Executive standard: 1. Design and manufacture: Q/ZXD 03-1999 GB/T12238-89 API 609 MSS JIS SP-67 standard. 2. Flange size: PNu003d1.0MPa according to JB/T82.1-94 (or original standard JB82-59) 'raised-face welded steel pipe flange'. PNu003d1.6MPa according to GB9113.3-88 'Raised Surface Integral Steel Pipe Flange'. PNu003d2.5MPa according to GB9113.4-88 'Raised Surface Integral Steel Pipe Flange'. 3. The length of the structure is specified in GB12221-89 'Structural Length of Flanged Metal Valves'. 4. Inspection and test shall be in accordance with GB/T13927-92 'General Valve Pressure Test'. Driving mode: manual fluorine-lined wafer butterfly valve
has simple structure, small volume and light weight, and is composed of only a few parts. Moreover, the manual fluorine-lined wafer butterfly valve adopts the lever principle, which can be opened and closed quickly by only rotating 90°, and the operation is simple. At the same time, the valve has good fluid control characteristics.
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