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In modern industrial pipeline systems, knife gate valves are widely used in water treatment, mining, chemical, papermaking and other industries due to their unique design and excellent performance. As a key fluid control device, knife gate valves are not only used to switch the flow of fluids, but also provide reliable sealing under various operating conditions. In order to ensure the best performance of knife gate valves, correct installation and use are essential. This article will provide you with a guide to the installation and use of knife gate valves to help users improve safety and efficiency in operation.

1. Features of knife gate valves

The knife gate valve has a unique blade design that can effectively cut solid particles in the fluid, which makes it perform well when handling fluids containing suspended matter. In addition, the knife gate valve has a simple structure and is easy to maintain, making it suitable for the switch control of various pipeline systems.

2. Preparation before installation

Check the valve: Before installation, carefully check the appearance, sealing surface and internal components of the knife gate valve to ensure that there is no damage or defects.

Confirm the pipeline specifications: Confirm that the size of the pipeline matches the connection size of the knife gate valve, and ensure that the valve interface is consistent with the connection method of the pipeline.

Clean the pipeline: Make sure the pipeline is clean and free of impurities to prevent damage to the sealing surface of the knife gate valve during installation.

3. Installation steps

Determine the installation location: Select an appropriate installation location to ensure that the horizontal or vertical position of the knife gate valve in the pipeline system meets the design requirements.

Use a bracket: During the installation process, use a bracket or support device to fix the knife gate valve to prevent it from tilting or deforming during installation.

Connect the pipeline: Align the knife gate valve with the flange or joint of the pipeline and fix it with bolts and washers. Make sure the bolts are tightened evenly to prevent leakage caused by uneven tightening.

Perform a sealing test: After the installation is completed, perform a sealing test to ensure that the valve has good sealing performance. Pressurized water or gas can be used to check for leaks.

4. Precautions for use

Operating conditions: Make sure that the knife gate valve is used within the specified temperature and pressure range to avoid valve overload.

Regular inspection: Check the knife gate valve regularly to ensure its normal operation. The inspection content includes the valve's switching flexibility, sealing performance, and whether the appearance is damaged.

Avoid frequent switching: The knife gate valve is suitable for long-term switching operations, and avoid frequent opening or closing to extend its service life.

Maintenance: Regular maintenance, including cleaning the sealing surface and replacing worn parts, ensures the long-term performance of the knife gate valve