一、概述
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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。
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二、结构形式
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三、外形尺寸
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管子直径Do
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公称通径DN
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d
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d1
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d2
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d3
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d4(H12/h12)
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d5
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D+0.6/+0.44
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l
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l1
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l2
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6
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3
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M10X1
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7.5
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10
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6.5
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7
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12
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8
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14
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32
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10
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6
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M10X1
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11
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10
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10.5
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11
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22
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16
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8
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16.5
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35
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10
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6
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M14X1.5
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11
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14
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12
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16.5
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35
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14
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8
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M14X1.5
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16
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14
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14.5
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16
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28
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22
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12
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19
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43
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14
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8
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M18X1.5
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16
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19
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|
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12
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21
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43
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18
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10
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M18X1.5
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19
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19
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18.5
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19
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36
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27
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12
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21
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45
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18
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10
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M22X1.5
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19
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24
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|
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|
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14
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21
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45
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22
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15
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M22X1.5
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22
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24
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22.5
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22
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46
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30
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14
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21
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48
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22
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15
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M27X2
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22
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28
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|
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|
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16
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21
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48
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28
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20
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M27X2
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28
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28
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28.5
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28
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56
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36
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16
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24
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54
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28
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20
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M33X2
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28
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34
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|
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|
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16
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24
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54
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34
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25
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M33X2
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34
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34
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34.5
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34
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64
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42
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16
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26
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65
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34
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25
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M42X2
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34
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44
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|
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|
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18
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26
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65
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42
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32
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M42X2
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42
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44
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42.5
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42
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78
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52
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18
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28
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72
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42
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32
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M48X2
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42
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50
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20
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28
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72
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50
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40
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M48X2
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50
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50
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50.5
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50
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90
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60
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20
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30
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78
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管子直径Do
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公称通径DN
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l3
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l4
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L
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L1
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L2
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L3
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L4
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L5
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L6
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L7
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L8
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L9
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L10
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L11
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6
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3
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3
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22
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54
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30
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24
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12
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22
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41
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26
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20
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|
|
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10
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6
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4
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8
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24.5
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59.5
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32.5
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28.5
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15
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25.5
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44.5
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30.5
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21.5
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23
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8.5
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15
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10
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6
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|
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25.5
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60.5
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|
|
|
|
|
|
|
|
|
|
14
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8
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5
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10
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29
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72
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41
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35
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20
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29
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49
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38
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27
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29
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11
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20
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14
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8
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|
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29
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72
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|
|
|
|
|
|
|
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18
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10
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7
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12
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33
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78
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45
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39
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22
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33
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51
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42
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29
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34
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13
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25
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18
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10
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|
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33
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78
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|
|
|
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22
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15
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8
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14
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34
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82
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48
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43
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26
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35
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55
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46
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30
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43
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17
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30
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22
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15
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|
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35
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83
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|
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|
|
|
|
|
|
|
|
28
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20
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9
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15
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37
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91
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53
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48
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30
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39
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57
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51
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32
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50
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20
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35
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28
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20
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|
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39
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93
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|
|
|
|
|
|
|
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|
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34
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25
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10
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16
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46
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111
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62
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57
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36
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46
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62
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61
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37
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66
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27
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24
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34
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25
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|
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48
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113
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|
|
|
|
|
|
|
|
|
|
42
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32
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12
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17
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50
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122
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68
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64
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40
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48
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68
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68
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39
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82
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34
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30
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42
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32
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|
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52
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124
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|
|
|
|
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50
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40
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15
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19
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56
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134
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76
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74
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48
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54
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74
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78
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43
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94
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38
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33
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管子外径Do
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公称通径DN
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S
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S1
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S2
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S3
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S4
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S5
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S6
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S7
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O型圈JB/ZQ4224
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垫圈
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6
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3
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17
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14
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14
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14
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10
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17
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17
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8X1.9
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10
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10
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6
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17
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19
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17
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17
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14
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22
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22
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17
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11X1.9
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10
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10
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6
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19
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19
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19
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11X1.9
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14
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14
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8
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22
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27
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22
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22
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19
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30
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27
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19
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16X1.9
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14
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14
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8
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24
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27
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24
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|
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16X1.9
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18
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18
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10
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27
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32
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27
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27
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24
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36
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32
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24
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20X2.4
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18
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18
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10
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30
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32
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30
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20X2.4
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22
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22
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15
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30
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36
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30
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30
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27
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41
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36
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30
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24X2.4
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22
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22
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15
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36
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36
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|
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24X2.4
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27
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28
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20
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36
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41
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36
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36
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32
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50
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41
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36
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30X3.1
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27
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28
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20
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41
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41
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41
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|
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30X3.1
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33
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34
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25
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46
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50
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46
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46
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41
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55
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50
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41
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35X3.1
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33
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34
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25
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55
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50
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55
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35X3.1
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42
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42
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32
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55
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60
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55
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55
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50
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65
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60
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55
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40X3.1
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42
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42
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32
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60
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60
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60
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40X3.1
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48
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50
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40
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65
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70
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65
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65
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60
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70
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70
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60
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45X3.1
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48
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管子外径Do
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公称通径DN
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重量kg
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JB966-77
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JB1883-77
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JB970-77
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JB971-77
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JB972-77
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JB973-77
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JB974-77
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JB975-77
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JB977-77
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JN978-77
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6
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3
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0.039
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0.052
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0.028
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0.032
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0.064
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0.087
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0.077
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0.096
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0.021
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10
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6
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0.060
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0.082
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0.055
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0.068
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0.145
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0.190
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0.158
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0.183
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0.046
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0.059
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10
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6
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0.071
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0.103
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|
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|
|
|
|
|
14
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8
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0.143
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0.210
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0.150
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0.160
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0.370
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0.5
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0.344
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0.366
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0.12
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0.103
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14
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8
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0.155
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0.235
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18
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10
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0.199
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0.325
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0.190
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0.250
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0.510
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0.680
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0.505
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0.53
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0.160
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0.190
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18
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10
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0.236
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0.356
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|
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22
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15
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0.270
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0.436
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0.240
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0.310
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0.650
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0.880
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0.6
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0.67
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0.210
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0.342
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22
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15
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0.320
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0.480
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|
|
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28
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20
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0.390
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0.620
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0.370
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0.470
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0.920
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1.250
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0.95
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1.02
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0.280
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0.660
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28
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20
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0.450
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0.640
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34
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25
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0.600
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1.000
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0.630
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0.760
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1.530
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2.180
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1.68
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1.97
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0.470
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1.320
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34
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25
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0.850
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1.224
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42
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32
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1.060
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1.624
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1.050
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1.220
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2.400
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3.800
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2.03
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2.53
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0.670
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2.140
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42
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, , ,
32
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1.170
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1.730
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50
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40
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1.670
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2.430
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1.570
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2.050
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3.9
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5.300
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3.34
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3.84
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1.050
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3.330
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四、标记说明
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a、管子外径D0为18mm、螺纹直径d为22mm、螺距为1.5mm的焊接式端直通管接头:
管接头 18-M22 × 1.5 JB/966-77
b、管子外径D0为18mm、螺纹直径d为22mm、螺距为1.5mm的焊接式端直通长管接头:
管接头 18-M22×1.5 JB/1883-77
c、管子外径D0为28mm的焊接式端直通管接头:
管接头 28 JB970-77
d、管子外径D0为28mm的焊接式直角管接头:
管接头 28 JB971-77
e、管子外径D0为18mm的焊接式三通管接头:
管接头 18 JB972-77
f、管子外径D0为18mm的焊接式四通管接头:
管接头 18 JB973-77
g、管子外径D0为28mm的焊接式隔壁直通管接头:
管接头 28 JB974-77
h、管子外径D0为28mm的焊接式隔壁直通角管接头:
管接头 28 JB975-77
i、管子外径D0为28mm的焊接式分管管接头:
管接头 28 JB977-77
j、管子外径D0为28mm的A型焊接式铰管接头:
管接头 28A JB978-77
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