|   产品概述A42Y-C型适用于工作温度≤300℃空气、石油气、液体等介质的设备和管路上。A42Y-P型及A42Y-R型适用于工作温度≤200℃有腐蚀性的介质的设备和管路上,作为超压保护装置。主要零部件材料
| NO. | 零件名称 | A42Y-C/KA42Y-C材料 | A42Y-P/KA42Y-P材料 | A42Y-R材料 | DA42Y-P材料 |  
| 1 | 阀座 | 2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti |  
| 2 | 阀体 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | LCB/ZG1Cr18Ni9Ti |  
| 3 | 调节圈 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |  
| 4 | 反冲盘 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |  
| 5 | 阀瓣 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |  
| 6 | 导向套 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |  
| 7 | 阀盖 | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti |  
| 8 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 | 50CrVA |  
| 9 | 阀杆 | 2Cr13 | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |  
| 10 | 调整螺杆 | 45 | 2Cr13 | 2Cr13 | 2Cr13 |  
| 11 | 阀帽 | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |  
|  | 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-?d | DN" | D1 | K1 | g3 | g2 | b1 | f" | f1" | Z1-?d1 | L | L1 | ≈H |  
| A42Y-16C A42Y-16P
 A42Y-16R
 KA42Y-16C DA42Y-16C(P)
 | 20 | 15 | 105 | 75 |  | 55 | 16 | 2 |  | 4-14 | 25 | 115 | 85 |  | 65 | 16 | 2 |  | 4-14 | 110 | 95 | 378 |  
| 25 | 16 | 115 | 85 |  | 65 | 16 | 2 |  | 4-14 | 32 | 140 | 100 |  | 78 | 18 | 2 |  | 4-18 | 110 | 95 | 378 |  
| 32 | 20 | 140 | 100 |  | 78 | 18 | 2 |  | 4-18 | 40 | 150 | 110 |  | 85 | 18 | 3 |  | 4-18 | 115 | 100 | 378 |  
| 40 | 25 | 150 | 110 |  | 85 | 18 | 3 |  | 4-18 | 50 | 165 | 125 |  | 100 | 20 | 3 |  | 4-18 | 120 | 110 | 406 |  
| 50 | 32 | 165 | 125 |  | 100 | 20 | 3 |  | 4-18 | 65 | 185 | 145 |  | 120 | 20 | 3 |  | 4-18 | 135 | 120 | 450 |  
| 65 | 40 | 185 | 145 |  | 120 | 20 | 3 |  | 4-18 | 80 | 200 | 160 |  | 135 | 20 | 3 |  | 8-18 | 160 | 140 | 520 |  
| 80 | 50 | 200 | 160 |  | 135 | 20 | 3 |  | 8-18 | 100 | 220 | 180 |  | 155 | 22 | 3 |  | 8-18 | 170 | 135 | 525 |  
| 100 | 65 | 220 | 180 |  | 155 | 22 | 3 |  | 8-18 | 125 | 250 | 210 |  | 185 | 22 | 3 |  | 8-18 | 195 | 175 | 690 |  
| 125 | 80 | 250 | 210 |  | 185 | 22 | 3 |  | 8-18 | 150 | 285 | 240 |  | 210 | 24 | 3 |  | 8-23 | 210 | 190 | 780 |  
| 150 | 100 | 285 | 240 |  | 210 | 24 | 3 |  | 8-23 | 175 | 310 | 270 |  | 240 | 26 | 3 |  | 8-23 | 255 | 230 | 838 |  
| 200 | 125 | 340 | 295 |  | 265 | 26 | 3 |  | 12-23 | 250 | 405 | 355 |  | 320 | 30 | 3 |  | 12-26 | 300 | 260 | 992 |  
| 250 | 150 | 405 | 355 |  | 320 | 30 | 3 |  | 12-26 | 300 | 460 | 410 |  | 375 | 30 | 4 |  | 12-26 | 350 | 320 | 1266 |  
| 300 | 220 | 460 | 410 |  | 375 | 30 | 4 |  | 12-26 | 400 | 580 | 525 |  | 485 | 36 | 4 |  | 16-30 | 370 | 350 | 1283 |  
| 350 | 250 | 520 | 470 |  | 435 | 34 | 4 |  | 16-26 | 500 | 715 | 650 |  | 608 | 44 | 4 |  | 20-34 | 500 | 450 | 1520 |  |