A swing check valve allows forward flow and blocks the reverse flow. It provides a strong option for uni-directional homogenous flow applications. In this article, you will review a swing check valve diagram, operating principles, types, k-values, installation concerns, and applications. The swing check valve consists of a valve body, seat, and disc linked to the hinge. Upon encountering a specified flow rate, the disc rotates to a horizontal position, enabling forward flow. It returns to the valve seat when the flow stops to prevent backflow. The swing check valve’s disc and the rocker connect, allowing them to revolve at an angle around the pin shaft. When input pressure to the disc exceeds resistance pressure, fluid flows in the prescribed direction. While the valve opens, the disc separates from its seat and rotates around the pin to a fully open position. here are several major types of swing check valves. Broadly grouped, these can be categorized as top-hinged and tilting disc. Each deploy similar operating procedures with the main difference being the way the valve disc is deployed.
