A check valve allows fluid flow in one direction (forward) and prevents it in another. They are employed extensively in industrial and commercial piping systems to prevent the reverse flow of a fluid that would produce an undesirable effect. Numerous sizes and types are available to meet specific application challenges. Each check valve type must be properly selected to accommodate the pressure (like water hammer), temperature, and flow characteristics of each system. Proper materials for construction must be selected to provide suitable service with the process media.
Check valves are commonly applied to protect pumps from any induced reverse flow in a system. They can also be found in combination with other valves, providing assurance that the process fluid flows only in one direction. Swing check valves are types of check valve that use the directional flow to push open a swinging disk. This disk will stay raised while flow continues and will re-seat itself when flow stops, preventing reverse flow. The swing check valve seating increases as reverse flow pressure increases.
One manufacturer, Titan Flow Control, incorporates a number of features into a single unit to provide wide-ranging applications. Features of the check valve are detailed below, along with a data sheet with more technical information. You can always get the latest available product data and solid application assistance from the process control specialists at MSEC. Combining your process knowledge with your product application expertise will yield a positive outcome.