Pressure VesselChina Stainless Steel CF8/CF8m Cast Ductile Iron Wafer Type Duplex Butterfly Double Door Disc Dual Plate/Flap/ Swing Check Valve Pn10/Pn16 or 10K/16K Class150 150lb, Find details about China Dual Plate Check Valve, Wafer Type Check Valve from Stainless Steel CF8/CF8m Cast Ductile Iron Wafer Type Duplex Butterfly Double Door Disc Dual Plate/Flap/ Swing Check Valve Pn10/Pn16 or 10K/16K Class150 150lb