Slow closing check valve, also known as check valve, is used to prevent the medium from flowing back in the pipeline. The opening and closing parts are opened or closed by the force of the medium flow. Check valves belong to the category of automatic valves, and are mainly used on pipelines with one-way flow of medium, and only allow the medium to flow in one direction to prevent accidents. This type of valve should generally be installed horizontally in the pipeline.

Structural Features

1. Short structure length, small size, light weight, convenient installation, sensitive action and good sealing performance.

2. Both horizontal and vertical pipelines can be used, the valve disc closes quickly, and the water hammer pressure is small.

3. The overall structure is simple and compact, with beautiful shape, smooth flow channel and small fluid resistance.

4. The stroke of the disc is short, the impact force of closing the valve is small, the service life is long and the reliability is high.

Installation Precautions

1. When placing the pipeline, care should be taken to make the passing direction of the slow closing check valve consistent with the flow direction of the fluid, and it should be installed in a horizontally placed pipeline.

2. Never connect slow closing check valve directly with other valves.

3. Avoid adding pipe joints and obstructions within the operating radius of the valve plate of the slow closing check valve.

4. When installing the slow closing check valve near the elbow, pay attention to leaving enough space.

Sealing Surface Leakage Prevention Measures

1. Improve the manufacturing quality, and use the slow closing check valve after the pressure test is qualified.

2. Periodic inspection and cleaning, slow closing check valve should not be used in media with a lot of sediment.

3. Correctly adjust the adjusting parts of the slow closing check valve so that the closing position is consistent with the position caused by the wrench.