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1、水处理常用管件标准化手册目 录第一部分 钢制管法兰标准应用 1第一节 编制说明 2一、 技术要求 2二、 选用范围 2三、 标记示例 3四、 注意事项 3第二节 钢制管法兰标准 4一、 凸面板式平焊钢制管法兰 4二、 凸面带颈平焊钢制管法兰 7三、 凹凸面带颈平焊钢制管法兰 10第二部分 钢制管法兰紧固件标准应用 12第一节 编制说明 13一、 技术要求 13二、 标准选用 14三、 注意事项 15四、 标记示例 15第二节 紧固件标准应用 16一、 法兰与法兰连接 16二、 法兰与对夹式蝶阀连接 21第三部分 常用管道标准应用 25第一节 技术要求 27一、 管道 27二、 90弯头 28三
2、、 三通 28四、 同心异径管 29五、 偏心异径管 29六、 说明 29第二节 标准应用 30一、 管道应用 32二、 90弯头应用 32三、 三通应用 34 四、 同心异径管应用 40五、 偏心异径管的应用 45第一部分 钢制管法兰标准应用第一节 编制说明一、 技术要求二、 选用范围三、 标记示例四、 注意事项第二节 钢制管法兰标准一、 突面板式平焊钢制管法兰1. PN0.6Mpa(6bar) GB9119.6-2000（参照） 2. PN1.0Mpa(10bar) GB9119.7-2000（参照）3. PN1.6Mpa(16bar) GB9119.8-2000（参照）4. PN2.5M
3、pa(25bar) GB9119.9-2000（参照）5. PN4.0Mpa(40bar) GB9119.10-2000（参照）二、突面带颈平焊钢制管法兰1. PN5.0Mpa(50bar) GB9116.9-2000（参照）2. CLASS150 ANSI B16.5-1998（接管标准为SN3405系列）3. CLASS300 ANSI B16.5-1998（接管标准为SN3405系列）4. CLASS150 ANSI B16.5-1998（接管标准为公制）5. CLASS300 ANSI B16.5-1998（接管标准为公制）三、凹凸面带颈平焊钢制管法兰PN4.0Mpa(40bar) G
4、B9116.13-2000（参照）第一节 编 制 说 明一、技术要求：1. 国标法兰内径及所配钢管采用公制，其它尺寸按国家标准。其中公称压力4.0MPa的法兰参照GB9119凸面板式平焊钢制管法兰系列；公称压力5.0MPa法兰参照GB9116.9-88凸面带颈平焊钢制管法兰标准；凹凸面带颈平焊钢制管法兰参照GB9116.13 PN4.0MPa标准。2. ANSI标准法兰按ANSI B16.5 CLASS150及CLASS300系列。3. 法兰的技术要求和材料按GB9125-88钢制管法兰 技术条件的规定，其中材料的选择如下： 公称压力2.5MPa时，选用材料牌号为：Q235-A板材或锻件； 2
5、.5MPa公称压力5.0MPa时，选用材料牌号为：20、25或16Mn、1Cr18Ni9Ti板材、锻件或铸件。4. 法兰的公称压力及在不同温度下的最大允许工作压力按GB9131-88钢制管法兰 压力温度等级的规定。5. 所有连接紧固件均采用公制。二、选用范围1. 管道连接一般选用GB9119凸面板式平焊钢制管法兰系列。2. 法兰用于连接中压（4.0MPa）国产阀门、水泵时，选用GB9116.13凹凸面带颈平焊钢制管法兰或根据产品样本连接标准选用；若设备本体法兰为凹面（B型），则所配法兰应选用凸面（A型），反之所配法兰应选用凹面（B型）。3. 法兰用于连接进口阀门时，选用ANSI B16.5 C
6、LASS150及CLASS300系列。德国GEMU蝶阀连接尺寸与国标GB9119.7-88（PNI.0MPa）一致。4. 国标法兰GB9116.9-88 PN5.0MPa凸面带颈平焊钢制管法兰系列与ANSI B16.5 CLASS300连接尺寸一致。5. ANSI B16.5 CLASS150及CLASS300系列的法兰内径及所配钢管有英制和公制两种规格，与进口蝶阀连接时，法兰内径及所配钢管应按蝶阀实际需要选用英制，以保证蝶阀开启自如。用于连接管道及蝶阀以外的阀门连接时，法兰内径及所配钢管可选用公制。6. 法兰用于连接对夹式蝶阀时，所配钢管内径应满足阀板开启所需最小尺寸，以保证蝶阀开启自如。三
7、、标记示例1. 公称通径100mm、公称压力1.0MPa（10bar）、材料为Q235-A的凸面板式平焊钢制管法兰的标记：法兰 100-10 GB9119.7-88 Q235-A 2. 公称通径100mm、压力等级为CLASS150、材料为Q235-A的ANSI B16.5标准管法兰的标记：法兰 DN100 CLASS150 ANSI B16.5 Q235-A 四、注意事项选用法兰和提交法兰采购清册时，必须注明法兰内径尺寸及所配钢管的规格是采用公制还是英制。第二节 钢 制 管 法 兰 标 准一、凸面板式平焊钢制管法兰法兰的型式和尺寸按下图和下表的规定。1PN0.6Mpa(6bar) GB911
8、9.6-88（参照）公称通径DN管子外径A法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰内径B法兰理论重量 kg数量n螺纹Th.df101520141825758090505565111111444M10M10M1033384822212121414.518.525.50.310.350.532532403238451001201307590100111414444M10M12M1258697833314161632.539.046.00.600.991.17506580577689140160190110130150141418444M12M12M1688108124333
9、16161858.577.590.51.281.612.60100125150108133159210240265170200225181818488M16M16M16144174199333182020110.0135.0161.02.853.864.2320025030021927332532037544028033539518182281212M16M16M202543093633342224242222763286.238.1510.5335040037742649054044549522221216M20M2041346344262838143015.2618.122PN1.0Mpa
10、(10bar) GB9119.7-88（参照）公称通径DN管子外径A法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰内径B法兰理论重量 kg数量n螺纹Th.df1015201418259095105606575141414444M12M12M1241465622214141614.518.525.50.530.590.8525324032384511514015085100110141818444M12M16M1665768433316181832.539460.961.591.82506580577689165185200125145160181818448M16M16M16
11、9911813233320202058.577.590.52.433.483.95100125150108133159220250285180210240181822888M16M16M201561842113332222241101351614.524.936.5320025030021927332534039544529535040022222281212M20M20M202663193703342426282222763288.5110.9213.3035040037742650556546051522261616M20M2442948044303238143021.5927.483PN
12、1.6Mpa(16bar) GB9119.8-88（参照）公称通径DN管子外径A法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰内径B法兰理论重量 kg数量n螺纹Th.df1015201418259095105606575141414444M12M12M1241465622214141614.518.525.50.530.590.8525324032384511514015085100110141818444M12M16M1665768433316181832.539460.961.591.82506580577689165185200125145160181818448M16
13、M16M169911813233320202058.577.590.52.432.973.23100125150108133159220250285180210240181822888M16M16M201561842113332222241101351614.524.936.53200250300219273325340405460295355410222626121212M20M24M242663193703342629322222763289.0113.2017.3435040037742652058047052526301616M24M2742948044353838143026.273
14、3.554PN2.5Mpa(25bar) GB9119.9-88（参照） 公称通径DN管子外径A法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰内径B法兰理论重量 kg数量n螺纹Th.df1015201418259095105606575141414444M12M12M1241465622214141614.518.525.50.530.590.8525324032384511514015085100110141818444M12M16M1665768433316181832.539460.961.591.825065805776891651852001251451601818
15、18488M16M16M169911813233320222458.577.590.52.433.153.95100125150108133159235270300190220250222626888M20M24M241561842113332628301101351615.577.579.52200250300219273325360425485310370430263030121216M24M27M2727433038933432353822227632814.6219.0124.8835040037742655562049055033361616M30M33448503444246381
16、43039.5552.485PN4.0Mpa(40bar) GB9119.10-88（参照）公称通径DN管子外径A法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰内径B法兰理论重量 kg数量n螺纹Th.df1015201418259095105606575141414444M12M12M1241465622214141614.518.525.50.530.590.8525324032384511514015085100110141818444M12M16M1665768433316181832.539460.961.591.825065805776891651852001251
17、45160181818488M16M16M169911813233320222458.577.590.52.433.153.95100125150108133159235270300190220250222626888M20M24M241561842113332628301101351615.577.579.52200250300219273325375450515320385450303333121216M27M30M3028434540933436424822227632817.0127.9439.5935040037742658066051058536391616M33M36465535
18、44546038143059.5986.26二、凸面带颈平焊钢制管法兰法兰的型式和尺寸按下图和下表的规定。1.PN5.0Mpa(50bar) GB9116.9-88（参照）公称通径DN管子外径A法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰高度H法兰颈N法兰内径B法兰理论重量 kg数量n螺纹Th.df1520251825329512012566.582.589.0162020444M14M18M1834.942.950.822214.516.017.522252738485418.525.532.50.621.111.3232405038455713515516598.511
19、4.5127.0202220448M18M20M1863.573.092.122219.521.022.5273033647084394658.51.732.442.8265801007689108190210255149.0168.5200.0222222888M20M20M20104.8127.0157.222225.529.032.038434810011814677.590.51104.215.909.70125150200133159219280320380235.0270.0330.022222681212M20M20M24185.7215.9269.922235.037.041.
20、551526217820626013516122212.2416.0323.81250300350273325377445520585387.5451.0514.5303333161620M27M30M30323.8381.0412.822248.051.054.067737632137542627632838133.8248.9768.85400426650571.53620M33469.9257.58348343088.632. CLASS150 ANSI B16.5-1998（接管标准为SN3405系列）单位：英制公称通径DN管子外径A（）法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封
21、面法兰厚度C法兰高度H法兰颈N法兰内径B数量n螺纹Th.df1/23/4121.326.933.73.503.884.252.382.753.120.620.620.62444M12M12M121.381.692.000.060.060.060.440.500.560.620.620.691.191.501.940.881.091.361 1/41 1/2242.448.360.34.625.006.003.503.884.750.620.620.75444M12M12M162.502.883.620.060.060.060.620.690.750.810.881.002.312.563.06
22、1.701.952.442 1/23476.188.9114.37.007.509.005.506.007.500.750.750.75448M16M16M164.125.006.190.060.060.060.880.940.941.121.191.313.564.255.312.943.574.57568139.7168.3219.110.011.013.58.509.5011.750.880.880.88888M20M20M207.318.5010.620.060.060.060.941.001.121.441.561.756.447.569.695.666.728.721012273.
23、0329.916.019.014.2517.01.001.001212M22M2212.7515.00.060.061.191.251.942.1912.014.3810.8812.881416355.6406.421.023.518.7521.251.121.121216M24M2416.2518.500.060.061.381.442.252.5015.7518.014.1416.163.CLASS300 ANSI B16.5-1998（接管标准为SN3405系列）单位：英制公称通径DN管子外径A（）法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰高度H法兰颈N法兰内径B数
24、量n螺纹Th.df1/23/4121.326.933.73.754.624.882.623.253.500.620.750.75444M12M16M161.381.692.000.060.060.060.560.620.690.881.001.061.501.882.120.881.091.361 1/41 1/2242.448.360.35.256.126.503.884.505.000.750.880.75448M16M20M162.502.883.620.060.060.060.750.810.881.061.191.312.502.753.311.701.952.442 1/23476
25、.188.9114.37.508.2510.05.886.627.880.880.880.88888M20M20M204.125.006.190.060.060.061.001.121.251.501.691.883.944.625.752.943.574.57568139.7168.3219.111.012.515.09.2510.6213.00.880.881.0081212M20M20M227.318.5010.620.060.060.061.381.441.622.002.062.447.008.1210.255.666.728.721012273.0329.917.520.515.2
26、517.751.121.251616M24M2712.7515.00.060.061.882.002.622.8812.6214.7510.8812.881416355.6406.423.025.520.2522.51.251.382020M27M3016.2518.500.060.062.122.253.003.2516.7519.014.1416.164.CLASS150 ANSI B16.5-1998（接管标准为公制）单位：英制公称通径DN管子外径A（）法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰高度H法兰颈N法兰内径B数量n螺纹Th.df1/23/411825323
27、.503.884.252.382.753.120.620.620.62444M12M12M121.381.692.000.060.060.060.440.500.560.620.620.691.191.501.9418.525.532.51 1/41 1/223845574.625.006.003.503.884.750.620.620.75444M12M12M162.502.883.620.060.060.060.620.690.750.810.881.002.312.563.0639.046.058.52 1/23476891087.007.509.005.506.007.500.750.
28、750.75448M16M16M164.125.006.190.060.060.060.880.940.941.121.191.313.564.255.3177.590.5110.056813315921910.011.013.58.509.5011.750.880.880.88888M20M20M207.318.5010.620.060.060.060.941.001.121.441.561.756.447.569.69135.0161.0222101227332516.019.014.2517.01.001.001212M22M2212.7515.00.060.061.191.251.94
29、2.1912.014.38276328141637742621.023.518.7521.251.121.121216M24M2416.2518.500.060.061.381.442.252.5015.7518.03814315.CLASS300 ANSI B16.5-1998（接管标准为公制）单位：英制公称通径DN管子外径A（）法兰外径D螺栓孔中心圆直径K螺栓孔径L螺 栓密封面法兰厚度C法兰高度H法兰颈N法兰内径B数量n螺纹Th.df1/23/411825323.754.624.882.623.253.500.620.750.75444M12M16M161.381.692.000.060.060.060.560.620.690.881.001.061.501.882.1218.525.532.51 1/41 1/223845575.256.126.503.884.505.000.750.880.75448M16M20M162.502.883.620.060.060.060.750.810.881.061.191.312.502.753.3139.046.058.52 1/23476891087.508.2510.05.886.627.880.880.880.88888M20M20M204.125.006.190.060.060.061.001.121.251.50
