法兰类型密封面型式板式平焊法兰（PL）突面(RF)全平面（FF）突面(RF)凸面（FM）带颈平焊法凹面（M)兰（SO）榫面（T）槽面（G）全平面（FF）突面(RF)凸面（FM）凹面（M)带颈对焊法榫面（T）兰（WN）槽面（G）全平面（FF）环连接面（RJ）突面(RF)凸面（FM）凹面（M)整体法兰榫面（T）（IF）槽面（G）全平面（FF）环连接面（RJ）突面(RF)承插焊法兰凸面（FM）凹面（M)（SW）榫面（T）槽面（G）突面(RF)螺纹法兰全平面（TH)（FF）对焊环松套突面(RF)法兰(PJ/SE)突面(RF)平焊环松套凸面（FM）法兰凹面（M)(PJ/RJ)榫面（T）槽面（G）突面(RF)公称压力PN2.5DN10-DN2000DN10-DN2000-61016DN10-DN600DN10-DN600DN10-DN300--DN10-DN300----DN10-DN2000-----DN10-DN2000----------DN10-DN2000DN10-DN600DN10-DN600DN10-DN600DN10-DN1200DN10-DN600DN10-DN150DN10-DN600---DN10-DN4DN10-DN150-DN10-DN50DN10-DN50DN10-DN50DN10-DN2000DN10-DN1200DN10-DN600DN10-DN600DN10-DN600DN10-DN600DN10-DN2000DN10-DN600DN10-DN600DN10-DN600DN10-DN600DN10-DN600DN10-DN600-DN10-DN400DN10-DN400DN10-DN400-DN15-DN4DN10-DN4DN10-DN4DN10-DN4-DN15-DN4-254063凸面（FM）凹面（M)榫面（T）法兰盖(BL)槽面（G）全平面（FF）环连接面（RJ）突面(RF)衬里法兰盖(BL(S)凸面（FM)槽面（T）--DN10-DN2000DN10-DN1200----DN10-DN600DN10-DN600DN10-DN4DN10-DN4-DN15-DN4DN40-DN600DN40-DN600DN40-DN600100-160---DN10-DN350DN10-DN300DN10-DN350DN10-DN300DN10-DN350DN10-DN3005-DN4000-DN4000-DN4000-DN400DN15-DN300DN10-DN300DN10-DN300DN10-DN3005-DN400DN15-DN300-----0-DN400DN10-DN3000-DN4000-DN400DN10-DN300DN10-DN3005-DN400---DN15-DN300