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                          穿地波紋管截止閥

                           

                          本閥門主要應用于核燃料后處理工藝流程中輻照劑量或毒性比較強、檢修人員不宜直接接觸并進行檢修更換的重要工位上。我公司先后為中國原子能科學研究院、某軍工工程、巴基斯坦恰希瑪核電站、中國核工業集團中公司下屬的821廠、404廠等單位提供了本類閥門。

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                          產品特點:

                          1.穿地波紋管截止閥都由閥門本體(包括閥體、閥芯、閥瓣等)、安裝套管、壓緊防護件和傳動件四個主要部分組成。

                          2. 閥門有上、下兩個密封面。上密封面是用于防止工藝介質外漏的,工藝介質若有泄漏,必將造成嚴重的浪費和污染。下密封面是用于管道內部控制或切斷工藝介質的,其密封性能或調節性能好壞,對工藝過程的正常運行影響很大。兩個密封面是穿地波紋管截止閥的關鍵部位。

                          3.閥門通過操縱裝置帶動操縱桿、傳動桿、閥桿帶動閥瓣作上下運動,從而使下密封面達到切斷的作用。

                          4.閥門結構上采取卸壓卸流的措施。一旦發生外漏,可將工藝介質向設備室內引流,防止污染安裝廳地面。同時也可通過觀測裝置及時發現并加以檢修。

                          5. 穿地波紋管截止閥除了放空等個別情況外,正常的介質流向應當是“低進高出”,即介質自閥瓣的下部流進閥體再從閥瓣的上部流出,并應盡力避免或改善閥芯波紋管承受側向脈沖壓力的不利工況,保證閥門的正常使用。

                          6.閥門是穿過混凝土地面進行安裝的,并借助專門的檢修工具,對閥門的易損件實現就地快速檢修更換。

                           

                          產品范圍:

                          閥門口徑:    DN6DN150             

                          壓力等級:    1.0MPa                  

                          工作溫度:    0℃~100              

                          主體材料:    F304F304LF316F316L

                          驅動方式:    手動、電動         

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