The installation of socket welded forged steel check valve should pay attention to the following matters:

1. Do not make the check valve bear weight in the pipeline. The large check valve should be supported independently so that it will not be affected by the pressure generated by the piping system.

2. During installation, pay attention to the direction of medium flow should be consistent with the direction of the arrow on the valve body.

3. The lift-type vertical flap check valve should be installed on the vertical pipeline.

4. The lift-type horizontal flap check valve should be installed on the horizontal pipeline.

Wafer lift check valve should be installed on the pipeline in the horizontal direction.

Swing check valves can be installed horizontally or vertically. The disc of swing check valve rotates around the rotating shaft, and its fluid resistance is generally smaller than that of lift check valve. It is suitable for occasions with larger diameters, and the installation position is not limited. It is usually installed in horizontal pipelines. It is suitable for use with for larger diameters.

Multi-lobe check valves or large-caliber silent check valves should be used on large-diameter water pipes, so that the closing time of each valve is staggered or closed slowly, so as to reduce the damage of water hammer.