Gate Valve  installation instructions:

Verify that the valve is suitable for the operating specifications of the medium (installation); such as maximum operating pressure, maximum operating temperature, corrosiveness and abrasiveness, etc.

The operating temperature of the check valve is -10/+120°C
Keep the valve in a clean environment and do not remove the protective caps until installation.

The valve can be used in the pipeline in any position.
Before installation, the pipe must be cleaned of all dirt such as sand, gravel, dirt, welding residues, etc.

Use strainers, in suitable sections of the pipeline, for future protection of the valve from dirt and foreign substances.
The pipeline should be free of tension before installation commences.
Verify that the distance between the flanges, where the valve will be connected, is equal to the length of the valve body.

Use suitable gaskets between the valve flanges and the counter flanges.

First, mount one side of the valve and only lightly fit the bolts. Do not fully tighten the bolts yet. Similarly, mount the other side of the valve. Finish by uniformly tightening the bolts, to avoid twisting the valve body, on both sides of the valve.