Dual plate wafer check valve with rubber seat can be made of various materials such as cast iron, ductile iron, WCB, CF8,CF8M, 
CF3, CF3M, Aluminium bronze… for various mediums. 
BODY:CI, DI, WCB, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, C95400, C95800, SAF2205, SAF2507, F51, 1.4529
SEAT:BUNA-N, NBR, EPDM, HYPALON, NEOPRENE, VITON, FKM, NATURAL RUBBER
DISC:CF8, 304, CF3, 304L CF8M, 316, CF3M, 316L, SAF2205, SAF2507, F51, 
        1.4529, C95400, C95500, C95800, MONEL
Pin:F410, F420, F430, F431, F304, F316, MONEL 400, MONEL K500

Design:API 594\BS5155\EN593\GB/T12238
Flange End:ASME B16.1 CLASS 125\ASME B16.5 CLASS 150\ASME B16.47\BS EN 1092 PN6/PN10/PN16\
                JIS B 2220 5K/10K/16K\BS 10 Table D/Table E
Inspection:API598\EN12266-1\ISO5208
Size Range:DN50-DN1200/2”-48”
Temperature:-40℃ to +200℃ (Depending on pressure, medium and material)
Medium:freshwater\ sewage\seawater\air\vapor\food\oils\medicine\ alcohol\salt