A48Y-16-25弹簧全启式安全阀（法兰连接 A48Y型适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上。 连接法兰标准PN＜6.4MPa按JB/T-94系列1。PN≥6.4MPa按JB/T-94系列2标准。 主要零部件材料 NO. | 零件名称 | A48Y-C A44Y-C 材料 | A44Y-P材料 | A44Y-R材料 | 1 | 阀体 | WCB | ZG1Cr18Ni9Ti | CF8M | 2 | 阀座 | 2Cr13 | 1Cr18Ni9Ti | 316 | 3 | 调节圈 | ZG2Cr13 | ZG1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 4 | 反冲盘 | ZG2Cr13 | ZG1Cr18Ni9Ti | 316 | 5 | 阀瓣 | 2Cr13 | 1Cr18Ni9Ti | 316 | 6 | 导向套 | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 7 | 阀盖 | ZG230-450 | ZG230-450 | ZG230-450 | 8 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 | 9 | 阀杆 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 10 | 扳手 | ZG200-400 | ZG200-400 | ZG200-400 | 11 | 调整螺杆 | 45 | 2Cr13 | 2Cr13 | 12 | 保护罩 | ZG200-400 | ZG200-400 | 316 | | 密封面材料 | 堆焊Co基硬质合金 |
外形尺寸和连接尺寸 型号 | 公称通径 | do | D | K | g | g1 | b | f | f1 | Z-ød | DN"" | D1 | K1 | g3 | g2 | b1 | f"" | f1"" | Z1-ød1 | L | L1 | ≈H | A48Y-16C | 20 | 15 | 105 | 75 | | 55 | 16 | 2 | | 4-14 | 25 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 110 | 95 | 411 | 25 | 16 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 32 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 110 | 95 | 411 | 32 | 20 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 40 | 150 | 110 | | 85 | 18 | 3 | | 4-18 | 115 | 100 | 411 | 40 | 25 | 150 | 110 | | 85 | 18 | 3 | | 4-18 | 50 | 165 | 125 | | 100 | 20 | 3 | | 4-18 | 120 | 110 | 472 | 50 | 32 | 165 | 125 | | 100 | 20 | 3 | | 4-18 | 65 | 185 | 145 | | 120 | 20 | 3 | | 4-18 | 135 | 120 | 532 | 65 | 40 | 185 | 145 | | 120 | 20 | 3 | | 4-18 | 80 | 200 | 160 | | 135 | 20 | 3 | | 8-18 | 160 | 140 | 556 | 80 | 50 | 200 | 160 | | 135 | 20 | 3 | | 8-18 | 100 | 220 | 180 | | 155 | 22 | 3 | | 8-18 | 170 | 135 | 561 | 100 | 65 | 220 | 180 | | 155 | 20 | 3 | | 8-18 | 125 | 250 | 210 | | 185 | 22 | 3 | | 8-18 | 195 | 175 | 667 | 125 | 80 | 250 | 210 | | 185 | 22 | 3 | | 8-18 | 150 | 285 | 240 | | 210 | 24 | 3 | | 8-23 | 210 | 190 | 857 | 150 | 100 | 285 | 240 | | 210 | 24 | 3 | | 8-23 | 175 | 310 | 270 | | 240 | 26 | 3 | | 8-23 | 255 | 230 | 915 | 200 | 125 | 340 | 295 | | 265 | 26 | 3 | | 12-23 | 250 | 405 | 355 | | 320 | 30 | 3 | | 12-26 | 300 | 260 | 1073 | 250 | 150 | 405 | 355 | | 320 | 30 | 3 | | 12-26 | 300 | 460 | 410 | | 375 | 30 | 4 | | 12-26 | 350 | 320 | 1307 | 300 | 220 | 460 | 410 | | 375 | 30 | 4 | | 12-26 | 400 | 580 | 525 | | 485 | 36 | 4 |
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