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Matters Need to Pay Attention 1. Do not allow the check valve to bear weight in the pipeline. The large check valve should be independently supported so as not to be affected by the pressure generated by the piping system. 2. Pay attention to the direction of media flow during installation, which should be consistent with the direction of the arrow marked on the valve body. The H14W check valve is designed to prevent backflow of media in the line. The check valve is an automatic valve type, and the opening and closing member is automatically opened or closed by the force of the flowing medium. The check valve is only used on the pipeline where the medium flows in one direction, preventing the medium from flowing back to prevent accidents.