一、产品简介法兰式衬氟蝶阀采用带有球形密封表面的衬聚四氟乙烯包衬蝶板，配以阀座基部的硅橡胶衬垫调节阀门的密封性能；该阀门操作轻便，严密的密封性能，超长的使用寿命；可做快速切断或调节流量之用。适用于要求可靠密封和良好调节特性的场合。阀体采用分体式，阀轴两端的密封由蝶板和阀座之间的旋转基面加氟橡胶来控制，从而达到产品结构紧凑、外形美观、工艺合理、性能可靠。二、法兰式衬氟蝶阀主要零部件材料序号零件名称灰铸铁铸钢不锈耐酸铸钢超低碳不锈耐酸铸钢ZCPRPLRL1阀体/阀盖HT250WCBCF8CF8MCF3CF3M2蝶板WCBCF8CF8MCF3CF3M3阀杆1Cr132Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti00Cr18Ni10000Cr17Ni14Mo24衬里/阀座PTFE（F4）,PCTEF（F3）,FEP（F46）,PFA（可溶F4）,PP,PO5紧固销2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti00Cr18Ni10000Cr17Ni14Mo26填料PTFE（F4）7填料压盖WCBCF8CF8MCF3CF88支架WCBCF8CF89紧固螺栓351Cr17Ni21Cr18Ni210螺母451Cr18Ni90Cr18Ni9三、法兰式衬氟蝶阀主要连接尺寸公称通经LDD1D2fbZ-φdDD1D2fbZ-φdDN（mm）NPS（inch）PN1.0MPaPN1.6MPa403/2106145110853184-φ18145110853184-φ185021081601251003204-φ181601251003204-φ18655/21121801451203204-φ181801451203204-φ188031141951601353224-φ181951601353228-φ1810041272151801553228-φ182151801553248-φ1812551402452101853248-φ182452101853268-φ1815061402802402103248-φ232802402103288-φ1820081523352952653268-φ2333529526533012-φ232501025039035032032812-φ2340535532033212-φ253001227044040036832812-φ2346041037543412-φ253501429050046042843016-φ2352047043543816-φ254001631056551548243216-φ2558052548544016-φ304501833061556553243220-φ2564058554544420-φ305002035068062058543420-φ2570565060844620-φ346002439078072568553620-φ3084077071855420-φ417002843089584080054024-φ3091084078855424-φ4180032470101095090554424-φ34102095089855424-φ419003651011101050100554628-φ341120105099855428-φ4110004055012201160111555028-φ3412551170111056028-φ48)