Ball valve product quality inspection

Quality inspection requirements for ball valve products

1. Appearance inspection: Check whether the appearance of the ball valve is intact, whether there are scratches, oxidation, rust, and other defects on the surface, to ensure that the product appearance meets the requirements.

2. Dimension inspection: Check whether the dimensions of the ball valve meet the design requirements, including the dimensions of the valve body, valve cover, valve stem, valve ball, and other components.

3. Material inspection: Check whether the materials used in the ball valve meet the requirements, including the quality of the materials used for the valve body, valve cover, valve ball, and other components.

4. Sealing performance inspection: Check the sealing performance of the ball valve, including static and dynamic sealing performance to ensure that the valve can be completely sealed when closed.

5. Operational performance inspection: Check the operational performance of the ball valve, including whether opening and closing are flexible and smooth, and whether the operating force meets the standard requirements.

6. Pressure resistance performance inspection: Conduct pressure resistance tests to check whether the ball valve can work normally under the rated pressure, ensuring that the product's pressure resistance performance meets the requirements.

7. Corrosion resistance performance inspection: Conduct corrosion resistance performance tests on the materials of the ball valve to ensure that the product can be used normally in corrosive media.

8. Leakage inspection: Conduct leakage tests to check whether the ball valve has leakage when closed, ensuring that the product has good sealing performance.

9. Marking inspection: Check whether the markings on the ball valve are clear and complete, including the product model, specifications, pressure, and other information correctly labeled.

In summary, the quality inspection requirements for ball valve products include appearance inspection, dimension inspection, material inspection, sealing performance inspection, operational performance inspection, pressure resistance performance inspection, corrosion resistance performance inspection, leakage inspection, and marking inspection to ensure that the product quality meets the standards and customer requirements.