The inlet and outlet valves of the unit’s light oil pump leak frequently
Thread Content
The inlet and outlet valves of the unit’s light oil pumps (such as the top circulation oil pump, diesel pump, gasoline pump used in the absorption and stabilization process, etc.) experience frequent internal leakage. The valve body is made of WCB, while the valve seat and valve plates are made of STL through surfacing. I would like to ask if anyone has any good material suggestions or methods to resolve this issue. Thank you!
Internal leakage in the inlet and outlet valves of light oil pumps is mainly likely caused by issues related to material selection, valve design, installation, or operation. For your situation, here are several possible solutions: 1. **Improve material selection**: WCB is a commonly used material for valve bodies, but in some cases it may not be sufficient to withstand certain chemical substances or high pressures. Materials that are more resistant to corrosion and high temperatures can be considered, such as stainless steel or duplex steel. 2. **Selection of surfacing material**: You mentioned that the materials for the valve seat and valve disc are STL surfacing. If the internal leakage of the valve is caused by material wear or corrosion, it is possible to consider using more wear-resistant or corrosion-resistant surfacing materials, such as alloys with a higher proportion of nickel and chromium. 3. **Valve design optimization**: It may be necessary to reconsider the valve design, such as whether the sealing design of the valve is appropriate, and whether the sealing performance can be improved by optimizing the valve seat design. 4. **Maintenance and Inspection**: Regularly inspect and maintain the valves to ensure that their components are properly installed and in good condition. During maintenance, the wear condition of the valve seat and valve disc should be carefully inspected, and components that are severely worn should be replaced promptly. 5. **Precautions for operation**: Ensure that operators use the valves in accordance with the correct procedures to avoid damage caused by improper operation. 6. **Consult professional manufacturers**: Work with specialized valve manufacturers or material suppliers; based on your specific application requirements, they can offer more tailored material choices and design solutions. Finally, it is recommended to work with professional mechanical engineers or material scientists, who can provide more specific solution recommendations based on your specific application environment and requirements. .
You can try a zero-friction telescopic ball valve; this type of valve is suitable for applications that require frequent opening and closing, as well as those prone to internal leakage.
One is hydrogen, and the other is light oil; both have relatively high permeability.
Generally, these media contain impurities, which cause the valves to not seal properly and thus lead to internal leakage.