先导式安全泄压阀是一种新颖结构的安全阀。主要用于石油天然气、化工、电力、冶金和城市燃气等领域,是受压设备、容器或管路上的超压保护装置。其主要优点是变弹簧直接作用为导阀间接作用,提高了动作的灵敏度,而且主阀采用套筒活塞式,双重密封阀座结构,动作精度高、重复性好、回座快、不泄漏、能带高背压排放、工作等命长、工作稳定可靠,它还可在线调校,反复启跳排放后,仍然能自动回座,关闭严密,操作维护方便
主要零部件材料
NO. | 零件名称 | Ax46Y/F 材料 | KAX46Y/F材料 |
1 | 阀体 | WCB | WCB |
2 | 阀瓣 | 2Cr13/2Cr13+PTFE | 1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE |
3 | 导向套 | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
4 | 弹簧 | 50CrVA | 50CrVA |
5 | O型圈 | 氟橡胶 | 氟橡胶 |
6 | 阀盖 | 25 | 25 |
7 | 导阀 | 部件 |
■外形尺寸和连接尺寸
型号 | 公称通径 | do | L | L1 | L2 | H | DN" | D | D1 | D2 | D6 | b | Z-ød | D" | D1" | D2" | D6" | b" | Z"-ød" |
| 25 | 15 | 110 | 95 | 150 | 365 | 32 | 115 | 85 | 65 | | 16 | 4-14 | 140 | 100 | 78 | | 18 | 4-18 |
32 | 20 | 115 | 100 | 150 | 375 | 40 | 140 | 100 | 78 | | 18 | 4-18 | 150 | 110 | 85 | | 18 | 4-18 |
40 | 25 | 120 | 110 | 160 | 390 | 50 | 150 | 110 | 85 | | 18 | 4-18 | 165 | 125 | 100 | | 20 | 4-18 |
50 | 32 | 135 | 120 | 160 | 410 | 65 | 165 | 125 | 100 | | 20 | 4-18 | 185 | 145 | 120 | | 20 | 4-18 |
65 | 40 | 160 | 140 | 175 | 435 | 80 | 185 | 145 | 120 | | 20 | 4-18 | 200 | 160 | 135 | | 20 | 8-18 |
80 | 50 | 170 | 135 | 175 | 451 | 100 | 200 | 160 | 135 | | 20 | 8-18 | 220 | 180 | 155 | | 22 | 8-18 |
100 | 65 | 195 | 175 | 195 | 500 | 125 | 220 | 180 | 155 | | 22 | 8-18 | 250 | 210 | 185 | | 24 | 8-18 |
125 | 80 | 210 | 190 | 220 | 526 | 150 | 250 | 210 | 185 | | 22 | 8-18 | 285 | 240 | 210 | | 24 | 8-23 |
150 | 100 | 255 | 230 | 265 | 623 | 175 | 285 | 240 | 210 | | 24 | 8-23 | 315 | 270 | 240 | | 26 | 8-23 |
200 | 125 | 300 | 260 | 300 | 690 | 250 | 340 | 295 | 265 | | 26 | 12-23 | 405 | 355 | 320 | | 30 | 12-26 |
| 25 | 15 | 110 | 95 | 150 | 365 | 32 | 115 | 85 | 65 | | 16 | 4-14 | 140 | 100 | 78 | | 18 | 4-18 |
32 | 20 | 115 | 100 | 150 | 375 | 40 | 140 | 100 | 78 | | 18 | 4-18 | 150 | 110 | 85 | | 18 | 4-18 |
40 | 25 | 120 | 110 | 160 | 390 | 50 | 150 | 110 | 85 | | 18 | 4-18 | 165 | 125 | 100 | | 20 | 4-18 |
50 | 32 | 135 | 120 | 160 | 410 | 65 | 165 | 125 | 100 | | 20 | 4-18 | 185 | 145 | 120 | | 20 | 4-18 |
65 | 40 | 160 | 140 | 175 | 435 | 80 | 185 | 145 | 120 | | 22 | 8-18 | 200 | 160 | 135 | | 20 | 8-18 |
80 | 50 | 170 | 135 | 175 | 451 | 100 | 200 | 160 | 135 | | 22 | 8-18 | 220 | 180 | 155 | | 22 | 8-18 |
100 | 65 | 195 | 175 | 195 | 500 | 125 | 230 | 190 | 160 | | 24 | 8-23 | 250 | 210 | 185 | | 22 | 8-18 |
125 | 80 | 210 | 190 | 220 | 526 | 150 | 270 | 220 | 188 | | 28 | 8-26 | 285 | 240 | 210 | | 24 | 8-23 |
150 | 100 | 255 | 230 | 265 | 623 | 175 | 300 | 250 | 218 | | 30 | 8-26 | 310 | 270 | 240 | | 26 | 8-23 |
200 | 125 | 300 | 260 | 300 | 690 | 250 | 360 | 310 | 278 | | 34 | 12-26 | 405 | 355 | 320 | | 30 | 12-26 |
| 25 | 15 | 110 | 95 | 150 | 365 | 32 | 115 | 85 | 65 | 58 | 16 | 4-14 | 140 | 100 | 78 | | 18 | 4-18 |
32 | 20 | 115 | 100 | 150 | 375 | 40 | 140 | 100 | 78 | 66 | 18 | 4-18 | 150 | 110 | 85 | | 18 | 4-18 |
40 | 25 | 120 | 110 | 160 | 390 | 50 | 150 | 110 | 85 | 76 | 18 | 4-18 | 165 | 125 | 100 | | 20 | 4-18 |
50 | 32 | 135 | 120 | 160 | 410 | 65 | 165 | 125 | 100 | 88 | 20 | 4-18 | 185 | 145 | 120 | | 20 | 4-18 |
65 | 40 | 160 | 140 | 175 | 435 | 80 | 185 | 145 | 120 | 110 | 22 | 8-18 | 200 | 160 | 135 | | 20 | 8-18 |
80 | 50 | 170 | 135 | 175 | 451 | 100 | 200 | 160 | 135 | 121 | 22 | 8-18 | 220 | 180 | 155 | | 22 | 8-18 |
100 | 65 | 195 | 175 | 195 | 500 | 125 | 235 | 190 | 160 | 150 | 24 | 8-23 | 250 | 210 | 185 | | 22 | 8-18 |
125 | 80 | 210 | 190 | 220 | 526 | 150 | 270 | 220 | 188 | 176 | 28 | 8-26 | 285 | 240 | 210 | | 24 | 8-23 |
150 | 100 | 255 | 230 | 265 | 623 | 175 | 300 | 250 | 218 | 204 | 30 | 8-26 | 310 | 270 | 240 | | 26 | 8-23 |
200 | 125 | 300 | 260 | 300 | 690 | 250 | 375 | 320 | 282 | 260 | 38 | 12-30 | 405 | 355 | 320 | | 30 | 12-26 |
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