一、法兰直通式高压截止阀介绍及用途：
手动、法兰连接、直通式、阀座密封面材料由阀体直接加工、公称压力PN2.5-6.4MPa、阀体材料有铸钢、不锈钢的截止阀。
法兰直通式高压截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，螺母设在阀体上）。截止阀只适用于全开和全关，不允许作调节和节流。
二、法兰直通式高压截止阀尺寸、规格和重量：
2.5MPa | DN | L | D | D1 | D2 | b | n-φd | H | D0 | 重量 Weight |
凸面法兰
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 |
凹凸法兰
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 |
凹凸法兰
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 |
| 20 | 190 | 125 | 90 | 51 | 22 | 4-18 | 228 | 160 | 13 |
25 | 210 | 135 | 100 | 58 | 24 | 4-18 | 250 | 180 | 14 |
32 | 230 | 150 | 110 | 66 | 24 | 4-23 | 326 | 220 | 16 |
40 | 260 | 165 | 125 | 76 | 26 | 4-23 | 359 | 240 | 30 |
50 | 300 | 195 | 145 | 88 | 28 | 4-25 | 414 | 280 | 50 |
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