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Common problems and solutions of high-pressure small-diameter ball valves for mining
Date: 2025-12-09Read: 20
Mining high-pressure small-diameter ball valve is a high-pressure equipment widely used in mining, petroleum, natural gas, chemical and other fields. Its main function is to control the on/off of the fluid, by changing the on/off state of the flow channel through the rotation of the sphere, in order to achieve fluid control. For the mining industry, sealing, durability, and operability are particularly important in various high-pressure environments.
Mining high-pressure small-diameter ball valveSelection skills:
1. Fluid characteristics
Different fluids (such as water, oil, gas, chemicals, etc.) have different requirements for valves. For highly corrosive fluids, corrosion-resistant materials should be selected; For high-temperature fluids, ball valves made of high-temperature resistant materials should be selected.
2. Caliber and pressure rating
The diameter is usually small, and the appropriate valve specifications need to be selected based on the diameter of the pipeline and the working pressure of the system. Generally speaking, pressure levels can be selected from PN16, PN25, PN40, etc., depending on actual needs.
3. Material selection
Materials need to consider their strength, corrosion resistance, high temperature resistance, etc. Common materials include stainless steel, carbon steel, alloy steel, etc. The selection of materials is crucial for different usage environments.
4. Driving mode
It can be driven manually, electrically, or pneumatically. Manual drive is suitable for environments with low pressure, while electric and pneumatic drive are suitable for large-scale industrial applications and can achieve remote control.
Common problems and solutions for high-pressure small-diameter ball valves used in mining:
1. Poor sealing performance
Poor sealing can lead to fluid leakage, affecting the normal operation of the system. Common reasons include worn sealing surfaces, aging valve seats, and improper installation. The solution is to regularly check the sealing surface and replace the sealing ring when problems occur.
2. The valve cannot be opened or closed
This problem is usually caused by loose connection between the valve stem and the ball, malfunction of the drive device, or foreign objects getting stuck inside the valve. It can be solved by inspecting the drive device, cleaning the debris inside the valve, or replacing damaged parts.
3. Ball wear
Long term use may cause wear on the surface of the sphere, affecting its sealing performance. The sphere should be inspected regularly and replaced if necessary.