Product
Hard sealed telescopic butterfly valve
Brand：Yibiao 型號：YSD343H
Standard specification for hard sealed telescopic butterfly valves:
Design and Manufacturing Standards: GB/T 12238-2008, JB/T 8527-1997
Structural length standard: GB/T 12221-2005
Connection flange standard: GB/T 9113
Pressure and temperature rating: GB/T 12224-2005
Test and Inspection Standard: GB/T 13927-2008
零件材料與工況：
| 零件名稱 | 材料 |
| 閥體 | WCB、QT450-10、不銹鋼 |
| 蝶板 | WCB、QT450-10、不銹鋼 |
| 閥軸 | 2Cr13不銹鋼 |
| 密封圈 | 橡膠 |
| 填料 | 柔性石墨 |
【Bace】
