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The image shows three different types of stainless steel check valves used to prevent fluid backflow.⚙️ Component AnalysisTop Left: Spring Inline Check ValveRating: Marked 1000 WOG (high-pressure safe up to 1000 PSI).Mechanism: Uses an internal spring-loaded mechanism to seal against reverse flow.Benefit: Can be installed in any orientation (vertical or horizontal).Bottom: 1“ Swing Check ValveMarkings: 1” CF8M 200 (1-inch size, 316 Stainless Steel, 200 PSI rating).Mechanism: Operates via a swinging gravity disc that closes when flow stops.Benefit: Low pressure drop, best suited for horizontal pipelines.Top Right: Wafer Check ValveDesign: A slim, circular disc style wrapped in protective plastic.Mechanism: Features a spring-assisted center plate assembly.Benefit: Sandwiches between pipe flanges to save massive line space.Are you looking to compare the cracking pressure differences between these models, or do you need help determining which one is safest for a vertical pipeline installation?