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Coosai check valves is used in class 150ⅵclass 2500, NPS ⅵNPS 48, working temperature -196∩ⅵ540∩ many kinds of pipelines, which can prevent the refluence of medium. And can be applicable to water, steam, oil and so on. Via choosing different types of materials. Main materials: WCB, low temperature steel, dual phase steel(F51F5), Titanium alloy, Aluminum bronze, INCONEL, SS304, 304L, 316, 316L, chrome-molybdenum steel, Monel (400/500), 20#alloy, Hayne’s alloy etc. design standard：API594，API6D，BS1868 Face to face: API594，API6D，ASME 16.10 . Grade of pressure-temperature: ASNI 16.34 Test &inspection: API6D，API598 Flange: ASME 16.5， API605， ASME B 16.47 |