详细说明
产品名称:DTA27H/Y/F弹簧微启式安全阀
使用工况:
DTA27H型适用于工作温度≤200℃的水、空气、蒸气等介质的设备或管路上。DTA27Y适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。
产品特点:
1、带提升扳手可定期检验阀门开启的灵活性
2、整定压力偏差小，可达±3%
3、启闭压差≤15%
4、选用优质的弹簧钢，保证弹簧的寿命和稳定性
5、平面结构的阀瓣和阀座易于维修和重新加工
主要零部件材料:
| NO. | Name of part | DTA27H Materials | DTA27W-P Materials | DTA27W-R Materials |
| 1 | Body | HT350 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 2 | Nozzle | 35 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 3 | Adjusting ring | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | Disc | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon |
| 6 | Stem | 2Cr13 | 2Cr13 | 1Cr18Ni9Ti |
| 7 | Adjusting bolt | 45 | 2Cr13 | 1Cr18Ni9Ti |
| 8 | Cap | ZG200-400 | ZG200-400 | 1Cr18Ni9Ti |
| 9 | Sealing surface of material | D507 Depositing D507 | Co Depositing stellite |
| 10 | Adjusting nut | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
| Sealing surface of material | "Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body |
外形尺寸:
| Nominal diameter公称通径DN (mm) | Dimensions 尺寸(mm) |
| do | Rc | L | L1 | G | H |
| 15 | 10 | 1/2" | 40 | 65 | 1/2" | 135 |
| 20 | 15 | 3/4" | 45 | 70 | 3/4" | 140 |
| 25 | 20 | 1" | 45 | 76 | 1" | 155 |
| 32 | 25 | 11/ " | 55 | 85 | 11/ " | 170 |
| 40 | 32 | 11/ " | 55 | 85 | 11/ " | 310 |
| 50 | 40 | 2" | 67 | 100 | 2" | 322 |
| 65 | 50 | 21/ " | 76 | 112 | 21/ " | 344 |
| 80 | 65 | 3" | 110 | 135 | 3" | 395 |