Five tips to quickly solve the valve sealing performance is poor
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Release Time：2017-07-26
Many valves generally have poor sealing performance, and many users do not know how to solve them. Wuhan Xiete Valve Technology Co., Ltd. organized senior technicians to study carefully and quickly find out five effective ways to solve the poor sealing performance of the valve. Five effective ways to solve the poor sealing performance of the valve: 1. grinding method after grinding, eliminate traces, reduce or eliminate the sealing gap, improve the smoothness of the sealing surface, in order to improve the high sealing performance of the valve. 2. improve the sealing force of the actuator to improve the sealing force of the actuator to the valve core, it is also a common method to ensure that the valve is closed, increase the sealing ratio and improve the sealing performance. Commonly used
Many valves generally have the problem of poor sealing performance, and many users do not know how to solve it,Wuhan Xiete Valve Technology Co., Ltd.Organize senior technicians to study carefully and quickly find out five effective ways to solve the poor sealing performance of the valve.
Five effective ways to solve the poor sealing performance of the valve:
1. grinding method
After grinding, eliminate traces, reduce or eliminate the sealing gap, improve the finish of the sealing surface, in order to improve the high sealing performance of the valve.
2. method for improving the sealing force of the actuator
Improve the actuator on the valve core sealing force, but also to ensure that the valve closed, increase the sealing pressure, improve the sealing performance of the common methods. Commonly used methods are:
1. Switch to small stiffness spring;
2. Working range of moving spring;
3. Increase the air source pressure;
4. Add accessories, such as with locator;
5, switch to a larger thrust of the actuator.
3. Increase Sealing Pressure by Unbalance Force
The sealing pressure generated by the actuator to the valve core is certain. When the unbalanced force generates a top-opening trend on the valve core, the sealing force of the valve core is subtracted from the two forces. On the contrary, the sealing force of the valve core is added to the two forces, thus greatly increasing the sealing specific pressure, and the sealing effect can be improved by more than 5 to 10 times than the former.
4. switch to a valve with good sealing performance
In case of necessity, consider switching to a valve with better sealing performance.
5. using single seal, soft seal method
The use of double seal control valve, can be replaced by a single seal, usually can improve the sealing effect of more than 10 times, if the imbalance force is large, should increase the corresponding measures, the hard seal valve can be replaced by soft seal, and can improve the sealing effect of more than 10 times.
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