Y42X活塞式减压阀结构图
相关型号：Y42X-10/16/25/40/64C、P
Y42X活塞式减压阀主要尺寸参数
单位：毫米
Main overall & connecting dimensions Unit:mm
| DN | L | D2 | D1 | D | b | Z-φd | D4 | H1 | H2 |
| 20 | 160 | 55 | 75 | 105 | 14 | 4-14 | 105 | 89 | 312 |
| 25 | 180 | 65 | 85 | 115 | 14 | 4-14 | 115 | 101 | 328 |
| 32 | 200 | 78 | 100 | 135 | 16 | 4-18 | 130 | 107 | 320 |
| 40 | 220 | 85 | 110 | 145 | 16 | 4-18 | 145 | 113 | 325 |
| 50 | 250 | 100 | 125 | 160 | 16 | 4-18 | 155 | 120 | 335 |
| 65 | 280 | 120 | 145 | 180 | 18 | 4-18 | 170 | 140 | 365 |
| 80 | 310 | 135 | 160 | 195 | 20 | 8-18 | 200 | 150 | 385 |
| 100 | 350 | 155 | 180 | 215 | 20 | 8-18 | 200 | 150 | 385 |
| 125 | 400 | 185 | 210 | 245 | 22 | 8-18 | 235 | 185 | 425 |
| 150 | 450 | 210 | 240 | 280 | 24 | 8-23 | 265 | 320 | 445 |
| 200 | 550 | 265 | 295 | 335 | 26 | 12-23 | 315 | 245 | 515 |
| 250 | 650 | 320 | 355 | 405 | 30 | 12-25 | 500 | 280 | 585 |
| 300 | 800 | 375 | 410 | 460 | 30 | 12-25 | 610 | 310 | 625 |
Y42X活塞式减压阀执行标准
结构长度：ZB16004.. ...... Face to Face:ZB16004
法兰标准：JB79-59 .........Flange standard:JB79-59
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