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DQ41F低温球阀
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产品型号:DQ41F/DQ47F
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公称压力:PN10-160MPa/Class150LB-1500LB
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适用温度:-196℃~150℃
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适用介质:液化天然气、液化石油气、液氮、液氨
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产品简介
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低温球阀适用于Class150~Class900、PN16~PN150的各种管路上,用于截断或接通管路中的介质。低温球阀良好的液流特性使其应用广泛,同时球阀操作方便,开闭迅速,从全开到全关只要旋转90°另外其结构简单,密封可靠,维修方便,在全开和全闭时,球体和阀座的密封面与介质隔离,高速通过阀门的介质也不会引起阀门密封面的侵蚀。低温球阀的驱动方式为手动、蜗轮传动、气动或电动。低温球阀一般采用法兰连接,也可采用对焊连接。
低温球阀的材料非常重要,材质不合格,会造成阀门壳体及密封面的外漏或内漏;零部件的综合机械性能、强度和钢度满足不了使用要求甚至断裂,导致液化天然气介质泄漏引起爆炸。秦工阀门生产的不锈钢低温球阀经特殊的低温处理,将粗加工的零件置于冷却介质中数小时(2-8小时),以释放应力,确保钢制低温球阀材料的低温性能,保证精加工尺寸,以防阀门在低温工况时,因温度变化造成变形而导致的泄漏。
低温球阀产品执行标准
品规范 Product specification |
设计与制造 Design manufacture |
结构长度 Structure length |
法兰尺寸 Flange size |
检验与实验 Inspection experiment |
GB/T 24925 |
ANSI B16.10 GB/T 12221 |
ANSI B16.5 HG 20592 |
API 598 GB/T 13927 |
低温球阀主要外形结构尺寸
美标低温球阀连接尺寸
磅级 Class |
规格 Size | 尺寸 Dimension | ||||||||
L | D | D1 | D2 | b | f | Z-d0 | ||||
DN | NPS | RF | RTJ | |||||||
150LB | 15 | 1/2 | 108 | 119 | 89 | 60.5 | 35 | 11.5 | 1.6 | 4-15 |
20 | 3/4 | 117 | 130 | 98 | 70 | 43 | 11.5 | 1.6 | 4-15 | |
25 | 1 | 127 | 140 | 108 | 79.5 | 51 | 12 | 1.6 | 4-15 | |
32 | 1-1/4 | 140 | 153 | 117 | 89 | 64 | 13 | 1.6 | 4-15 | |
40 | 1-1/2 | 165 | 178 | 127 | 98.5 | 73 | 15 | 1.6 | 4-15 | |
50 | 2 | 178 | 191 | 152 | 120.5 | 92 | 16 | 1.6 | 4-19 | |
65 | 2-1/2 | 190 | 203 | 178 | 139.7 | 105 | 18 | 1.6 | 4-19 | |
80 | 3 | 203 | 216 | 190 | 152.5 | 127 | 19 | 1.6 | 4-19 | |
100 | 4 | 229 | 242 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | |
125 | 5 | 256 | 369 | 254 | 215.9 | 186 | 24 | 1.6 | 8-22 | |
150 | 6 | 394 | 407 | 279 | 241.5 | 261 | 26 | 1.6 | 8-22 | |
200 | 8 | 457 | 470 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | |
250 | 10 | 533 | 546 | 406 | 362 | 324 | 31 | 1.6 | 12-25 | |
300LB | 15 | 1/2 | 140 | 151 | 95 | 66.5 | 35 | 14.3 | 1.6 | 4-15 |
20 | 3/4 | 152 | 165 | 117 | 82.5 | 43 | 15.9 | 1.6 | 4-19 | |
25 | 1 | 165 | 178 | 124 | 89 | 51 | 17.5 | 1.6 | 4-19 | |
32 | 1-1/4 | 178 | 191 | 133 | 98.5 | 64 | 19.1 | 1.6 | 4-19 | |
40 | 1-1/2 | 190 | 203 | 156 | 114.5 | 73 | 20.7 | 1.6 | 4-22 | |
50 | 2 | 216 | 232 | 165 | 127 | 92 | 22 | 1.6 | 8-19 | |
65 | 2-1/2 | 241 | 257 | 190 | 149 | 105 | 25 | 1.6 | 8-22 | |
80 | 3 | 283 | 299 | 210 | 168 | 170 | 29 | 1.6 | 8-22 | |
100 | 4 | 305 | 321 | 254 | 200 | 157 | 32 | 1.6 | 8-22 | |
125 | 5 | 381 | 397 | 279 | 235 | 186 | 35 | 1.6 | 8-22 | |
150 | 6 | 403 | 419 | 318 | 270 | 216 | 37 | 1.6 | 12-22 | |
200 | 8 | 502 | 518 | 381 | 330 | 270 | 41 | 1.6 | 12-25 | |
600LB | 15 | 1/2 | 165 | 165 | 95 | 66.5 | 35 | 14.3 | 6.4 | 4-16 |
20 | 3/4 | 190 | 190 | 118 | 82.5 | 43 | 15.9 | 6.4 | 4-19 | |
25 | 1 | 216 | 216 | 124 | 89 | 51 | 17.5 | 6.4 | 4-19 | |
32 | 1-1/4 | 229 | 229 | 133 | 98.5 | 64 | 21 | 6.4 | 4-19 | |
40 | 1-1/2 | 241 | 241 | 156 | 114.5 | 73 | 22.3 | 6.4 | 4-22 | |
50 | 2 | 292 | 292 | 165 | 127 | 92 | 25.4 | 6.4 | 8-19 | |
65 | 2-1/2 | 330 | 333 | 190 | 149 | 105 | 29 | 6.4 | 8-22 | |
80 | 3 | 356 | 359 | 210 | 168 | 127 | 32 | 6.4 | 8-22 | |
100 | 4 | 432 | 435 | 273 | 216 | 157.2 | 38.5 | 6.4 | 8-25 |
压力级 MPa |
公称通径 DN |
尺寸 Dimension | ||||||
L | D | D1 | D2 | b | f | Z-d | ||
PN1.6MPa | 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-14 |
20 | 140 | 105 | 75 | 55 | 16 | 2 | 4-14 | |
25 | 150 | 115 | 85 | 65 | 16 | 2 | 4-14 | |
32 | 165 | 135 | 100 | 78 | 18 | 2 | 4-18 | |
40 | 180 | 145 | 110 | 85 | 18 | 2 | 4-18 | |
50 | 200 | 160 | 125 | 100 | 20 | 3 | 4-18 | |
65 | 220 | 180 | 145 | 120 | 20 | 3 | 4-18 | |
80 | 250 | 195 | 160 | 135 | 20 | 3 | 8-18 | |
100 | 280 | 215 | 180 | 155 | 22 | 3 | 8-18 | |
125 | 320 | 245 | 210 | 185 | 22 | 3 | 8-18 | |
150 | 360 | 280 | 240 | 210 | 24 | 3 | 8-23 | |
200 | 400 | 335 | 295 | 265 | 26 | 3 | 12-23 | |
PN2.5MPa | 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-14 |
20 | 140 | 105 | 75 | 55 | 16 | 2 | 4-14 | |
25 | 150 | 115 | 85 | 65 | 16 | 2 | 4-14 | |
32 | 165 | 135 | 100 | 78 | 18 | 2 | 4-18 | |
40 | 180 | 145 | 110 | 85 | 18 | 2 | 4-18 | |
50 | 200 | 160 | 125 | 100 | 22 | 3 | 4-18 | |
65 | 220 | 180 | 145 | 120 | 22 | 3 | 8-18 | |
80 | 250 | 195 | 160 | 135 | 24 | 3 | 8-18 | |
100 | 280 | 230 | 190 | 160 | 26 | 3 | 8-23 | |
125 | 320 | 270 | 220 | 188 | 26 | 3 | 8-25 | |
150 | 360 | 300 | 250 | 218 | 28 | 3 | 8-25 | |
200 | 400 | 360 | 310 | 278 | 30 | 3 | 12-25 | |
PN4.0MPa | 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-14 |
20 | 140 | 105 | 75 | 55 | 16 | 2 | 4-14 | |
25 | 150 | 115 | 85 | 65 | 16 | 2 | 4-14 | |
32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-18 | |
40 | 200 | 145 | 110 | 85 | 18 | 2 | 4-18 | |
50 | 220 | 160 | 125 | 100 | 20 | 3 | 4-18 | |
65 | 250 | 180 | 145 | 120 | 22 | 3 | 8-18 | |
80 | 280 | 195 | 160 | 135 | 24 | 3 | 8-18 | |
100 | 320 | 230 | 190 | 160 | 24 | 3 | 8-23 | |
125 | 400 | 270 | 220 | 188 | 26 | 3 | 8-25 | |
150 | 400 | 300 | 250 | 218 | 28 | 3 | 8-25 | |
200 | 457 | 375 | 320 | 282 | 34 | 3 | 12-30 | |
PN6.4MPa | 15 | 140 | 105 | 75 | 55 | 18 | 2 | 4-14 |
20 | 152 | 125 | 90 | 68 | 20 | 2 | 4-14 | |
25 | 165 | 135 | 100 | 78 | 22 | 2 | 4-18 | |
32 | 178 | 150 | 110 | 82 | 24 | 2 | 4-18 | |
40 | 190 | 165 | 125 | 95 | 24 | 2 | 4-23 | |
50 | 216 | 175 | 135 | 105 | 26 | 3 | 4-23 | |
65 | 24 | 200 | 160 | 130 | 26 | 3 | 8-23 | |
80 | 283 | 210 | 170 | 140 | 28 | 3 | 8-23 | |
100 | 305 | 250 | 200 | 168 | 30 | 3 | 8-25 |
订购:DQ41F低温球阀