| ■产品简介: |
A48H/Y弹簧全启式安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上。A44Y适用于工作温度≤300℃的空气、石油等介质的设备或管路上，作为超压保护装置.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 |
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| ■主要外形尺寸： |
| 型号 | 公称通径 | do | D | K | g | g1 | b | f | f1 | Z-?d | DN’ | D1 | K1 | g3 | g2 | b1 | f’ | f1’ | Z1-?d1 | L | L1 | ≈H | | A48Y-16C A44Y-16C A44Y-16P A44Y-16R | 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 | / | 16-30 | 370 | 350 | 1233 | | 350 | 250 | 520 | 470 | / | 435 | 34 | 4 | / | 16-26 | 500 | 715 | 650 | / | 608 | 44 | 4 | / | 20-34 | 500 | 450 | 1711 | | 400 | 280 | 580 | 525 | / | 485 | 36 | 4 | / | 16-30 | 500 | 715 | 650 | / | 608 | 44 | 4 | / | 20-34 | 500 | 450 | 1780 |
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