技术参数【执行标准】设计规范： GB/T 12238 API609法兰连接： GB/T 9113 API609 ASME B16.5 ISO5752试验与检验：GB/T 13927 API598【性能参数】保温蝶阀型号BD343HBD343YBD343WCBD643HBD643YBD643WCBD943HBD943YBD943WC适用介质易凝固或结晶类介质等材料阀体WCB CF8 CF8 铬钼钢 低温钢 镍合金 Monel Duplex Steel蝶板WCB CF8 CF8 铬钼钢 低温钢 镍合金 Monel Duplex Steel阀杆2Cr13 F304 F316铬钼钢 低温钢 镍合金 Monel密封面SS+柔性石墨 不锈钢司太立合金 碳化钨 镍合金 Monel填料柔性石墨【外形尺寸】公称通径结构长度H外形尺寸(参考值)DNLBD343DB643BD943毫米mm英寸inch短系列长系列H1A1B1H2A2B2H3A3B350210815011235018020062524572530250255652 1/2112170115370180200625245725302502558031141801203801802006452457256525025510041271901384201802006753559260025025512551402001644601802007153559264025025515061402101755552702808003559270530031520081522302007604004258502501707753003152501016525024383040042592525017094530031530012178270250895450560103545022010703003153501419029028095045056010754502201140300315400162163103051190535580119045022012103003154501822233035012555355801250650280133557571450020229350380130553558012906502801415575714600242673904451340570660145585038016056568107002829243048015207505501585850380184465681080032318470530171075055017001250380204065681090036330510580181075055019651250380225578586310004041055065019609007502015125038023807858631200484706307602250100092522501250380264078586314005653071085024351000925---2886--160064600790103027801000925---3156--180072670870123030201100980---3421--200080760950135032701100980---3685--