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ANA42F内装式安全阀主要用于铁路和汽车石油液化气槽车或地面液化气储罐上，作为设备的超压安全保护装置。
| 主要零部件材料 Materials for main parts | |||
| Name of parts | Body, Bonnet | Nozzle, disc | Spring |
| Materials | WCB | 2Cr13 | 50CrVA |
| 外形尺寸和连接尺寸 Dimensions (mm) | ||
| NO. | Name of part | Materials |
| 1 | Disc | Carbon Steel |
| 2 | Sealing | PTFE |
| 3 | Body | Carbon Steel |
| 4 | Stem | 1Cr18Ni9Ti |
| 5 | Nozzle | Carbon Steel |
| 6 | Yoke | Carbon Steel |
