Pump outlet return pipe diameter
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May I ask, there is a branch in the pipeline at the pump outlet that returns to the storage tank. What is the purpose of this? How should the pipe diameter and flow rate be determined?
This post was last edited by zhuhonl on 2010-6-13 at 16:24. The flow control circuit is mainly used for testing during operation. When it is necessary to reduce the pumping volume during the processing process, the pump’s flow rate can be adjusted to the allowable minimum level, thereby effectively protecting the pump.
To ensure that the pump’s flow rate reaches the required minimum level, thereby effectively protecting the pump and the entire system’s piping, an automatic recirculation valve must be installed 0 meters from the pump’s outlet (it is essential to install this valve). We are the only company in China that produces such valves, offering excellent quality and delivery times. Feel free to contact us at WML08@126.COM
Two functions come to mind: it protects the pump while also carrying out a preliminary mixing of the material inside the tank, thereby ensuring that the material is uniform before it moves on to the next processing step. When the pump has a feeding function, then this return pipe serves as the feed pipe for the tank; more material is added from below
I think there is another function as well, which is to stir the return tank and effectively prevent sedimentation
The flow rate is 35% of the pump’s rated flow rate, and the diameter of the return pipe is calculated based on this value.
The most important thing is to prevent the pump from getting stuck, thereby protecting the pump