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美标截止阀法兰连接的截止阀适用于公称压力PN1．6～16MPa，工作温度-29～550℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。驱动方式有手动、齿轮传动、电动、气动等.
J41H美标截止阀主要零件材料及性能
| 体、盖 | 阀杆 | 密封面 | 垫片（环） | 填料 | 工作温度 | 适用介质 |
| WCB | 2Cr13 | 13Cr STL 木体材料 With Body Material 尼龙 Nylon | 增强柔性石墨 13Cr/柔性石墨 Enhanced Flexible Graphite 1Cr13/Flexible Graphite SFB-2 08软钢 08 Soft Steal F304 F316 F304L F316L | 柔性石墨 增强柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE | ≤425 | 水 蒸汽 油品 Water Steam Petroleum Products |
| WC1 | 38CrMoAl 25Cr2MoV | ≤425 | ||||
| WC6 | ≤540 | |||||
| WC9 | ≤570 | |||||
| C5 C12 | ≤540 | |||||
| CF8 | F304 | ≤200 | 硝酸 醋酸 尿素 Nitric acid Acetic acid | |||
| CF8M | F316 | |||||
| CF3 | F304L | |||||
| CF3M | F316L |
J41H美标截止阀主要尺寸
| DN | 150Lb 凸面法兰（RF) 主要尺寸Dimensions（mm） | 重量 Weight | ||||||||
| mm | in | L | D | D1 | D2 | b | n-φd | H | D0 | |
| 15 | 1/2 | 108 | 89 | 60.5 | 35 | 11.2 | 4-16 | 241 | 100 | 6.9 |
| 20 | 3/4 | 117 | 98 | 69.9 | 43 | 12.7 | 4-16 | 241 | 100 | 9.8 |
| 25 | 1 | 127 | 108 | 79.2 | 51 | 14.2 | 4-16 | 242 | 125 | 13.5 |
| 32 | 11/4 | 140 | 117 | 89 | 63 | 16 | 4-16 | 280 | 160 | 19.5 |
| 40 | 11/2 | 165 | 127 | 98.6 | 73 | 17.5 | 4-16 | 286 | 160 | 28.5 |
| 50 | 2 | 203 | 152 | 120.7 | 92 | 19 | 4-19 | 368 | 200 | 18 |
| 65 | 21/2 | 216 | 178 | 139.7 | 105 | 22.4 | 4-19 | 387 | 200 | 30 |
| 80 | 3 | 241 | 190 | 152.4 | 127 | 24 | 4-19 | 411 | 250 | 41 |
| 100 | 4 | 292 | 229 | 190.5 | 157 | 24 | 4-19 | 454 | 250 | 64 |
| 125 | 5 | 356 | 254 | 216.0 | 186 | 24 | 8-22.5 | 455 | 350 | 86 |
| 150 | 6 | 406 | 279 | 241.3 | 216 | 25.4 | 8-22.5 | 541 | 350 | 113 |
| 200 | 8 | 495 | 343 | 298.5 | 270 | 28.4 | 8-22.5 | 651 | 450 | 178 |
| 250 | 10 | 622 | 406 | 362.0 | 324 | 30.2 | 12-25.4 | 800 | 450 | 270 |
| 300 | 12 | 698 | 483 | 431.8 | 381 | 32 | 12-25.4 | 1231 | 600 | 350 |
| 350 | 14 | 787 | 533 | 476.3 | 413 | 35 | 12-29 | 1450 | 600 | 460 |
| 400 | 16 | 914 | 597 | 539.8 | 470 | 36.6 | 26-29 | 1645 | 600 | 590 |
