Selection of check valve

Selection of check valve

1. The lift type is better than the swing type, and the fluid resistance is large. The horizontal type should be installed on the horizontal pipe and the vertical one is installed on the vertical pipe;

2. The installation position of swing check valve is not limited, it can be installed on horizontal, vertical or inclined pipelines. If installed on vertical pipe, the flow direction of medium shall be from bottom to bottom;

3. The swing check valve should not be made into small diameter valve, which can be made into a high working pressure. The nominal pressure can reach 42MPa, and the nominal diameter can also be large, and the maximum can reach more than 2000mm. Any working medium and any operating temperature range can be applied according to the material of shell and seal. The medium is water, steam, gas, corrosive medium, oil, medicine, etc. The working temperature range of medium is between -196-800 ℃;

4. The swing check valve is suitable for low pressure and large diameter, and the installation is limited;

5. The installation position of butterfly check valve is not limited, and can be installed on horizontal pipeline or vertical or inclined pipeline;