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1、JB/T81-94凸面板式平焊钢制管法兰尺寸表（PN0.25MPaPN2.5MPa）说 明1、 本法兰尺寸表整理依据：1）JB81-59凸面板式平焊钢制管法兰2）GB/T911288钢制管法兰 类型与参数、GB/T911988平面、突面板式平焊钢制管法兰3）夏平编制的JB81-94平焊钢制管法兰接管重量计算及绘图程序（源自“化工设备技术论坛”）4）HG2059297钢制管法兰形式、参数（欧洲体系）、HG2059397板式平焊钢制管法兰（欧洲体系）5）钢制管法兰（欧洲体系HG205922061497、美洲体系HG206152063597）编制说明2、尺寸表中系列1法兰连接尺寸与国标（GB）、化工
2、标准（HG）及德国法兰（DIN）标准互换，系列2尺寸与原机标（JB8159）尺寸互换，新产品设计优先采用系列1尺寸。2、 有三个法兰因螺栓个数不同，与GB、HG、DIN无法互换，分别是PN0.25MPaDN500、PN0.6MPaDN500、PN1.0MPaDN80。PN 0.25 MPa（2.5 Kgf/cm2）公 称直 径钢 管直 径法 兰螺 栓焊 接理 论重 量系列1/系列2DNd0DD0系列1/系列2D1D2fbd系列1/系列2数量n螺纹系列1/系列2ksminH101415755032210124M103340.25151819805540210124M103340.29202526
3、906550212124M103340.452532331007560212124M1043.550.553238391209070212144M1243.550.8040454613010080312144M1243.550.8750575914011090312144M1243.550.95657375160130110314144M125461.43808991190/185150125314184M165462.08/1.95100108110210/205170145314184M165462.34/2.20125133135240/235200175314188M165462.94
4、/2.78150159161265/260225200316188M1654.563.70/3.49（175）194196290255230316188M166673.86200219222320/315280255318188M167685.17/4.88（225）245248340305280320188M168795.93250273276375/3703353103221812M1698107.76/7.32300325328440/4353953624222312M2098109.89/9.40350377380490/4854454124222312M201091111.04/10
5、.50400426430540/5354954624222316M201091112.30/11.70450478482595/5905505184242316M201091115.63/14.90500529533645/6406005684242316M201091116.99/16.2060063063475570567052426/2520M24/M221091120.6070072072486081077552626/2524M24/M221091129.90PN 0.25 MPa（2.5 Kgf/cm2）公 称直 径钢 管直 径法 兰螺 栓焊 接理 论重 量系列1/系列2DNd0D
6、D0系列1/系列2D1D2fbd系列1/系列2数量n螺纹系列1/系列2ksminH8008208249759208805263024M271091136.70900920924107510209805283024M271091144.201000102010241175112010805303028M271091152.701200122011241375132012805303032M2711101265.901400142014241575152014805323036M2712111378.301600162016241790/1785173016905323040M2713121497
7、.28/94.30PN 0.6 MPa（6 Kgf/cm2）公称直径钢 管直 径法 兰螺 栓焊 接理 论重 量系列1/系列2DNd0DD0系列1/系列2D1D2fbd系列1/系列2数量n螺纹系列1/系列2ksminH101415755032212124M103340.31151819805540210124M103340.34202526906550214124M103340.542532331007560214124M1043.550.643238391209070216144M1243.551.1040454613010080316144M1243.551.2250575914011090
8、316144M1243.551.35657375160130110316144M125461.67808991190/185150125318184M165462.65/2.48100108110210/205170145318184M165463.08/2.89125133135240/235200175320188M165464.19/3.94150159161265/260225200320188M1654.564.75/4.47（175）194196290255230322188M166675.54200219222320/315280255322188M167686.44/6.07（225）245248340305280322188M168796.60250273276375/3703353103241812M1698108.51/8.03300325328440/4353953624242312M20981010.84/10.30350377380490/4854554124262312M201091113.25/12.59400426430540/5354954624282316M201091115.99/15.20450478482595/5905505184282316M201091118.47/17.59500529533645/64060056
