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!
EVR Products
Sudbury,ON | 800-461-6331We make our check valves to be wear resistant and able to withstand the elements in sewage, sludge and slurries plus hold up to pressure drop. Rubber and full-metal-body check valves are offered. Contact us about your process piping needs. EVR Products is an ISO 9001:2015-registered company.
HYDAC Technology Corporation
Bethlehem,PA | 610-266-0100HYDAC Technology is a manufacturer of a wide range of valve products to serve OEMs, manufacturers and end users. Some of our products include ball check valves, stainless steel check valves and relief valves. We have many standard products available for quick delivery at low prices.
Doering Company
Clear Lake,MN | 320-743-2276Doering manufactures valve and pump products for fluid power applications. Our valves include hydraulic flow control valves, gas valves, stainless steel hydraulic valves, hydraulic pressure control valves, hydraulic poppet valves and hydraulic spool valves. Download our product catalog from our site.
Pneumadyne, Inc.
Plymouth,MN | 763-559-0177Pneumadyne, Inc. is an ISO 9001:2015 certified manufacturer of pneumatic components and pneumatic control systems. Pneumadyne’s check valves feature a variety of port sizes including 1/16 tube id barbs, 10-32 and 1/8 NPT threads and ¼ push-in connections to fit plumbing requirements. Pilot operated solutions are also available to reliably hold an actuator position in a variety of applications.
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.