盲板规格尺寸

1、盲板规格尺寸盲板尺寸Pg=lKgPg=2.5KGPg=6KGPg=10KgPg=16KgPg=25KgDg=103535354040Dg=15404040:4545Dg=205050505858Dg=2560606068X668X6Dg=32707070X678X678X6Dg=4080X680X680X688X688X6Dg=5090X690X690X6102X6102X6Dg=65110X6110X6110X6122X6122X6Dg=80128X6128X6128X6138X6138X6Dg=100148X6148X6148X6158X6158X6162X6Dg=125178X8178X

2、8178X8188X8188X8188X8Dg=150202X10202X10202X10212X10212X10218X10Dg=l75232X10232X10232X10242X10242X10248X10Dg=200258X12258X12258X12268X12268X12278X12Dg=225282X12282X12282X12295X12295X12305X18Dg=250312X12312X12312X12320X12320X12335X18Dg=300365X12365X12365X12370X14378X14390X18Dg=350415X12415X12415X12430

3、X14438x18450X20Dg=400465X12465X12465X16482X18496X20505X20Dg=450520X12520X12520X18532X20550X20555X24Dg=500570X16570X18570X20585X20610X24615X24Dg=600670X18670X18670X24685X24720X24Dg=700775X18775X775X2184；Dg=80O880880880Dg=10O01080X201080X201080X20Dg=12001280X201280X201280X201:如无特殊情况，盲板材质选用A32:表中部分厚度为经

4、验值，仅供参考盲板厚度计算压力等级分为：低压：01.6Mpa中压:1.610MPa高压：10100MPa低压平板盲板厚度计算公式：8=dX(KXP/Rb)1/2+CS:盲板厚度，mmd:直径。以管道内径带入,mmK:计算系数，一般K=0.3P:操作压力，MPaRb:强度，为材料的抗拉强度，MPaC:为腐蚀增量，一般取1.52.0mm附表：盲板或者插班厚度(mm)(设计规定CD42A1-82)盲板规格工作压力(MPa)1.01.62.54.06.425一一8101032一一8rio1040一一810125088101012658810P121480881014141008810161812588

5、1016181501010122020200121416202425014162024283001618222834注：若管道内温度在120摄氏度以下，则中低压平板盲板与高压双凸面盲板皆用20#钢制作;若温度在120摄氏度以上，皆用30#钢制作。盲板的厚度计算夹在两法兰之间的盲板，其计算厚度可按式（1）确定。用整体钢板制造时，式中焊接接头系数。等于1。对于永久性盲板应按式（2）增加厚度附加量。Sm=0.433dgPV1t.Sd=Sm+2C2Sn=Sd+Cl+（3）式中Sm盲板计算厚度（mm;dG凹面或平面法兰垫片的内径或环梢式垫片平均直径（mm）;4 / 4盲板规格尺寸P设计压力（MPa）;(MP a