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| 主 要 零 部 件 | 阀体、阀盖、摇杆 | WCB | CF8 | CF8M | WC6、WC9 |
| 阀瓣 | WCB堆Cr13或硬质合金 | CF8堆硬质合金 | CF8M堆硬质合金 | WC6、WC9堆硬质合金 | |
| 阀座 | 25堆Cr13或硬质合金 | 304堆硬质合金 | 316堆硬质合金 | 20Cr1MoV堆硬质合金 | |
| 垫片 | 软铁、XB450 | 聚四氟乙烯 | 聚四氟乙烯 | 不锈钢 耐酸石棉缠绕垫 | |
| 螺栓 | 35CrMoA | 35CrMoA | 35CrMoA | 25Cr1Mo1V | |
| 螺母 | 45 | 45 | 45 | 35CrMoA | |
| 主要参数 | 适用介质 | 油品、水、蒸汽 | 硝酸类 | 醋酸类 | 油品、水、蒸汽 |
| 适用温度 ℃ | ≤425 | ≤200 | ≤200 | ≤550 |
电站旋启式止回阀外形尺寸
| 型号 | 公称 通径 NPS（in） | 压力级 Class | 主要结构尺寸（mm） | 阀体 材料 | 性能规范 | |||||
| D | D1 | L | L1 | H | 适用温度（℃） | 适用介质 | ||||
| SFH-64C150C | 2" | 150 | | | 203 | | 170 | WCB | ≤425 | 水、油品、蒸气等 |
| " | 3" | " | | | 241 | | 185 | " | " | " |
| " | 4" | " | | | 292 | | 215 | " | " | " |
| " | 6" | " | | | 356 | | 260 | " | " | " |
| " | 8" | " | | | 495 | | 300 | " | " | " |
| " | 10" | " | | | 622 | | 350 | " | " | " |
| " | 12" | " | | | 699 | | 400 | " | " | " |
| " | 14" | " | | | 787 | | 450 | " | " | " |
| " | 16" | " | | | 864 | | 480 | " | " | " |
| " | 18" | " | | | 978 | | 540 | " | " | " |
| " | 20" | " | | | 978 | | 600 | " | " | " |
| " | 24" | " | | | 1295 | | 680 | " | " | " |
| SFH-64C300C | 2" | 300 | | | 267 | | 170 | WCB | ≤425 | 水、油品、蒸气等 |
| " | 3" | " | | | 318 | | 215 | " | " | " |
| " | 4" | " | | | 356 | | 235 | " | " | " |
| " | 6" | " | | | 445 | | 300 | " | " | " |
| " | 8" | " | | | 533 | | 340 | " | " | " |
| " | 10" | " | | | 622 | | 350 | " | " | " |
| " | 12" | " | | | 711 | | 420 | " | " | " |
| " | 14" | " | | | 838 | | 480 | " | " | " |
| " | 16" | " | | | 864 | | 520 | " | " | " |
| " | 18" | " | | | 978 | | 600 | " | " | " |
| " | 20" | " | | | 1016 | | 670 | " | " | " |
| " | 24" | " | | | 1346 | | 750 | " | " | " |
| SFH-64C600C | 2" | 600 | | | 292 | | 175 | WCB | ≤425 | 水、油品、蒸气 |
| " | 3" | " | | | 356 | | 230 | " | " | " |
| " | 4" | " | | | 432 | | 295 | " | " | " |
| " | 6" | " | | | 559 | | 360 | " | " | " |
| " | 8" | " | | | 660 | | 400 | " | " | " |
| " | 10" | " | | | 787 | | 460 | " | " | " |
| " | 12" | " | | | 838 | | 520 | " | " | " |
| " | 14" | " | | | 889 | | 560 | " | " | " |
| " | 16" | " | | | 991 | | 650 | " | " | " |
| " | 18" | " | | | 1092 | | 730 | " | " | " |
| " | 20" | " | | | 1194 | | 800 | " | " | " |
| " | 24" | " | | | 1397 | | 900 | " | " | " |
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