加长杆蝶阀主要零件材料：零件名称材料阀体铸铁、铸钢、不锈钢、铬钼钢、合金钢蝶板铸钢、合金钢（镀硬铬）、不锈钢、铬钼钢密封圈不锈钢、聚内脂、抗磨材料阀杆2Cr13、1Cr13不锈钢、铬钼钢填料柔性石墨注：法兰标准：GB/T9113.1-2000GB/T9113.2-2000GB/T911.5.1-2000GB/T9115.2-2000用户注意:表中H1、H2、H3尺寸均可根据用户需要加长，本产品一般按短系列,若需长系列或特殊材料定货时提出。加长杆蝶阀规格尺寸：通径结构长度（标准值）外形尺寸（参考值）连接尺寸(标准值)LHDt343HDt643HDt943HPN4.0MPa毫米英寸短长H1A1B1H2A2B2H3A3B3DD1Z-d5021081501123501802005302502551651254-186521/2112170115370180200625355925502502551851458-18803114180120380180200625355925652502552001608-181004127190138420180200645355926002502552351908-2212551402001644601802006755501386402502552702208-2615061402101755552702807155501387053003153002508-26200815223020860527028080055013877530031537532012-302501016525024368027028085055013894530031545038512-3330012178270283800380420925450220107030031551545016-33350141902903108303804201035450220114030031558051016-36400162163103409154504701070650280121030031566058516-39450182223303809604804901190650280133557571468561020-39500202293504101020480490141557571475567020-42)