Views: 0 Author: Site Editor Publish Time: 2020-05-04 Origin: Site
Safety Valve Leakage Problem And Maintenance
Improper selection or incorrect operation may result in faults to safety relief valves. If such faults are not corrected in time, they can have impact on the effect and life of valves, and even cause them unable to perform the function of safeguard. the following article had shown the common faults and maintenance solutions for safety relief valve Leakage problem.
Main Problem | Causes | Maintenance Solutions |
Leakage | 1. Dirt Occurred on sealing surface | Use lift wrench or other method to make valve opened several times to wash away the dirt. If the dirt cannot be removed, take apart the valve to clean it away, and then have the valve reassembled for commissioning. |
2. Sealing surface damaged | Take apart the valve and have the damage repaired by grinding or grinding after turning responding to the extent of damage. After repair, sealing face shall be assured of sound plainness With its roughness Ra value not lower than 0.1. | |
3. Improper installation or the additional load of pipeline | Re-install or remove the additional load of pipeline. | |
4. High temperature or corrosive media | Have spring or even valve replaced according to the actual working conditions. If it is merely for the reason of improper adjustment of spring, it can be regulated by fastening or loosening the adjusting bolt. | |
5. The opening pressure of safety valve is too close to the working pressure equipment | Reset the pressure with the permissible range of spring pressure. On the condition that strength can be met, the set pressure of safety valve shall be suitably enhanced. |
