Spring-Loaded Check Valve

It begins to operate when flow starts in the pipeline, opening the disc as it moves in the direction of flow. The disc is designed to allow full passage. Should flow cease in the pipeline, it closes to prevent reverse flow. Sealing is achieved by the disc seating against the metal seat surface. Sealing can be achieved either by metal-to-metal contact or using a sealing gasket, depending on the application. If required, the valve disc can be coated with rubber to ensure sealing. It can also be manufactured with a counterweight to provide flow control. It is suitable for use in vertical pipelines. Maintenance and repair are very straightforward. When the top cover bolts are removed, the valve and connection mechanism can be removed. It provides full sealing at low pressures. During installation, the valve must be fitted to the pipeline in accordance with the arrow marking on the valve.