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Check valves have a disc, ball, or plates that open when for flow starts in the pipeline. When pressure drops, either gravity, back pressure, or a mechanical spring forces the disc back against its seat to prevent reversal of flow (backflow). Select check valve type based on process application requirements, installation, and ease of maintenance.

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Apollo Check Valve

Apollo Check Valves
The Apollo Ball Cone Check Valve offers reliable protection against reverse flow and exceptional resistance to chemicals and corrosion using proven ASTM quality materials made in the USA. Spring-loaded RPTFE ball cone and 316SS spring are standard. NPT Threaded Ends. Available in 1/4" through 3" Sizes.

US Valve Check Valves
SelectUS Valve

US Valve Check Valves
US Valve supplies check valves in a wide variety of configurations and materials. We are known for our unique Elastomer Design, which provides the lowest pressure drop and highest Cv in the industry. This design is available on all our Full Port check valves. Large selection of Threaded, Wafer, and Flanged End Check Valves - In stock.

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