焊接接头标准

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1、一、概述适用于以油为介质的管路系统用焊接式管接头。公称压力为31.5MPa，工作温度为-25～+80℃。焊接式端直通管接头、焊接式端直通长管接头、焊接式直通管接头、焊接式直角管接头，焊接式四通管接头，焊接式隔壁直通管接头、焊接式隔壁直角管接头、焊接式分管管接头、焊接式铰接管接头的型式和尺寸按图1～图10和表1的规定。二、结构形式三、外形尺寸管子直径Do公称通径DNdd1d2d3d4(H12/h12)d5D+0.6/+0.44ll1l263M10X17.5106.571281432106M10X1111010.5112216816.535106M14X

2、1.511141216.535148M14X1.5161414.5162822121943148M18X1.516191221431810M18X1.5191918.51936271221451810M22X1.519241421452215M22X1.5222422.52246301421482215M27X222281621482820M27X2282828.52856361624542820M33X228341624543425M33X2343434.53464421626653425M42X234441826654232M42X2424442

3、.54278521828724232M48X242502028725040M48X2505050.5509060203078管子直径Do公称通径DNl3l4LL1L2L3L4L5L6L7L8L9L10L116332254302412224126201064824.559.532.528.51525.544.530.521.5238.51510625.560.51485102972413520294938272911201482972181071233784539223351422934132518103378221581434824843263555

4、463043173022153583282091537915348303957513250203528203993342510164611162573646626137662724342548113423212175012268644048686839823430423252124504015195613476744854747843943833管子外径Do公称通径DNSS1S2S3S4S5S6S7O型圈JB/ZQ4224垫圈63171414141017178X1.910106171917171422221711X1.91010619191911X1

5、.914148222722221930271916X1.91414824272416X1.9181810273227272436322420X2.418181030323020X2.4222215303630302741363024X2.4222215363624X2.4272820364136363250413630X3.127282041414130X3.1333425465046464155504135X3.133342555505535X3.1424232556055555065605540X3.142423260606040X3.14850

6、40657065656070706045X3.148重量kg管子外径Do公称通径DNJB966-77JB1883-77JB970-77JB971-77JB972-77JB973-77JB974-77JB975-77JB977-77JN978-77630.0390.0520.0280.0320.0640.0870.0770.0960.0211060.0600.0820.0550.0680.1450.1900.1580.1830.0460.0591060.0710.1031480.1430.2100.1500.1600.3700.50.3440.3660

7、.120.1031480.1550.23518100.1990.3250.1900.2500.5100.6800.5050.530.1600.19018100.2360.35622150.2700.4360.2400.3100.6500.8800.60.670.2100.34222150.3200.48028200.3900.6200.3700.4700.9201.2500.951.020.2800.66028200.4500.64034250.6001.0000.6300.7601.5302.1801.681.970.4701.32034250.8

8、501.22442321.0601.6241.0501.2202.4003.8002.032.530.670