帶扳手彈簧全啟式安全閥適用范圍
A48Y型安全閥適用于工作溫度≤350℃的蒸汽、空氣等介質的設備和管路上，A44Y適用于工作溫度≤300℃的空氣、石油等介質的設備和管路上作為超壓保護裝置，連接法蘭標準按PN<6.4MPa按JB/T-94系列1標準,PN≥6.4MPa按JB/T-94系列2標準。
帶扳手彈簧全啟式安全閥產品型號 Type of the products
| A48Y-16C | A44Y-16C | A44Y-16P | A44Y-16R |
| A48Y-25 | A44Y-25 | A44Y-25P | A44Y-25R |
| A48Y-40 | A44Y-40 | A44Y-40P | A44Y-40R |
| A48Y-64 | A44Y-64 | A44Y-64P | A44Y-64R |
| A48Y-100 | A44Y-100 | A44Y-100P | A44Y-100R |
主要零部件材料 Meterial for main parts
| 序號No. | 零件名稱 Name of part | A48Y-C A44Y-C材料 Materials | A44Y-P 材料 Materials | A44Y- R 材料 Materials |
| 1 | 閥體 Body | WCB | ZG1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 2 | 閥座 Nozzle | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 3 | 調節(jié)圈 Adjusting ring | ZG2Cr13 | ZG1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | 反沖盤 Disc holde | ZG2Cr13 | ZG1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | 閥瓣 Disc | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 6 | 導向套 Guide sleeve | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 7 | 閥蓋 Bonnet | ZG230-450 | ZG230-450 | ZG230-450 |
| 8 | 彈簧 Spring | 50CrVA | 50CrVA包覆氟塑料 Coated Teflon | 50CrVA包覆氟塑料 Coated Teflon |
| 9 | 閥桿 Stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
| 10 | 扳手 Lever | ZG200-400 | ZG200-400 | ZG200-400 |
| 11 | 調整螺桿 Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
| 12 | 保護罩 Cap | ZG200-400 | ZG200-400 | 316 |
| 密封面材料 Sealing surface of material | 堆焊Co基硬質合金Depositing slite | |||
環(huán)保在線