Question 1

Should I replace the pump stator and rotor at the same time?

Accepted Answer

The pump rotors run and fit with the stators in a progressive pump system. Similar to the pump stators, the PC pump rotors also wear out somewhat in the pumping work. But its wear speed is slower than the pump stator. Therefore, sometimes, you only need the pump stator spare parts or the pump rotor replacements. For fluids that do not contain solid particles, one pump rotor can easily outlive 3 or even 4 stators.

However, in certain cases, we suggest you replace both the rotor and the stator at the same time to guarantee optimal performance and avoid premature wear on the newly replaced stator. For example, when there is defective seaingl between the former rotor and the new pump stator, some hard particles found in the fluid may cause leaking risk in the pump system. That would result in greater wear on the new stator replacement part.

Question 2

Can progressive cavity pumps pump water?

Accepted Answer

The progressive cavity pump (PC Pump) is a positive displacement pump. It is a highly versatile pump that can be used in many different pumping applications. PC Pump offers all the advantages of a positive displacement pump but it is different from a centrifugal pump and less commonly used.

When pumping water-like fluids with low viscosity or when a fixed flow and constant discharge pressure are basically requested, a centrifugal pump is a good and economical choice instead of the progressive cavity pump. A well-applied centrifugal pump will offer many years of reliable service in simple pumping applications.

Question 3

How to prevent the progressing cavity pump from dry running?

Accepted Answer

There are many practical methods to prevent the progressing cavity pump from dry running. Don’t hesitate to click and read the details in the post

Question 4

How to know which component should be replaced in my pump?

Accepted Answer

Well, when there is a problem with your progressing cavity pump. You need to firstly check what the problem is and which part caused the problem. Normally, you need a professional staff to disassemble, check and replace the damaged parts when the flow rate and pressure decrease, or there is abnormal noise in the pump or the pump fail to rotate, etc. When the damaged part is found, the professional staff would tell you the damaged part number or part name.

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