| GA42H-16C/25/40 GA42H-100 |
| GA42H型安全阀适用于温度≤450℃的电站锅炉和压力容器上，防止压力超过允许最高值，介质可为蒸汽、空气。 |
| GA42H type safety valve is applicable to the power-station boiler and pressure container ( The working temperature is 450 or less. ) which will avoid the pressure rate beyond the allowed upper limit. The medium can be steam or air. |
| 主要零部件材料 Materials for main parts |
| NO. | Name of part | 材料 Materials |
| 1 | Body | 碳钢 Carbon steel |
| 2 | Guide sleeve | 不锈钢 Stainless steel |
| 3 | Disc | 2Cr13 |
| 4 | Stem | 2Cr13 |
| 5 | Lever | 碳钢 Carbon steel |
| 6 | Hammer | 铸铁 Cast iron |