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!
Control Devices
Fenton, MO | 800-233-1477Our team at Control Devices believes that all of our customers should receive products that exceed their expecations. That’s why we design and produce our check valves using the highest quality materials. We will work with each customer to help find a lasting solution. Our company is ISO 9001:2015 certified. Contact Control Devices today to learn more!
Valve Check, Inc.
Maplewood, MN | 651-330-3437When it comes to ball valves, you can count on Valve Check to manufacture ball valves and relief valves! Our valves can operate up to 10,000 PSI, and can be made from such materials as brass, aluminum, steel and stainless steel. Many standards and configurations available! For more information, call us today! We look forward to working with you!
Waterman Valve
Exeter, CA | 800-331-0808We have been offering irrigation solutions since 1912. Waterman serves the wastewater industry by manufacturing control gates, butterfly valves, stainless steel butterfly valves, 3" - 12" round butterfly valves, 4" - 12" wafer butterfly valves and other irrigation equipment. For more information, contact GNI Waterman and a representative will be happy to assist you.
Generant
Butler, NJ | 973-838-6500Manufacturing standard or custom check valves, pressure relief valves, needle valves, control valves, pressure regulators and instrument-quality tube fittings plus other flow and pressure control products is our business. Generant is ISO 9001:2000 certified. We have been in business for 75+ years.
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.