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标题:WINDMILL steel gate valve
正文:
WINDMILL steel gate valveSteel gate valveDesign and Manufacture: Cast steel gate valve to API 600 (ISO 10434) or API 6D; Cast stainless steel gate valve to API 603 or API 600; Forge steel gate valve to API 602. Inspection and Test: API 598, API 600 or API 6D.End flange dimension: ASME B 16.5 ( for NPS≤24）； ASME B 16.47 series B、API605 or ASME B 16.47 series A、MSS SP-44(for NPS＞24).BW end dimension: ASME B 16.25.Socket-weld dimension: ASME B 16.11.Face to face and end to end:ASME B 16.10.Pressure-temperature ratings:ASME B 16.34.Packing SealMolded flexible graPhite is used for Packing material PTFE or combined Packing material can be al so used if being requested by the customer. The inte rnal surface of the stuffing box, of which area is contacted with the Packing, is of excellent finish (Ra3.2um). The stem surface, contacting With the Packing should be rolled and Pressed after being P recisely machined, so as to reach to thehigh finish and comPactness (Ra0.8um) and ensure the relia
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