Q347N长输管线球阀
价格:1850.00
产品用途:API管线球阀适用于ANSIClass150~900,工作温度-28~300℃的石油、化工、火力电站等各种工况的管路上,切断或接通介质。适用介质为:石油、净化天然气、酸性天然气、煤气、水及煤浆等等介质。操作方式有:手动、涡轮传动、气动、电动、气液联动。产品结构特点:1.阀门中腔停滞的介质由于温度变化而异常升压时,介质压力推动阀座脱离球体,达到自动泄压的效果,卸压后阀座自动复位。2.当万一发生火灾或由于异常升温使阀座密封圈烧损或软化时,阀门操作仍然可靠,同时,阀座与球体形成金属对金属接触,达到暂时密封作用,阻止了火灾进一步扩大,符合APIFA的规定。3.拧开排泄装置可检查阀座是否发生泄露,也可排放中腔滞留物减少介质对阀门的污染。在工作状态下,阀门处于全开或全关时,可更换阀杆部填料函。4.阀座除了一般密封外,特别设置的辅作密封结构,能起到因封圈损伤而出现泄露时的紧急救护作用。5.阀杆部位密封采用PTFR填料和0形圈,特别适用于气体介质。阀杆运动部位采用优质的SF自润滑轴承,使摩擦系统更小,减低操作力矩。主要零件的材料说明:零件名称材质GBASTM阀体WCB、A105A182F316弹簧60Si2Mn316密封圈增强聚四氟乙烯RPTFE垫片柔性石墨+不锈钢柔性石墨+316排污螺塞上25316"O"型密封圈橡胶橡胶底盖A105316螺钉35316阀杆2Cr13+镀镍磷316滑动轴承不锈钢+PTFE316+PTFE球体A105+镀镍磷A182F316阀座A105+镀镍磷316螺柱35CrMoA316螺母t35316压套A105316填料PTFEPTFE填料压盖WCBA216-WCB键45316主要外形尺寸:公称通径NPS2\"3\"4\"6\"8\"10\"12\"14\"16\"18\"20\"DN5080100150200250300350400450500d1517610215220325430537387438489LRF216283305403502586648762838914991BW216283305457521559635762838914991H1100110130175210274305340395440470H165190200270300380420450530560605W400700850600600600800800800800800E11611616171171257257257F350350350420420500500500Class400主要连接尺寸公称通径NPS2\"3\"4\"6\"8\"10\"12\"14\"16\"18\"20\"DN5080100150200250300350400450500d1517610215220325430537387438489LRF2923564064955976737628269029781054BW2953594104986006767658299059781060H1100120140185220270310345410440480H180200210290320380430450550580630W400700850600600600800800800800800E11611616171171257257257F350350350420420500500500Class600主要连接尺寸公称通径NPS2\"3\"4\"6\"8\"10\"12\"14\"16\"18\"20\"DN5080100150200250300350400450500d1517610215220325430537387438489LRF29235643255966078783888999110921194BW29535943556266479184189299410951200RTJ2923564325596607878388899911921194H1110120140185220270310345410440480H180200210290320380430450550580630)