汽、各種腐蝕性介質、泥漿、油品、液態金屬和放射性介質等各種類 型流體的流動。東晟密封生產的:系列閥門管道密封圈產品，已經大批量出口歐美、中東市場，獲得了廣大高 端客戶的信賴！

        In a fluid piping system, valve is a control element. Its main role is to isolate equipment and piping, regulate flow, prevent backflow, regulate and drain pressure. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. DSH Seals production, series valve pipe seal products, has been exported to Europe, the United States, the Middle East market in large quantities, and has won reputation of the majority of high-end customers.