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Check valves are mechanical valves that permit gases and liquids to flow in only one direction, preventing flow from reversing. They are classified as one-way directional valves. Fluid/gas flow in the desired direction opens the valve, while backflow forces the valve closed<br><br>

1/2 In. 316 Stainless Steel Swing Check Valve - 200 PSI

1-2-in-316-stainless-steel-swing-check-valve-200-psi

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