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Stainless Steel Wafer Type Single Plate Swing Check Valve.🔍 Technical Markings Breakdown150 MM: Indicates a nominal pipe connection diameter of 150 millimeters (equivalent to a 6-inch pipeline).CF8: Confirms the disc and body structure are cast from 304 Stainless Steel, which provides strong general-purpose protection against water scaling, oxidation, and atmospheric corrosion.⚙️ How It WorksWafer Design: The ultra-slim, lightweight body has no flanges of its own. It is designed to be sandwiched tightly between two standard pipeline flanges using long, continuous stud bolts.Automatic Operation: Forward fluid pressure pushes the top-hinged circular plate forward to clear the flow path. When the pump stops or the flow begins to reverse, gravity and backpressure instantly slam the plate shut against the body seat, preventing reverse flow.Eyebolt Hook: The top metal loop allows rigging equipment to lift and align this heavy industrial valve safely into position between pipe flanges during installation.💡 Installation RequirementsHorizontal Lines: The valve must be oriented with its top hinge pin perfectly horizontal so the internal disc swings downward properly under gravity.Vertical Lines: This valve can only be installed in a vertical run if the fluid flow travels upward, allowing forward pressure to lift the disc and gravity to seal it closed.If you are setting this up, let me know:What flange standard are you using (e.g., ANSI Class 150, PN16, or JIS)?What gasket material will be used on either side of the valve face?Is your pipeline handling a clean liquid, or are there solid particles present