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Ball Check Valve

A ball check valve is a type of valve in which the movable part is a spherical ball. Like all check valves, these mechanisms are carefully manufactured to prevent backflow that might otherwise produce cross-contamination, pressure surges or damaging flooding, all of which could cause system failure or decreased productivity.

  • W. Des Moines, IA 515-224-2301

    It is our goal to offer a variety of services and products to our companies. Whether you want individual attention or superior service, we can offer both. We only manufacture check valves, and we are true experts in our field. From our ball check valve designs to our innovative wafer valves, you will find we know everything there is to know about valves! Contact us for additional details today!

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  • Monroe, CT 800-533-3285

    We are a check valve manufacturer producing ball check valves, miniature check valves and stainless check valves. O'Keefe Controls will create a product for your special requirements and provide you with extensive engineering support. We offer a variety of precision orifices.

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  • Ft. Wayne, IN 260-482-4366

    For over 75 years, we have been producing the quality parts you rely upon. Our valves and fittings are available in brass, stainless steel, carbon steel, titanium and other materials as well as in many different sizes. Whether its pipe fittings, check valves, quick connectors or manifolds you need, Strataflo has your solution.

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  • Somers, CT 860-749-0761

    For years, Conval has been manufacturing high quality ball check valves for use in aerospace hydraulic systems, oil tools, medical and scientific instrumentation and other industries worldwide. If you have questions or would like to discuss a specific application, give one of our representatives a call or visit our website for more information.

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  • Philadelphia, PA 888-386-8830

    Known worldwide for our O-Seal System of high pressure check valves, we are a manufacturer of precision engineered valves since 1915. Our leak proof reliability of our fluid-line relief valves is easily installed. We offer shutoff, needle, check and stop-check valves rated to 6,000 psi.

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  • Clemmons, NC 888-429-4635

    In plastics for over 40 years, Hayward is a leading manufacturer of PVC, CPVC and PPL check valves including ball checks, swing checks, wafer checks and Y-pattern checks. Numerous options are available. Industries served include water and wastewater treatment and chemical processing.

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  • Memphis, TN 866-300-0110

    Valves are an important part of many flow systems and pneumatic systems. That’s why at Davis Valve, we make only the highest quality ball valves and other components for our customers. We stock many other parts including gates, swing checks, plug valves, and more. We work our hardest to provide excellent customer service. Find out more when you contact us today! [keyword] in [city], [state], [country].

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  • Skokie, IL 800-532-5539

    It is our goal at the Keckley Company to meet all of our customers’ needs by offering superior check valves, a wide range of accessories, and sticking to old-fashioned customer service values. Keckley has experience serving industries such as bottling companies, airports, and steel mills. We believe that no matter what type of check valve that you purchase, you should get the highest quality. Find out more by contacting us today or visiting our website online!

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businessIndustry Information

Ball Check Valves

The basics of check valve installation, whose characteristics ball check valves share, involve a disc, ball or cone-like plug to rest on the seat or passageway in the cross section of the valve, blocking the flow of materials. When fluid, gas or fluid with suspended solids flows at the optimal pressure or higher in the pre-determined acceptable direction, it pushes the plug away from the seat. This creates a gap through which the process stream may flow. When this forward flowing pressure drops and downstream pressure reaches the valve, the disc, cone or ball is quickly pressed back into place. A tight seal is created that prevents backwash. Ball check valves serve this purpose in a variety of forms, including free floating or spring-loaded balls. They are generally manufactured from simple, inexpensive metallic or plastic materials, although specialized ball check valves are also available. For example, ball check valves in high-pressure HPLC pumps used in analytical chemistry have a ball of synthetic ruby, a hard and chemically resistant substance. 

Ball check valves are used in spray devices, dispenser spigots, manual and other pumps and refillable dispensing syringes. Because they are durable, versatile, cheap and easy to use and repair, ball check valves are very common. They can be used as independent backflow preventatives or be part of a multi-plug product, like double check valve. Specialized plug systems, such as the pressure relief valve, may also include ball check valves. Even miniature check valves, which can be as small as a quarter of an inch, often use ball plugs. As with all valve genres, many industries utilize ball check valves, including water treatment, medical, food and chemical processing, petrochemical and agriculture. Although ball check valves are common, many considerations must still be kept in mind before purchase of it or any other type of check valve. Properly sized check valves are easily installed in pre-existing flow lines, using the dimensions of the pipe or tubing to determine the necessary size. But if the valve is too large or bulky, the pressure created by the process stream will not be able to open it, and an undersized apparatus will allow a continuous flow and never close. The materials of construction also impact the effectiveness of check valves. If incompatible materials are used, they will wear, erode or contaminate the process stream. However, with so many sizes and materials to choose from, proper research and preparation will guarantee a check valve that is appropriate.