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. Read More…
Leading Manufacturers
Check-All Valve Manufacturing Company
W. Des Moines,IA | 515-224-2301Our check valves are manufactured with the customer in mind. We believe in offering superior products and services every time. No matter whether you are looking for small or large valves, we can meet your every needs. It is our goal to offer excellent prices and service to each customer. Contact us to learn more today!
Plast-O-Matic Valves, Inc.
Cedar Grove, NJ | 973-256-3000Offering a full line of flow control products, Plast-O-Matic Valves ensures high quality by testing each of our valve products individually before shipment. We offer plastic check valves, PVC check valves, relief valves, ball check valves and more. We are committed to engineering excellence.
Ross Controls®
Troy, MI | 248-764-1800In 1920, Ross produced its first pneumatic control valves. Today we still make pneumatic valves plus large-port, high-flow check valves, pilot-operated check valves, high-flow relief valves, high-pressure valves, double valves and controls systems, plus safety products applicable to the fluid power industry. We are ISO 9001:2008 certified. For more information, visit our website!
Swagelok Company
Solon, OH | 440-349-5934Swagelok is a leader in the development and manufacturing of high-quality valve products. We offer a broad line of adjustable and fixed cracking pressure check valves to control back flow in general-service and high-purity applications. Our associates are singularly focused on how they can improve our customers’ experience through innovative products and services.
Tideflex® Technologies, div. of Red Valve Company
Carnegie, PA | 412-279-0044We manufacture traditional check valve and aeration products including all rubber check valves (outfall and specialty check valves) and inline check valves (housed inline, insertable inline and specialty inline). Our knowledgeable staff is ready and willing to help you find the products you need.
Ball Check Valve - Check-All Valve Manufacturing CompanyWhen 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.