Titanium Check Valve (1) Size: 2"-48" or DN50-DN1200 ... ,Design & Manufacture Std.: API594,ASME B16.34, API 6D, JISB2074-JISB2084,BS1868 Face to Face Std.:ASMEB16 ... .10, API 6D, JISB2002,DIN3202,EN558 End Connection Std.: ASME ... 47, JISB2212-JISB2214, DIN2543-2550, Test Standard: API598,API 6D JISB2003Structure Type: Regular Pattern,Pressure Sealed Pattern,Damping ...