序号规格螺母厚垫片厚1M1210.82.52M1412.82.53M1614.83.04M1815.83.05M20183.06M2219.43.07M2421.54.08M2723.84.0 普通螺栓型号法兰与配用螺栓（带颈对焊、平焊）序号法兰规格配用螺栓法兰孔数法兰厚度115-16M1255416215-25M1255416320-16M1260418420-25M1260418525-16M1260418625-25M1260418740-16M1665418840-25M1665418950-16M16654181050-25M16704201165-25M16758221280-16M16708201380-25M168082414100-16M167082015100-25M208082416150-16M208082217150-25M249582818200-16M2080122419200-25M24100123020250-10M2085122621250-16M2490122622250-25M27110123223300-25M27115163424350-16M24105163025450-10M241002028