Fire valve is an important accessory for industrial and building pipeline control. The main products have high control accuracy, especially flow control. At present, it is widely used in industrial control system. In the process of use, there are often various problems perplexing us

告诉我们消防阀内部泄漏的原因和处理方法。

Tell us the cause and treatment of internal leakage of fire valve.

从问题产生的原因及方案分析，

Analyze the causes and solutions of the problems,

消防器材公司的维修人员在加工或组装过程中，受工艺影响，很可能造成电动调节阀内部泄漏。此时，主要是由于固定限位开关的动作以及控制阀在运行过程中控制介质对控制阀的不断冲刷和作用方式，导致阀门无法关闭，造成内部泄漏。在这方面，我们主要应该调整限位开关的位置来这一现象。

In the process of processing or assembly, the maintenance personnel of the fire equipment company are likely to cause internal leakage of the electric control valve due to the influence of the process. At this time, it is mainly due to the action of the fixed limit switch and the continuous scouring and action mode of the control medium on the control valve during the operation of the control valve, which makes the valve unable to close and causes internal leakage. In this regard, we should mainly adjust the position of the limit switch to solve this phenomenon.

的消防阀调试不当导致内部泄漏。由于电控阀的控制部分故障，阀门的限位开关和过扭矩开关会导致密封面磨损或腐蚀，也会导致内部泄漏。在这方面，我们仍应努力调整限位开关。

Improper commissioning of the fire valve resulted in internal leakage. Due to the failure of the control part of the electric control valve, the limit switch and over torque switch of the valve will cause wear or corrosion of the sealing surface and internal leakage. In this regard, we should still strive to adjust the limit switch.

由于电动执行机构调零不准确，阀门无法完全关闭，出现内部泄漏。主要调整方法是手动关闭阀门，或在无法拧紧后将阀门转回半圈，以调整调整极限。

Due to the inaccurate zeroing of the electric actuator, the valve cannot be completely closed and internal leakage occurs. The main adjustment method is to close the valve manually or turn the valve back half a turn after it cannot be tightened to adjust the adjustment limit.

通过向下推关闭阀门。如果执行机构的推力不够大，阀门将无法完全关闭，并会发生内部泄漏。主要方案是更换高推力的执行机构。

Close the valve by pushing down. If the thrust of the actuator is not large enough, the valve will not be fully closed and internal leakage will occur. The main solution is to replace the actuator with high thrust.