A42Y適用于工作溫度≤300℃空氣、石油氣、液體等介質的設備和管路上。A42Y-P型及A42Y-R型適用于工作溫度≤200℃有腐蝕性的介質的設備和管路上，作為超壓保護裝置。 主要零部件材料： NO. | 零件名稱 | A42Y-C/KA42Y-C材料 | A42Y-P/KA42Y-P材料 | A42Y-R材料 | DA42Y-P材料 | 1 | 閥座 | 2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti | 2 | 閥體 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | LCB/ZG1Cr18Ni9Ti | 3 | 調節圈 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti | 4 | 反沖盤 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti | 5 | 閥瓣 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti | 6 | 導向套 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti | 7 | 閥蓋 | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti | 8 | 彈簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 | 50CrVA | 9 | 閥桿 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti | 10 | 調整螺桿 | 45 | 2Cr13 | 2Cr13 | 2Cr13 | 11 | 閥帽 | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |
| 密封面材料 | 堆焊Co基硬質合金 |
外形尺寸和連接尺寸： 型號 | 公稱通徑 | do | D | K | g | g1 | b | f | f1 | Z-?d | L | L1 | ≈H | A42Y-16C
A42Y-16P
A42Y-16R
KA42Y-16C DA42Y-16C(P) | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 110 | 95 | 378 | 25 | 16 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 110 | 95 | 378 | 32 | 20 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 115 | 100 | 378 | 40 | 25 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 120 | 110 | 406 | 50 | 32 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 135 | 120 | 450 | 65 | 40 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 160 | 140 | 520 | 80 | 50 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 170 | 135 | 525 | 100 | 65 | 220 | 180 |
| 155 | 22 | 3 |
| 8-18 | 195 | 175 | 690 | 125 | 80 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 210 | 190 | 780 | 150 | 100 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 255 | 230 | 838 | 200 | 125 | 340 | 295 |
| 265 | 26 | 3 |
| 12-23 | 300 | 260 | 992 | 250 | 150 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 350 | 320 | 1266 | 300 | 220 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 370 | 350 | 1283 | 350 | 250 | 520 | 470 |
| 435 | 34 | 4 |
| 16-26 | 500 | 450 | 1520 | 400 | 280 | 580 | 525 |
| 485 | 36 | 4 |
| 16-30 | 500 | 450 | 1530 | A42Y-25C
A42Y-25P
A42Y-25R
KA42Y-25C DA42Y-25(P) | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 110 | 95 | 378 | 25 | 16 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 110 | 95 | 378 | 32 | 20 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 115 | 100 | 378 | 40 | 25 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 120 | 110 | 406 | 50 | 32 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 135 | 120 | 450 | 65 | 40 | 185 | 145 |
| 120 | 22 | 3 |
| 8-18 | 160 | 140 | 520 | 80 | 50 | 200 | 160 |
| 135 | 22 | 3 |
| 8-18 | 170 | 135 | 525 | 100 | 65 | 230 | 190 |
| 160 | 24 | 3 |
| 8-23 | 195 | 175 | 690 | 125 | 80 | 270 | 220 |
| 188 | 28 | 3 |
| 8-26 | 210 | 190 | 780 | 150 | 100 | 300 | 250 |
| 218 | 30 | 3 |
| 8-26 | 255 | 230 | 838 | 200 | 125 | 360 | 310 |
| 278 | 34 | 3 |
| 12-26 | 300 | 260 | 992 | 250 | 150 | 425 | 370 |
| 332 | 36 | 3 |
| 12-30 | 350 | 320 | 1266 | 300 | 220 | 485 | 430 |
| 390 | 40 | 4 |
| 16-30 | 370 | 350 | 1283 |
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