Feed pump minimum flow control valve

When the output flow of the feed pump is less than the specified minimum flow, it will cause the liquid in the feed pump to vaporize, and even cause the feed pump to fail to work after vaporization. The function of the minimum flow control valve is to automatically open immediately when the output flow of the feed pump is reduced to the minimum flow, and divert part of the output flow of the feed pump to the deaerator, so that the feed pump can operate under reliable conditions. Effectively protect the safe operation of the feed pump. When the flow rate of the feed pump increases to above the minimum flow rate, the minimum flow valve is automatically closed, and the system enters the normal working state.
The minimum flow control valve is actually a throttle valve with the function of regulating flow.
This type of valve uses a labyrinth disc formed by stacking multiple labyrinth sheets to form a throttling element. The water flow is throttling and depressurizing by twisting and turning in the labyrinth, which is a new trend in today's technology. To control the flow, the valve core moves up and down to change the size of the labyrinth flow section to achieve the purpose of adjusting the flow. Therefore, it has the characteristics of anti-cavitation, wear resistance, low noise, relatively simple structure and very convenient maintenance.