Valve Manufacturing Plant

When installing a grooved swing check valve, the following considerations are important to ensure proper installation and long-term reliable operation:

1. Valve Inspection

• Check Valve Integrity: Before installation, inspect the grooved swing check valve for any appearance issues, cracks, defects, or damage to the valve body, valve seat, and valve disc.
• Verify Model and Size: Ensure that the selected valve model, specification, and connection size match the pipeline system, especially the grooved size and valve interface size.

2. Installation Position

• Correct Flow Direction: Ensure that the flow direction of the valve matches the system’s flow direction. The valve usually has a flow direction arrow marked on the valve body, and it must be installed according to this direction.
• Avoid Vertical Installation: It is recommended to install the grooved swing check valve on a horizontal pipeline, avoiding vertical installations to reduce the possibility of valve disc vibration and jamming.
• Installation Space and Accessibility: Make sure there is adequate space around the valve for operation and maintenance, allowing easy access for future repairs or replacement.

3. Grooved Connection

• Confirm Grooved Size: Before installation, verify that the grooved size of the pipeline matches the valve, ensuring the correct fit and preventing installation failure or leaks.
• Use Proper Grooved Fittings: Select the correct grooved couplings, gaskets, and bolts based on the pipe type to ensure a secure, leak-free connection between the valve and the pipeline.
• Tighten Bolts Evenly: Bolts should be tightened in an even, cross-pattern manner to ensure a secure seal without over-tightening. Excessive torque may damage the valve body or affect its operation.

4. Seal Inspection

• Check Seal Surfaces: Before installation, inspect the sealing surfaces of the valve to ensure they are clean and smooth. The sealing surfaces should not have any debris or scratches that could cause leakage or improper sealing.
• Use Appropriate Sealing Materials: Ensure that compatible sealing gaskets or sealing tape are used to prevent leaks due to inadequate sealing.

5. Valve Disc Movement Check

• Check Disc Freedom of Movement: After installation, manually check that the valve disc can move freely, opening and closing smoothly. The disc should move without obstruction, and there should be no jamming.
• Avoid Disc Collisions: Ensure that the valve disc does not collide with the pipe wall or other components during operation, which could damage the valve disc or affect normal operation.

6. Pipeline System Cleaning

• Clean the Pipeline: Before installing the check valve, clean the interior of the pipeline to remove debris, welding slag, oil, or other contaminants that could damage the valve or affect its sealing and operation.
• Air Venting: During and after installation, ensure that the air inside the pipeline is vented out to prevent gas blockages that may affect valve operation.

7. Pipeline System Pressure Test

• Pressure and Leak Testing: After installation, conduct a pressure test of the system to ensure that the valve is properly sealed and there are no leaks. The testing pressure should match the valve’s rated pressure and the system’s requirements.
• Avoid Overpressure: Avoid exceeding the valve’s maximum working pressure during testing to prevent damage to the valve.

8. Regular Inspection and Maintenance

• Routine Checks: Periodically inspect the valve’s performance to ensure that it operates smoothly without jamming, leaks, or other failures. Especially for long-running systems, it is recommended to check and maintain the valve regularly.
• Cleaning and Lubrication: Regularly clean the sealing surfaces of the valve disc and valve seat, and lubricate as necessary to prevent wear and jamming.

9. Temperature and Environmental Considerations

• Consider Temperature Variations: When installing the valve, consider the temperature of the medium. For high-temperature or low-temperature media, choose valves that are suitable for high or low temperatures, and ensure that the pipeline and valve can withstand temperature changes.
• Corrosion Prevention: If the valve operates in a corrosive environment (such as exposure to chemicals or saltwater), choose corrosion-resistant materials or apply protective coatings to the valve to prevent degradation.

By following these installation considerations, you can ensure the correct installation and long-term stable operation of the grooved swing check valve.