升降式衬氟衬胶止回阀主要性能规范：工作温度适用介质≤85℃J：一般腐蚀性介质≤120℃F46：强腐蚀性介质升降式衬氟衬胶止回阀主要零部件的材料：名称材料阀体灰铸铁衬橡胶、氟塑料阀盖灰铸铁衬橡胶、氟塑料阀瓣灰铸铁衬橡胶、氟塑料阀杆灰铸铁衬橡胶、氟塑料升降式衬氟衬胶止回阀主要外形尺寸（mm）:公称通径标准值参考值DN(mm)NPS(inch)LDD1D2fBZ-фDBHWT(?)PN1.01.6MPa151/21309565452144-14110556203/415010575552164-14120587.825116011585652164-1413560103211/4180135100782184-181507512.54011/2200145110853184-181658214.55022301601251003208-181859519.56521/22901801451203204-1821010525.58033101951601353228-182351203010043502151801553248-182601353612554002452101853268-2331015862150648028024021032812-2335018078200849533529526533012-254202151562501062240535532033212-255052401723001269846041037543416-255602652403501478752047043543816-256053002084001691458052548544016-30650350265升降式衬氟衬胶止回阀采用标准设计与制造：Q/JBGN01结构长度：QB1221法兰连接尺寸：JB78PN1.6MPa)