A42Y彈簧全啟式安全閥適用于工作溫度≤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(jié)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 |
