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design basis
1. The design of the valve shall comply with Q/320506 FDV01-20132: GB/T 12224-2005 "General Requirements for Steel Valves"
2. GB/T 12220-1989 "General Valve Marking"
3. GB/T 12223-2005 "Connection of Partial Rotary Valve Drive Devices"
4. JB/T 12006-2014 "Welded Ball Valves for Steel Pipes"
5. GB/T 37827-2019 "Welded Ball Valves for Urban Heating"
6. Flange surface standard: GB/T 9113
7. Flange end standard: GB/T 12221-2005
Product Parts List
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Next：Q61HF-20K CF8 fully welded reduced diameter ball valve with movable handle KIS standard
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Q61HF-20K CF8 fully welded reduced diameter ball valve with movable handle KIS standard
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