| 系列 Series |
| A38Y-16C/25/40 A43H-16C/25/40 A37H-16C/25/40 |
| 本阀门适用于工作温度≤350℃的蒸汽、水等介质的设备和管路上。作为超压保护装置。连接法兰标准按JB/T……-94的系列1。 |
This safety valves are used for the equipment and pipeline of the steam, water etc. medium what the working
temperature are less than 350 . Take for extra pressure protection devices.Flange connecting dimensions of comply with Standard series one of JB/T -94. |
| 主要零部件材料 Explanation of materials for main parts |
| A38Y, A43H, A37H safety valve, except the three-ways style （material WCB）, the materials of other parts is the same as A47H, A48Y type spring loaded type safety valve. |
A38Y A38Y Type
（DN） | A48Y Relevant A48Y Type
（DN） | | A43Y A43Y Type
（DN） | A47Y Relevant A47Y Type
（DN） | | A37Y A37Y Type
（DN） | A47Y Relevant A47Y Type
（DN） |
| 50 | 322 | | 50 | 322 | | 50 | 322 |
| 80 | 502 | | 80 | 502 | | 80 | 652 |
| 100 | 652 | | 100 | 802 | | 100 | 802 |
| 150 | 1002 | | 125 | 1002 | | 125 | 1002 |
| | | | 150 | 1252 | | 150 | 1252 |
