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Low Pressure Check Valve Manufacturer

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. ANSI dual plate wafer check valves, (which conform to ANSI / API specifications), and Silent Check Valves are the only check valves that do not come with our low ∆P elastomer design. These valves are suitable for any orientation including vertical up flow and downflow. Click on the valve categories below to learn more. We are a proud low pressure check valve manufacturer as well as a manufacturer of Techno™ Check Valves. Click on the link on the right side of the page to link to our Techno™ Check Valves.

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Frequently Asked Questions

1. What is a check valve used for? A check valve is a one-way valve that prevents backflow.

2. When should check valves be used? When two or more pumps or blowers are installed in parallel, check valves are used to isolate the ones that are not operating. In some applications, backflow is detrimental to the process or to equipment and must be prevented. 

3. How do check valves work? Check valves have a mechanism either spring-loaded or not spring-loaded whereby the valve automatically closes once the flow through it is reduced below a minimum amount.  When the flow increases again with stronger force, the valve will re-open and the media is once again able to pass through.

4. What are the types of check valves? There are a wide variety of types of check valves including elastomer hinge, double-disc, piston and ball check valves.  They are normally available in various body type including FNPT, MNPT, Flanged, Wafer, and Grooved End.

 

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