Detailed Product Description Single Disc Wafer Swing Check Valve Features:Sizes 1/2"-60"; ... :Face to Face or End to End: API594&API6D&DIN3202Pressure temperature ratings: ASME B16.34 & DIN2401Flange dimension(RF): ANSI B16.5Inspection ... ,WC6,WC9,C5,C12,C12A,F11,F22,F5,F9,F91Low Temperature Steel: ASTM A351 LCA,LCB,LCC,LC1,LC2,LC3