No one really knows the function of a minimum flow control valve until your centrifugal pump starts to develop faults. Centrifugal pumps are very durable pump options that have diverse uses. These pumps are used in the most complex mechanical situations to Pump more diverse types of liquid under extreme temperature conditions. These pumps are excellently sturdy and durable, hence they last as long as possible regardless of the situation they are working in. However, there are some industries where the centrifugal pumps work that will be exposed regularly to some conditions due to cavitation and thermal changes. Over time, due to these situations, your centrifugal pump may not exactly stand the test of time. However, it all depends on the frequency of the bed conditions and the type of valve in use. For instance, let’s assume your centrifugal pump develops faults because of hot liquid. If you continuously pass the hot liquid through the pump, it will develop faults. However, the valve you are using will determine the effect of the centrifugal pump.
In a centrifugal pump, you have many options when it comes to choosing a valve to use. That is why it is best for you to hire an expert to help with your centrifugal pump installation. That way, you can rest assured that you have the right valve for your centrifugal pump. Oftentimes, your expert will mostly choose an automatic recirculation valve for your pump for many reasons. The main reason the valve is their preferred choice is because of the automatic protection it gives the centrifugal pump. In this guide, we will describe the different scenarios in which the automatic recirculation valve protects your centrifugal pump.
In a non-return case
When a pump is powered up, it pumps the fluid in a single direction. As long as the pump is working, the fluid flow is in that same direction. However, when the pump stops working, the flow changes. Fluids flow in the direction of a slope unless there is a force pushing them in a direction. For instance, if your pump is pushing your fluid to a height, the fluid is only going towards that height because of the force. Once the force stops, the fluid tends to come down. In this scenario, the arv valve will help stop the fluid from going back.
In a Continuous-flow case
While your pump is working to push the fluid to another height, it is in nature to provide an allowance for a backflow. The valve can act as a leakage allowing and controlling this backlog such that it does not affect the pump.
In a valve control case
Another scenario where the arc valve works perfectly is when you want to control the flow. For this case, you will need to have a meter to measure the flow of the fluid coming through the pump. The meter is connected to the valve and when it reads any constant flow reduction, it sends a signal to open the valve to recover the decreased flow to the minimal level.