GB/T15530.1-1995表3PN1.6MPa整体铸造铜合金法兰尺寸mm连接尺寸公称通径螺栓法兰厚度颈部直径圆角半径DN法兰外径螺栓孔中心圆直径螺栓孔直径NR个L数量螺纹Th.10906014M1261615956514M12212010514M12628251158514M12832140100M16401501108M1695016512518M16116518514518138020016018M113100220180188M116125250210M162215950285240色8M2022184175310270名8M20242162003402952212M2023682504053552612M2422903004604102612M242831235052047026M240395580525%16M2732448105007156503320M303455210表4PN2.5MPa整体铸造铜合金法兰尺寸mm连接尺寸公称通径螺栓法兰厚度颈部直径圆角半径DN法兰外径螺栓孔中心圆直径螺栓孔直径CNRDKL数量螺纹Th.10906014M121615956514M128242010575144M1252511585144M1235名140100184M1694254015011018M161152