

A41H弹簧微启封闭式安全阀
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| 设计规范 | GB/T 12243 |
| 结构长度 | GB/T 12221 |
| 法兰连接 | JB/T 79 |
| 试验与检验 | GB/T 12242 |
| 产品标识 | GB/T 12220 |
| 供货规范 | JB/T 7928 |
| 公称压力(MPa) | 整定压力等级 | |||||||
| 1.6 | 0.06~0.1 | 0.1~0.16 | 0.16~0.25 | 0.4~0.6 | 0.6~0.8 | 0.8~1.0 | 1.0~1.3 | 1.3~1.6 |
| 2.5 | 1.3~1.6 | 1.6~2.0 | 2.0~2.5 | |||||
| 4.0 | 1.3~1.6 | 1.6~2.0 | 2.0~2.5 | 2.5~3.2 | 3.2~4.0 | |||
| 6.4 | 2.5~3.2 | 3.2~4.0 | 4.0~5.0 | 5.0~6.4 | ||||
| 10.0 | 3.2~4.0 | 4.0~5.0 | 5.0~6.4 | 6.4~8.0 | 8.0~10.0 | |||
| 型号 |
铸钢型 A41H/Y-C |
304不锈钢型 A41H/Y-P |
316不锈钢型 A41H/Y-R |
316L不锈钢型 A41H/Y-R3 |
|
| 口径范围 | DN15~DN300 | ||||
| 适用温度 | ≤200°C | ||||
| 适用介质 | 水、蒸汽、油品 | 腐蚀性介质 | 腐蚀性介质 | 腐蚀性介质 | |
| 材料 | 1、阀座 | 2Cr13 | CF8 | CF8M | CF3M |
| 2、阀体 | WCB | CF8 | CF8M | CF3M | |
| 3、调节圈 | 2Cr13 | 304SS | 316SS | 316L | |
| 4、阀瓣 | 2Cr13 | 304SS | 316SS | 316L | |
| 5、导向套 | 2Cr13 | 304SS | 316SS | 316L | |
| 6、阀盖 | WCB | CF8 | CF8M | CF3M | |
| 7、弹簧 | 50CrVa | 50CrVa包覆TEFLON | 50CrVa包覆TEFLON | 50CrVa包覆TEFLON | |
| 8、阀杆 | 2Cr13 | 2Cr13 | 316SS | 316L | |
| 9、调整螺杆 | 45#钢 | 2Cr13 | 2Cr13 | 2Cr13 | |
| 10、保护罩 | ZG200 | ZG200 | ZG200 | ZG200 | |
| 密封面材料 | 堆焊Co基硬质合金 | 堆焊Co基硬质合金 | 堆焊Co基硬质合金 | 堆焊Co基硬质合金 | |

| 型号 | 公称通径(DN) | do | D | K | g | g1 | b | f | f1 | Z-ød | DN¹ | D1 | k1 | g² | g¹ | b1 | f¹ | f1¹ | Z1-ød1 | L | L1 | ≈H |
|
A41H-16C A41Y-16P A41Y-16R |
20 | 15 | 105 | 75 | / | 55 | 16 | 2 | / | 4-14 | 20 | 105 | 75 | 55 | / | 16 | 2 | / | 4-14 | 100 | 85 | 76 |
| 25 | 20 | 115 | 85 | / | 65 | 16 | 2 | / | 4-14 | 25 | 115 | 85 | 65 | / | 16 | 2 | / | 4-14 | 100 | 85 | 276 | |
| 32 | 25 | 140 | 100 | / | 78 | 18 | 2 | / | 4-18 | 32 | 140 | 100 | 78 | / | 18 | 2 | / | 4-18 | 115 | 100 | 285 | |
| 40 | 32 | 150 | 110 | / | 85 | 18 | 3 | / | 4-18 | 40 | 150 | 110 | 85 | / | 18 | 3 | / | 4-18 | 120 | 110 | 292 | |
| 50 | 40 | 165 | 125 | / | 100 | 20 | 3 | / | 4-18 | 50 | 165 | 125 | 100 | / | 20 | 3 | / | 4-18 | 135 | 120 | 370 | |
| 65 | 50 | 185 | 145 | / | 120 | 20 | 3 | / | 4-18 | 65 | 185 | 145 | 120 | / | 20 | 3 | / | 4-18 | 140 | 130 | 375 | |
| 80 | 65 | 200 | 160 | / | 135 | 20 | 3 | / | 8-18 | 80 | 200 | 160 | 135 | / | 20 | 3 | / | 8-18 | 160 | 135 | 373 | |
| 100 | 80 | 220 | 180 | / | 155 | 22 | 3 | / | 8-18 | 100 | 220 | 180 | 155 | / | 22 | 3 | / | 8-18 | 170 | 160 | 513 | |
| 125 | 100 | 250 | 210 | / | 185 | 22 | 3 | / | 8-18 | 125 | 250 | 210 | 185 | / | 22 | 3 | / | 8-18 | 190 | 190 | 560 | |
| 150 | 125 | 285 | 240 | / | 210 | 24 | 3 | / | 8-23 | 150 | 285 | 240 | 210 | / | 24 | 3 | / | 8-23 | 205 | 195 | 570 | |
| 200 | 150 | 340 | 295 | / | 265 | 26 | 3 | / | 12-23 | 200 | 340 | 295 | 265 | / | 26 | 3 | / | 12-23 | 240 | 230 | 717 | |
| 250 | 200 | 405 | 355 | / | 320 | 30 | 3 | / | 12-26 | 250 | 405 | 355 | 320 | / | 30 | 3 | / | 12-26 | 350 | 320 | 940 | |
| 300 | 250 | 460 | 410 | / | 375 | 30 | 4 | / | 12-26 | 300 | 460 | 410 | 375 | / | 30 | 4 | / | 12-26 | 350 | 320 | 980 |