大口徑安全閥用途
A48Y型帶扳手彈簧全啟式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型帶扳手彈簧全啟式安全閥適用于工作溫度≤300℃的空氣、石油 等介質的設備和管路上，作為超壓保護裝置。產品連接法蘭標準PN<6.4MPa按JB/和T-94系列1.2標準。PN≥6.4MPa按JB/和T-94系列2標準
主要外形連接尺寸
| 公稱通徑 Nominal diameter DN(mm) |
尺寸 Dimensions (mm) | ||||||||
| DO | L | L1 | DN’ | ||||||
| 25 | 15 | 110 | 105 | 32 | |||||
| 32 | 20 | 130 | 110 | 40 | |||||
| 40 | 25 | 135 | 120 | 50 | |||||
| 50 | 32 | 160 | 130 | 65 | |||||
| 80 | 50 | 175 | 160 | 100 | |||||
| 100 | 65 | 220 | 200 | 125 | |||||
| 150 | 100 | 285 | 260 | 200 | |||||
| 公稱壓力 Nominal pressure PN(MPa) |
公稱通徑 Nominal diameter DN(mm) |
尺寸 Dimensions (mm) | |||||||
| L | L1 | DO | DN’ | ||||||
| (A44Y) 1.6 2.5 4.0 |
25 | 110 | 95 | 15 | 32 | ||||
| 32 | 115 | 100 | 20 | 40 | |||||
| 40 | 120 | 110 | 25 | 50 | |||||
| 50 | 135 | 120 | 32 | 65 | |||||
| 65 | 160 | 135 | 40 | 80 | |||||
| 80 | 170 | 135 | 50 | 100 | |||||
| 100 | 195 | 175 | 65 | 125 | |||||
| 150 | 255 | 230 | 100 | 175 | |||||
| (A44Y) 6.4 10.0 |
25 | 110 | 105 | 15 | 32 | ||||
| 32 | 130 | 110 | 20 | 40 | |||||
| 40 | 135 | 120 | 25 | 50 | |||||
| 50 | 160 | 130 | 32 | 65 | |||||
| 80 | 175 | 160 | 50 | 100 | |||||
| 100 | 220 | 200 | 65 | 125 | |||||
| 150 | 285 | 260 | 100 | 200 | |||||
主要零件材料
| NO | 零件名稱 Name of part |
A48Y-C A44Y-C A42Y-C 材料 Materials |
A44Y-P A42Y-P 材料 Materials |
A44Y-R A42Y-R 材料 Materials |
| 1 | 閥 體 Body | WCB | ZG1Cr18Ni9Ti | CF8M |
| 2 | 閥 座 Nozzle | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 3 | 調節圈 Adjusting ring | ZG2Cr13 | ZG1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
| 4 | 反沖盤 Disc holder | ZG2Cr13 | ZG1Cr18Ni9Ti | 316 |
| 5 | 閥瓣 Disc | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 6 | 導向套 Guide sleeve | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
| 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 | 1Cr18Ni12Mo2Ti |
| 10 | 扳 手 Lever | ZG200-400 | ZG200-400 | ZG200-400 |
| 11 | 調整螺桿Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
| 12 | 保護 Cap | ZG200-400 | ZG200-400 | 316 |
| 密封面材料Sealing surface of material | 堆焊Co基硬質合金 Depositing stellite | |||
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