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应用范围: 1、设计制造: 按GB12224-89;GB12228-89;JB790-65、JB450-79; 2、连接端尺寸: 1)承插孔尺寸按JB1751-75 2)螺纹端尺寸按GB7306-81(RC) 3)法兰连接结构长度按JB97-75 4)法兰端尺寸按JB82-59 | 3、阀门检验和试验: 按GB13927-92 4、材料: 1)碳钢按GB699的规定 2)铬镍钼钢按GB1220的规定 |
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内螺纹或承插焊连接主要尺寸 |
规格DN | L1 | D5 | D6 | L2 | L3 | T(Rc) | W | H1(关) | H2(开) |
15 | 79 | 22.5 | 40 | 10 | 13.2 | 1/2 | 100 | 149 | 166 |
20 | 92 | 28.5 | 49 | 11 | 14.5 | 3/4 | 125 | 171 | 190 |
25 | 111 | 34.5 | 58 | 12 | 16.3 | 1 | 160 | 195 | 219 |
32 | 120 | 43 | 65 | 14 | 19.1 | 1 1 /4 | 160 | 212 | 246 |
40 | 152 | 49 | 78 | 15 | 19.1 | 1 1 /2 | 180 | 240 | 283 |
50 | 172 | 61 | 82 | 16 | 23.4 | 2 | 200 | 276 | 329 |
法兰连接主要尺寸 | 单位:mm |
代号/PN | 2.5MPa | 4 MPa | 6.4MPa | 10 MPa | 16 MPa | |||||||||||||||||||||||||
DN | 15 | 20 | 25 | 32 | 40 | 50 | 15 | 20 | 25 | 32 | 40 | 50 | 15 | 20 | 25 | 32 | 40 | 50 | 15 | 20 | 25 | 32 | 40 | 50 | 15 | 20 | 25 | 32 | 40 | 50 |
L4 | 130 | 150 | 160 | 180 | 200 | 250 | 130 | 150 | 160 | 180 | 200 | 250 | 170 | 190 | 210 | 230 | 260 | 300 | 170 | 190 | 210 | 230 | 260 | 300 | 170 | 190 | 210 | 230 | 260 | 300 |
D1 | 95 | 105 | 115 | 135 | 145 | 160 | 95 | 105 | 115 | 135 | 145 | 160 | 105 | 125 | 135 | 150 | 165 | 175 | 105 | 125 | 135 | 150 | 165 | 195 | 110 | 130 | 140 | 165 | 175 | 215 |
D2 | 65 | 75 | 85 | 100 | 110 | 125 | 65 | 75 | 85 | 100 | 110 | 125 | 75 | 90 | 100 | 110 | 125 | 135 | 75 | 90 | 100 | 110 | 125 | 145 | 75 | 90 | 100 | 115 | 125 | 165 |
D3 | 45 | 55 | 65 | 78 | 85 | 100 | 45 | 55 | 65 | 78 | 85 | 100 | 55 | 68 | 78 | 82 | 95 | 105 | 55 | 68 | 78 | 82 | 95 | 112 | 52 | 62 | 72 | 85 | 92 | 132 |
D4 | 17 | 22 | 27 | 34 | 42 | 51 | 17 | 22 | 27 | 34 | 42 | 51 | 17 | 22 | 27 | 34 | 42 | 51 | 17 | 22 | 27 | 34 | 42 | 51 | 17 | 22 | 27 | 34 | 42 | 51 |
b | 16 | 16 | 16 | 18 | 18 | 20 | 16 | 16 | 16 | 18 | 18 | 20 | 18 | 20 | 22 | 24 | 24 | 26 | 20 | 22 | 24 | 24 | 26 | 28 | 24 | 26 | 28 | 30 | 32 | 36 |
f1 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 |
φ | 14 | 14 | 14 | 18 | 18 | 18 | 14 | 14 | 14 | 18 | 18 | 18 | 14 | 18 | 18 | 23 | 23 | 23 | 14 | 18 | 18 | 23 | 23 | 25 | 18 | 23 | 23 | 25 | 27 | 28 |
n | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
f2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||||||
D7 | 40 | 51 | 58 | 66 | 76 | 88 | 40 | 51 | 58 | 66 | 76 | 88 | 40 | 51 | 58 | 66 | 76 | 88 | 40 | 51 | 58 | 66 | 76 | 88 |
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