Fire-fighting valve is an important accessory for industrial and construction pipeline control. The main product is a valve with high control accuracy, especially for flow control. At present, it is widely used in industrialized control systems, and various problems usually occur during use to trouble us. This editor mainly tells you the causes and treatment methods of internal leakage of fire valves.

1. From the analysis of the cause and solution of the problem, due to the influence of the process during processing or assembly, the maintenance/repair personnel is likely to cause internal leakage of the electric control valve. At this time, it is mainly due to the comparative fixed limit switch. When the control medium is running, the continuous flushing and mode of the regulating valve will cause the valve to fail to close and cause internal leakage. In this regard, we should mainly adjust the position of the limit switch to solve this phenomenon.

2. The internal leakage of the fire valve was caused by improper debugging. Due to the failure of the electric control valve in the control part, various reasons such as the limit switch and over-torque switch of the valve lead to wear or corrosion of the sealing surface, which will also cause internal leakage. In this regard, we should still work hard to adjust the limit switch.

3. Due to the inaccurate setting of the zero position of the electric actuator, this is the reason that the valve cannot be fully closed and the internal leakage occurs. The main adjustment method is to manually close the valve, or use the manual valve to close the valve and then turn it back half a turn after it can't move. This is to adjust the adjustment limit.

4. The valve is a push-down closed type. If the thrust of the actuator is not large enough, the valve will not be able to be fully closed and internal leakage will occur. The main solution is to replace the high-thrust actuator.

The leading products of Jiangsu Liangzheng Valve Co., Ltd. include: ball valves, butterfly valves, globe valves, check valves, flat gate valves, etc. From the selection of materials to the delivery of finished products, the whole process uses the international advanced management mode to realize the professional, automated, standardized and procedurally organized production. The company insists on scientific and technological innovation as its development orientation, optimizes product structure, and guarantees the quality and speed of new product development and production.