點(diǎn)擊圖片查看大圖高壓截止閥概述：
高壓截止閥的啟閉件是塞形的閥瓣，密封面呈平面或錐面，閥瓣沿流體的中心線作直線運(yùn)動(dòng)。閥桿的運(yùn)動(dòng)形式，有升降桿式（閥桿升降，手輪不升降），也有升降旋轉(zhuǎn)桿式（手輪與閥桿一起旋轉(zhuǎn)升降，螺母設(shè)在閥體上）。截止閥只適用于全開和全關(guān)，不允許作調(diào)節(jié)和節(jié)流。
J41W高壓截止閥主要規(guī)格尺寸和重量：
| 2.5MPa | DN | L | D | D1 | D2 | b | n-φd | H | D0 | 重量 Weight |
|
凸面法蘭 RF J41H J41Y J41W J41F J41N 25 25P 25R 25I |
10 | 130 | 90 | 60 | 40 | 16 | 4-14 | 198 | 120 | 4.9 |
| 15 | 130 | 95 | 65 | 45 | 16 | 4-14 | 218 | 120 | 5.3 | |
| 20 | 150 | 105 | 75 | 55 | 16 | 4-14 | 258 | 140 | 7.0 | |
| 25 | 160 | 115 | 85 | 65 | 16 | 4-14 | 275 | 160 | 7.4 | |
| 32 | 180 | 135 | 100 | 78 | 18 | 4-18 | 280 | 180 | 8.3 | |
| 40 | 200 | 145 | 110 | 85 | 18 | 4-18 | 330 | 200 | 12.6 | |
| 50 | 230 | 160 | 125 | 100 | 20 | 4-18 | 350 | 240 | 16 | |
| 65 | 290 | 180 | 145 | 120 | 22 | 8-18 | 400 | 280 | 25 | |
| 80 | 310 | 195 | 160 | 135 | 22 | 8-18 | 355 | 280 | 30 | |
| 100 | 350 | 230 | 190 | 160 | 24 | 8-23 | 415 | 320 | 34.8 | |
| 125 | 400 | 270 | 220 | 188 | 28 | 8-25 | 460 | 360 | 89.5 | |
| 150 | 480 | 300 | 250 | 218 | 30 | 8-25 | 510 | 400 | 99 | |
| 200 | 600 | 360 | 310 | 278 | 34 | 12-25 | 710 | 400 | 181 | |
| 250 | 622 | 425 | 370 | 332 | 36 | 12-30 | 786 | 450 | 445 | |
| 300 | 698 | 485 | 430 | 390 | 40 | 16-30 | 925 | 500 | 651 | |
| 4.0MPa | 20 | 150 | 105 | 75 | 51 | 16 | 4-14 | 275 | 140 | 7 |
|
凹凸法蘭 MFM J41H J41Y J41W J41F J41N 40 40P 40R 40I |
||||||||||
| 25 | 160 | 115 | 85 | 58 | 16 | 4-14 | 285 | 160 | 9 | |
| 32 | 180 | 135 | 100 | 66 | 18 | 4-18 | 302 | 180 | 12 | |
| 40 | 200 | 1445 | 110 | 76 | 18 | 4-18 | 355 | 200 | 17 | |
| 50 | 230 | 160 | 125 | 88 | 20 | 4-18 | 373 | 240 | 24 | |
| 65 | 290 | 180 | 145 | 110 | 22 | 8-18 | 408 | 280 | 33 | |
| 80 | 310 | 195 | 160 | 121 | 22 | 8-18 | 436 | 320 | 44 | |
| 100 | 350 | 230 | 190 | 150 | 24 | 8-23 | 480 | 360 | 60 | |
| 125 | 400 | 270 | 220 | 176 | 28 | 8-25 | 588 | 400 | 90 | |
| 150 | 480 | 300 | 250 | 204 | 30 | 8-25 | 611 | 400 | 100 | |
| 200 | 533 | 375 | 320 | 260 | 38 | 12-30 | 720 | 400 | 190 | |
| 6.4MPa | 20 | 190 | 125 | 90 | 51 | 20 | 4-18 | 228 | 160 | 13 |
|
凹凸法蘭 MFM J41H J41Y J41W J41F J41N 64 64P 64R 64I |
||||||||||
| 25 | 210 | 135 | 100 | 58 | 22 | 4-18 | 275 | 180 | 15 | |
| 32 | 230 | 150 | 110 | 66 | 24 | 4-23 | 325 | 200 | 19 | |
| 40 | 260 | 165 | 125 | 76 | 24 | 4-23 | 360 | 240 | 25 | |
| 50 | 300 | 175 | 135 | 88 | 26 | 4-23 | 410 | 280 | 35 | |
| 65 | 340 | 200 | 160 | 110 | 28 | 8-23 | 450 | 320 | 48 | |
| 80 | 380 | 210 | 170 | 121 | 30 | 8-23 | 485 | 360 | 56 | |
| 100 | 430 | 250 | 200 | 150 | 32 | 8-25 | 537 | 400 | 125 | |
| 125 | 500 | 295 | 240 | 176 | 36 | 8-30 | 631 | 400 | 130 | |
| 150 | 550 | 340 | 280 | 204 | 38 | 8-34 | 646 | 450 | 160 | |
| 200 | 650 | 405 | 345 | 260 | 44 | 12-34 | 813 | 500 | 285 | |
| 10.0MPa | 10 | 170 | 100 | 70 | 35 | 20 | 4-14 | 198 | 120 | 6 |
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