概述；性能规范设计规范结构长度连接法兰试验与检验产品标识供货规范GB/T12232(GB/T12235)GB/T12221JB/T78;JB/T79GB/T13927GB/T12220JB/T7928主要零部件材料表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阀ZCPRPLRL1阀体/端盖/闸板HT250WCBCF8CF8MCF3CF3M2阀杆352Cr131Cr18Ni91Cr18Ni12Mo2Ti00Cr18Ni1000Cr17Ni14Mo23衬里/阀座PTFE(F4)、PCTFE(F3)、FEP(F46)、PFA(可溶性4)4填料/压盖WCBCF8CF8MCF3CF3M5填料PTFE(F4)PTFE(F4)PTFE(F4)6活节螺栓351Cr17Ni21Cr17Ni27阀杆螺母ZCuAI10Fe3ZCuAI10Fe3ZCuAI10Fe38紧固螺母451Cr17Ni21Cr18Ni9Ti9螺母0Cr18Ni90Cr18Ni910手轮WCBWCBWCB主要外形和连接尺寸公称通径标准值参考值DN(mm)NPS(inch)LDD1D2fbZ-ФdD0HH1WT(Kg)PN1.0MPa151/21309565452144-Ф141002352606.5203/415010575552164-Ф14100240265725116011585652164-Ф141202452707.83211/4180135100782184-Ф18140255285114011/2200145110853184-Ф18140285315135022301601251003204-Ф18160295330156521/22901801451203204-Ф18180350395238033101951601353224-Ф182403954453810043502151801553228-Ф182404504904212554002452101853248-Ф182805255555515064803802402103248-Ф233206056457720084953352952653268-Ф233606457651352501062239035032032812-Ф234006858052203001269844040036842812-Ф234007108142773501478750046042843016-Ф23450750855320)