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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(zhì)的設備和管路上，a44y適用于工作溫度≤300℃的空氣、石油等介質(zhì)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(chǎn)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 |
帶扳手彈簧全啟式安全閥主要零部件材料 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(diào)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(diào)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(zhì)合金depositing stellite | |||
