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FJ41YF節(jie)流截止放(fang)空(kong)(kong)(kong)閥(fa)預過(guo)濾雙(shuang)密封副節(jie)流截止放(fang)空(kong)(kong)(kong)閥(fa)是(shi)一種放(fang)空(kong)(kong)(kong)閥(fa)門(men)，具有(you)密封可靠(kao)，耐沖(chong)蝕，使(shi)(shi)用(yong)(yong)壽命長（使(shi)(shi)用(yong)(yong)壽命比一般節(jie)流、截止閥(fa)高(gao)數位），標準(zhun)化(hua)(hua)(hua)通用(yong)(yong)化(hua)(hua)(hua)程度高(gao)，抗(kang)硫(liu)性能優良，節(jie)能效(xiao)果明顯等優點。該(gai)閥(fa)是(shi)石(shi)油(you)、天然氣、石(shi)化(hua)(hua)(hua)及冶金、電力(li)系統(tong)放(fang)空(kong)(kong)(kong)部位對(dui)零泄(xie)漏及使(shi)(shi)用(yong)(yong)壽命要求高(gao)的場合(he)的理想閥(fa)門(men)。