产品特点：1、采用中法兰螺栓连接，支管两端为法兰连接或对焊连接。2、填料函设计成水密封结构，接入0.6～1.6Mpa水填料，摩擦力小，密封好，能使系统与大气隔离，保证良好的气密性。3、启闭件采用双闸板双向弹性密封，启闭轻松，密封可靠，性能良好。4、阀杆经调质及表面氮化处理，有良好的抗腐蚀性，抗擦伤性和耐磨性。5、结构简单，紧凑合理，检修方便，使用寿命长，造型美观。6、阀门工作必须在全开或全关位置，不可做调节阀用详细介绍壳体材料适用介质适用温度℃碳素钢（C）水、蒸汽、油品≤425铬镍不锈钢（P）硝酸类≤200铬镍钼不锈钢（R）醋酸类≤200铬钼钢（I）水、蒸汽、油品≤550零件名称材料阀体WCBZG1Cr5MoZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti阀板WCB1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni12Mo2Ti阀盖WCB/25ZG1Cr5MoZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti阀杆2Cr131Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni12Mo2Ti填料真空组合填料阀杆螺母铝青铜手轮可锻铸铁公称压力Pressure Class试验压力Test　pressure壳体 Shell密封（水）Seat　(water)密封（气）Seat　(Air)上密封 （水）Back Seat (water)1.62.41.80.61.8公称压力1.6 MPaDNL1L2DD1D2bfz-dDnABHH1DORFBW502502161601251001634-184957663984582502824652702411801451201834-186673834385142504035802802831951601352038-1878899645653930055501003003052151801552038-189610811751461430075661253253812452101852238-18121133144600750350110961503504032802402102438-2314615917268082535015013320040041933529526526312-23202219222800100040022320325045045740535532030312-25254273278840108045032529530050050246041037530412-25303325330990128045043039535055057252047043534416-253513773821135147060057051040060061058052548536416-303984264321410181565074066545065066064058554540420-304504804841475192570095586050070071170565060844420-34501530535166021707501195107060080081384077071848520-41602630638195025708001455129570090091491084078850524-4169272073821652870850211018308001000965102095089852521-417928208402595339595026302390