PQ40H偏心半球阀PQ40H偏心半球阀/QP640H气动偏心半球阀/PQ940H电动偏心半球阀利用偏心阀体，偏心球体和阀座，阀杆作旋转运动时在共同轨迹自动定心，关闭过程中越关越紧，完全达到良好的密封目的。阀门的球体和阀座完全脱离，消除了密封圈的磨损，克服了传统球体阀座与球体密封面始终磨损的问题，非金属弹性材料被嵌入金属座中，阀座金属面受到良好的保护。偏心半球阀特别适用于钢铁业，铝业，纤维，微小固体颗粒，纸浆，煤灰，石油气等介质。气动偏心半球阀电动偏心半球阀偏心半球阀主要零件材料序号名称代号材料WCB304CF8316CF8M1阀体WCBZG230-4500Cr18Ni90Cr18Ni12Mo2Ti2下端盖Q235-A1Cr18Ni9Ti0Cr18Ni12Mo2Ti3内六角圆柱头螺钉GB/T70-2000Q235-A1Cr17Ni20Cr18Ni12Mo2Ti4下固定轴调节螺栓Q235-A1Cr17Ni21Cr17Ni25六角螺母GB/T6710-2000Q235-A1Cr17Ni21Cr17Ni26下垫片不锈钢柔性石墨；PTFE；316夹柔性石墨7下轴承0Cr18Ni9Ti0Cr18Ni9Ti0Cr18Ni12Mo2Ti8下固定轴2Cr133040Cr18Ni12Mo2Ti9球体ZG2Cr130Cr18Ni90Cr18Ni12Mo2Ti10阀座压圈Q225-A1Cr18Ni9Ti0Cr18Ni12Mo2Ti11阀座Q225-APTFE/1Cr18Ni12Mo2TiPTFE/1Cr18Ni12Mo2Ti12内六角圆柱头螺钉GB/T70-2000Q235-A1Cr17Ni21Cr17Ni213阀座垫片不锈钢柔性石墨1Cr17Ni20Cr18Ni12Mo2Ti14阀杆2Cr131Cr18Ni9Ti0Cr18Ni12Mo2Ti15上轴承0Cr18Ni9Ti0Cr18Ni9Ti0Cr18Ni12Mo2Ti16对开圆环1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti17定位圈1Cr131Cr18Ni9Ti1Cr18Ni9Ti18填料柔性石墨柔性石墨；PTFE柔性石墨；PTFE19六角螺塞垫片0Cr18Ni9Ti0Cr18Ni9Ti0Cr18Ni9Ti20六角螺塞2Cr131Cr17Ni21Cr17Ni221六角螺塞2Cr131Cr17Ni21Cr17Ni222支架WCBZG230-450WCB；304WCB；30423双头螺栓GB/T901-198835CrMoA1Cr17Ni21Cr17Ni224六角螺母GB/T6170-2000Q245-A0Cr18Ni90Cr18Ni925填料压套1Cr131Cr18Ni12Mo2Ti/1Cr18Ni91Cr18Ni12Mo2Ti/1Cr18Ni926填料压板WCB0Cr18Ni90Cr18Ni927双头螺栓GB/T901-198835CrMoA1Cr17Ni21Cr17Ni228六角螺母GB/T6170-2000Q245-A0Cr18Ni0Cr18Ni29六角螺栓GB/T5783-200Q235-A1Cr17Ni21Cr17Ni230驱动装置31六角螺塞垫片0Cr18Ni9Ti0Cr18Ni9Ti0Cr18Ni9Ti32六角螺塞2Cr130Cr18Ni9Ti0Cr18Ni9Ti偏心半球阀性能规范材料性能材料代号WCB304316304L316L321ZG2300Cr18Ni9（CF8）1Cr18Ni12Mo2Ti（CF8M）00Cr18Ni10（CF3）00Cr17Ni14Mo2（CF3M）ZG7Cr18Ni9T（F347）适用介质水、油品、蒸汽硝酸类醋酸类强氧化介质尿素等腐蚀介质硝酸类测试范围Mpa项目公称压力壳体压力试验密封测试上密封测试低压密封测试探伤测试试验介质水Mpa水Mpa水Mpa气MpaGB/T6440-1992时间（S）12060600.5~0.6压力测试1.0Mpa1.51.11.11.6Mpa2.41.761.762.5Mpa3.752.752.75偏心半球阀主要外形尺寸公称压力PN/Mpa公称通径DN/mm尺寸（mm）LDKdfCZ-￠dH1.640165150110853164-￠1850178165125100651901851451201828080203200160135208-￠1832010022922018015537012525425021018522430150267285240210248-￠235102002923402952652612￠-236002503304053553203012-￠2669030050246041037547603505725204704353416-￠268304006105805254853616-￠309254506606405855454020-￠3010255007007156506084420-￠34112060081384077071854820-￠361210技术快讯：本发明提供一种新型阀门，包括阀体、安装在阀体内部的阀芯以及安装在阀体上的且带动阀芯翻转的阀杆，所述新型阀门还包括活动安装在阀体上方的阀盖以及设置在阀体内部且贯通阀体两端的流道，所述流道上沿液体流动方向上的横截面的最底端为一条直线；所述阀杆沿水平方向垂直安装在阀体上，所述阀杆与阀盖平行且垂直于流道；所述阀芯围绕阀杆始终在阀杆的上方摆动，所述阀芯能与阀体密封配合且实现流道的通断，本发明采用平底设计，避免垃圾堆积流道、全通径低流阻、结构简单且加工方便。)