LAD's Company's vertical rubber-lined check valve is designed for installation in horizontal pipelines. The valve body has a swing-type carbon steel riveted structure. The valve disc relies on the pressure of the medium in the designated flow direction to facilitate normal operation during opening. When closing, the reverse flow pressure tightens the valve disc against the valve body's sealing surface, preventing slurry backflow. Proper directional installation is crucial since it cannot be installed in reverse. The selected model must meet the pipeline's working pressure requirements. The valve body's internal rubber lining uses specialized rubber from LAD Company, known for its high wear resistance, corrosion protection, repairable lining layer, and low maintenance costs.