A62Y蝶形弹簧式安全阀(A42Y-A62Y)用途 A42Y/A62Y蝶形弹簧式安全阀适用于火力发电厂（站）蒸汽介质设备和管路上，作为超压保护装置。当设备和管路内压力超过允许值时，阀门自动开启，全量排放；当压力降到规定值时，阀门自动快速关闭，保证设备和管路安全、有效运行。
A62Y蝶形弹簧式安全阀(A42Y-A62Y)主要性能规范 |
Type | Nominal pressure
PN(MPa) | Test pressure Ps(MPa) | Working pressure p(MPa) | Working temperature | 试验温度 Test
temperature |
Seal | Strength |
A62Y-P54100V | 10 | 11 | 15 | 10 | 540 | 常温 |
A62Y-P31112 | 11.2 | 12.4 | 16.8 | 11.2 | 318 |
A62Y-P55140V | 14 | 15.4 | 21 | 14 | 555 |
A42Y-P55170V | 17 | 18.7 | 25.5 | 17 | 555 |
A42Y-P5526V | 2.6 | 2.9 | 3.9 | 2.6 | 555 |
A42Y-P4545 | 4.5 | 5 | 6.8 | 4.5 | 450 |
A42Y-P3326.5 | 2.7 | 3 | 4.1 | 2.7 | 330 |
A62Y蝶形弹簧式安全阀(A42Y-A62Y)主要零部件材料 | | |
零件名称 Name of part | 阀体 Body | 阀盖 | 阀杆 Stem | 蝶形弹簧 Butterfly soring | |
A62Y-P54100 | ZG15Cr1Mo1V | ZG25 | 38CrMoA1A | 60Si2MnA | |
A62Y-P31112V | ZG25 I | |
A62Y-P55140V，A62Y-P55170V，A42Y-P5526V | ZG15Cr1Mo1V | 20Cr1Mo1V1 | |
A42Y-P4545，A42Y-P3326.5 | ZG25 I | |
A42Y弹簧蝶形式安全阀(A42Y-A62Y)外形尺寸和连接尺寸 |
Type | Diameter
DN(mm) | Dimensions(mm) |
Do | D | D1 | D2 | D3 | D6 | b | Z- d | H1 | H2 |
A62Y-P54100V | 70/80 | 70 | - | - | 88 | 150 | - | - | - | 1,575 | 347 |
A62Y-P31112 | 70/80 | 70 | - | - | 88 | 150 | - | - | - | 1,575 | 347 |
A62Y-P55140V | 70/80 | 70 | - | - | 89 | 170 | - | - | - | 1,644 | 375 |
A42Y-P55170V | 75/100 | 75 | - | - | 100 | 190 | - | - | - | 1,705 | 380 |
A42Y-P5526V | 110/150 | 110 | 350 | 290 | - | - | 204 | 46 | 12-34 | 2,067 | 480 |
A42Y-P4545 | 110/150 | 110 | 350 | 290 | - | - | 204 | 46 | 12-34 | 2,070 | 480 |
A42Y-P3326.5 | 110/150 | 110 | 350 | 290 | - | - | 204 | 46 | 12-34 | 2,067 | 480 |
