JB/T 3878.1-1985 插入焊接式直角管接头

中华人民共和国机掀工业部部标准B38781--85插入焊接式直角管接头本标准规定了插入焊接式直角管接头,适用于油、气为介质的管路系统。其余导标记示例:管子外径D为28mm的插入焊接式直角管接头管接头28JB3878.1-85公称压力钢管外径Dd+0.5DHLR重量barDo十0g181018,538173214,50.43120120.54030191333153048818022I222,543322114341620,57032514|25.546341536170,64322t628.549361638180.720机碱工业部1985-0206发布1985-0701实施436JB38781-85续表公称压力钢管外径重量d +0.5 D, D2HI TTIbar0,4k3218|32.5544219,51.00425172235.5594422263402640.56548!2541.69018482842.568535026.51.934160503450.57861205730,527724649374342264374.17776567711392372482|4655178449065911301044126925261150技术条件按JB38788-85的规定。437