品牌
生产厂家厂商性质
上海市所在地
产品概述：A48Y弹簧全启式安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上作为超压保护装置。弹簧全启式安全阀具有结构简单、密封性能好、开启压力准确、排放能力大、回座压差小调整方便等特点。
A48Y弹簧全启式安全阀技术参数：
| 带扳手弹簧全启式安全阀主要零部件材料 Materials for main parts | ||||
| NO. | Name of part | A48Y-C A44Y-C 材料 Materials | A44Y-P 材料 Materials | A44Y-R 材料 Materials |
| 1 | 阀 体Body | WCB | ZG1Cr18Ni9Ti | CF8M |
| 2 | 阀 座Nozzle | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 3 | 调 节 圈 Adjusting ring | ZG2Cr13 | ZG1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
| 4 | 反 冲 盘 Disc holder | ZG2Cr13 | ZG1Cr18Ni9Ti | 316 |
| 5 | 阀 瓣Disc | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 6 | 导 向 套Guide sleeve | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
| 7 | 阀 盖Bonnet | ZG230-450 | ZG230-450 | ZG230-450 |
| 8 | 弹 簧 Spring | 50CrVA | 50CrVA包覆氟塑料 Coated Teflon | 50CrVA包覆氟塑料 Coated Teflon |
| 9 | 阀 杆Stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 10 | 扳 手Lever | ZG200-400 | ZG200-400 | ZG200-400 |
| 11 | 调整螺杆Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
| 12 | 保 护 罩Cap | ZG200-400 | ZG200-400 | 316 |
|
| 密封面材料 Sealing surface of material | 堆焊Co基硬质合金 Depositing slite | ||
A48Y弹簧全启式安全阀外形尺寸和连接尺寸
| Type | （DN） | do | D | K | g | g1 | b | f | f1 | Z- d | DN' | D1 | k1 | g3 | g2 | b1 | f' | f1' | Z1- d1 | L | L1 | H |
| A48Y | 20 | 15 | 105 | 75 | | 55 | 16 | 2 | | 4-14 | 25 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 110 | 95 | 411 |
| 25 | 16 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 32 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 110 | 95 | 411 | |
| 32 | 20 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 40 | 150 | 110 | | 85 | 18 | 3 | | 4-18 | 115 | 100 | 411 | |
| 40 | 25 | 150 | 110 | | 85 | 18 | 3 | | 4-18 | 50 | 165 | 125 | | 100 | 20 | 3 | | 4-18 | 120 | 110 | 472 | |
| 50 | 32 | 165 | 125 | | 100 | 20 | 3 | | 4-18 | 65 | 185 | 145 | | 120 | 20 | 3 | | 4-18 | 135 | 120 | 532 | |
| 65 | 40 | 185 | 145 | | 120 | 20 | 3 | | 4-18 | 80 | 200 | 160 | | 135 | 20 | 3 | | 8-18 | 160 | 140 | 556 | |
| 80 | 50 | 200 | 160 | | 135 | 20 | 3 | | 8-18 | 100 | 220 | 180 | | 155 | 22 | 3 | | 8-18 | 170 | 135 | 561 | |
| 100 | 65 | 220 | 180 | | 155 | 20 | 3 | | 8-18 | 125 | 250 | 210 | | 185 | 22 | 3 | | 8-18 | 195 | 175 | 667 | |
| 125 | 80 | 250 | 210 | | 185 | 22 | 3 | | 8-18 | 150 | 285 | 240 | | 210 | 24 | 3 | | 8-23 | 210 | 190 | 857 | |
| 150 | 100 | 285 | 240 | | 210 | 24 | 3 | | 8-23 | 175 | 310 | 270 | | 240 | 26 | 3 | | 8-23 | 255 | 230 | 915 | |
| 200 | 125 | 340 | 295 | | 265 | 26 | 3 | | 12-23 | 250 | 405 | 355 | | 320 | 30 | 3 | | 12-26 | 300 | 260 | 1,073 | |
| 250 | 150 | 405 | 355 | | 320 | 30 | 3 | | 12-26 | 300 | 460 | 410 | | 375 | 30 | 4 | | 12-26 | 350 | 320 | 1,307 | |
| 300 | 220 | 460 | 410 | | 375 | 30 | 4 | | 12-26 | 400 | 580 | 525 | | 485 | 36 | 4 | | 16-30 | 370 | 350 | 1,233 | |
| 350 | 250 | 520 | 470 | | 435 | 34 | 4 | | 16-26 | 500 | 715 | 650 | | 608 | 44 | 4 | | 20-34 | 500 | 450 | 1,711 | |
| 400 | 280 | 580 | 525 | | 485 | 36 | 4 | | 16-30 | 500 | 715 | 650 | | 608 | 44 | 4 | | 20-34 | 500 | 450 | 1,780 |
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