截止閥作為管路啟閉裝置用來隔斷或導通管路中的介質。截止閥的啟閉件是塞形的閥瓣,密封面呈平面或錐面,在啟閉過程中閥瓣沿流體的中心線作直線運動。 截止閥與閘閥相比具有以下優點:1,結構簡單,便于維修;2,工作行程短,啟閉時間快(閥瓣開啟高度為公稱直徑的0.2~0.3);3,密封性好,密封面間摩擦力小,壽命長。 公司設計制造的鋼制截止閥,品種齊全,性能優越,輕便靈活,外觀精美,牢固耐用。適用介質:水、蒸汽、油品、硝酸、醋酸、強氧化介質及尿素等等。廣泛應用于石油,化工、電力、冶煉、制藥、輕工、紡織等行業。可與進口設備直接配套、安裝使用應用規范1、設計制造造GB12235-892、結構長度按GB12221-893、法蘭尺寸按JB/T79-944、閥門檢查和試驗按GB13927性能規范型號公稱壓力(MPa)實驗壓力工作溫度(℃)適用介質強度水(MPa)密封(水)空氣(MPa)低壓密封空氣(MPa)Z41W-16P(R)1.62.41.80.6≤200硝酸類Z41W-25P(R)2.53.82.80.6≤200醋酸類Z41W-40P(R)4.06.04.40.6≤200硝酸類Z41W-60P(R)6.49.67.00.6≤200醋酸類 主要零件材質零件名稱ZGICr18Ni9Tit系列ZG00Cr18Ni10系列ZG1Cr18Ni12M02Ti系列ZG00Cr17Ni14M02系列WCB系列閥體/閥蓋ZGICr18Ni9TiZG00Cr18Ni10ZG1Cr18Ni12M02TiZG00Cr17Ni14M02WCB閘板ZGICr18Ni9TiZG00Cr18Ni10ZG1Cr18Ni12M02TiZG00Cr17Ni14M021Cr13閥桿1Cr18Ni9Ti00Cr18Ni101Cr18Ni12M02Ti00Cr17Ni14M021Cr13填料PTFE編織PTFE編織PTFE編織PTFE編織石墨墊片304+PTFE304L+PTFE316+PTFE316L+PTFE石墨+304壓蓋ZGICr18Ni9TiZG00Cr18Ni10ZG1Cr18Ni12M02TiZG00Cr17Ni14M02系列WCB填料壓環1Cr18Ni9Ti00Cr18Ni101Cr18Ni12M02Ti00Cr17Ni14M021Cr13螺栓1Cr17Ni21Cr17Ni21Cr17Ni21Cr17Ni235CrMoA螺母1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti45 1.6MPa主要連接尺寸尺寸DN1520253240506580100125150200250300350400Lmm130150160180200230290310350400480600650750850950Hmm200243253280312321325355415460510700975111512501380Wmm1201401601602002002402402803203605606007008009002.5MPa主要連接尺寸尺寸DN1520253240506580100125150200250300350400Lmm130150160180200230290310350400480600650750850950Hmm200243253280312321325355415460510700975111512501380Wmm1201401601602002002402402803203605606007008009004.0MPa主要連接尺寸尺寸DN1520253240506580100125150200250300350400Lmm130150160180200230290310350400480600650750850950Hmm200243253280312321325355415460510700975111512501380Wmm1201401601602002002402402803203605606007008009006.4MPa主要連接尺寸尺寸DN15202540506580100125150Lmm170190210230260300340380430550Hmm195228250325360410450485537646Wmm14016018020024028032036040045010.0MPa主要連接尺寸尺寸DN1520253240506580100125150200250300Lmm170190210230260300340380430500550650775900Hmm195228250325360410450485537-84092510151200Wmm100100120160160180200200240-----16.0MPa主要連接尺寸尺寸DN1520253240506580100125150200Lmm170190210230260300340380430500550650Hmm148156175200231262470500557613671765Wmm100100120140160180360400450450500500