A42Y美标普通式安全阀流道N
| 材料b | 阀门
规格 | ASME
法兰磅级 | 最高设定压力 a (MPa) | 最高出口压力 MPa | 面心距(in.) | 面心距(mm) |
| LB | LB | 常规式和波纹管式阀门 | 常规式阀门 | 波纹管式阀门 | 进口 | 出口 | 进口 | 出口 |
| 阀体/阀盖 | 进口x流道x出口 | 进口 | 出口 | -268～-60℃ | -59～29℃ | -29～38℃ | 232℃ | 427℃ | 538℃ | 38℃ | 38℃ | | | | |
| 温度范围-29～427℃ | | |
| 碳钢Carbon Steel | 4N6 | 150 | 150 | | | 1.96 | 1.28 | 0.55 | | 1.96 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6c | 300 | 150 | | | (1.96) | (1.96) | (1.96) | | 1.96 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 300 | 150 | | | 5.10 | 4.27 | 2.83 | | 1.96 | 1.10 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 600 | 150 | | | (6.89) | (6.89) | 5.69 | | 1.96 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 4N6 | 900 | 150 | | | (6.89) | (6.89) | (6.89) | | 1.96 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 温度范围428～538℃ | | |
| 铬钼钢Chrome Molybdenum Steel | 4N6 | 300 | 150 | | | | | 3.52 | 1.48 | 2.00 | 1.10 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 600 | 150 | | | | | (6.89) | 2.96 | 2.00 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 4N6 | 900 | 150 | | | | | (6.89) | 4.48 | 2.00 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 温度范围-268～538℃ | | |
| 奥氏体不锈钢Austenitic Stainless Steel | 4N6 | 150 | 150 | 1.90 | 1.90 | 1.90 | 1.24 | 0.55 | 0.14 | 1.90 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6c | 300 | 150 | (1.90) | (1.90) | (1.90) | (1.90) | (1.90) | (1.90) | 1.90 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 300 | 150 | (3.10) | 4.96 | 4.96 | 3.41 | 2.90 | 2.52 | 1.90 | 1.10 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 600 | 150 | (3.45) | (6.89) | (6.89) | 6.83 | 5.83 | 5.00 | 1.90 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 温度范围-29～482℃ d | | |
| 镍/铜合金Nickel/Copper Alloy d | 4N6 | 150 | 150 | | | 1.59 | 1.21 | 0.55 | 0.34 | 1.59 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6c | 300 | 150 | | | (1.59) | (1.59) | (1.59) | (1.59) | 1.59 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 300 | 150 | | | 4.14 | 3.27 | 3.17 | 1.90 | 1.59 | 1.10 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 600 | 150 | | | (6.89) | 6.52 | 6.31 | 3.79 | 1.59 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 4N6 | 900 | 150 | | | (6.89) | (6.89) | (6.89) | 5.69 | 1.59 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 温度范围-29～149℃ e | | |
| 20合金钢Alloy 20 e | 4N6 | 150 | 150 | | | 1.59 | 1.24 | | | 1.59 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6c | 300 | 150 | | | (1.59) | (1.24) | | | 1.59 | 0.55 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 300 | 150 | | | 4.14 | 3.21 | | | 1.59 | 1.10 | 7.75 | 8.25 | 197 | 210 |
| 4N6 | 600 | 150 | | | (6.89) | 6.41 | | | 1.59 | 1.10 | 7.75 | 8.75 | 197 | 222 |
| 4N6 | 900 | 150 | | | (6.89) | (6.89) | | | 1.59 | 1.10 | 7.75 | 8.75 | 197 | 222 |
Inlet and outlet flange pressure limits correspond to the values in ASME B16.34 unless enclosed in parentheses.
进出口法兰压力限制，除了括号里边的，其它的可以按ASME B16.34的标准执行。
