Effects of Worn Rotors in Sewage and Sludge Pumps

September 12, 2018

It is easy to look at your sewage or sludge pumps as a fixture of your plumbing system without the need of ever taking a closer inspection. However, without a closer inspection, we would not be able to identify the many problems that can crop up with your pumps during the lifespan of their operation. With sewage and sludge pumps, one of the most common issues that you will run into is that of worn rotors. Rotors are incredibly important not just for the operation of your pump but for the operation of your entire system.

Rotors are mechanical pieces inside of your pump that help to rotate the shaft assembly, thus helping to move along whatever viscous liquid it is that you are transporting. With that being said, worn rotors can dramatically impact your pump's performance. Let's look at the impact and effects of worn rotors for today's discussion.

Impact of Worn Rotors on Sewage & Sludge Pumps

Most of the people reading this column probably aren't engineers who are used to inspecting mechanical components inside of sludge and sewage pumps. With that being said, there are some telltale signs that can be used to find out whether or not your pump's rotors are starting to wear out. We don't want to spend too much time on symptoms of a worn rotor, however, as we are far more interested in what can happen to your pump when your rotor starts to wear out. So, with that being said, let us look at the most common effects of a worn rotor system inside of a sewage or sludge pump.

1) Developed Wear Patterns - One of the key impacts of a worn rotor will be the way that your material works across the metal surface of the rotor itself. A worn rotor, one that is simply old or beaten down by use, will start to develop long, scored marks across its body. These score marks will accumulate material and begin to mechanically weaken your entire system.

2) Chemical Pitting - Depending on the type of liquid that you are transporting, you may potentially end up facing chemical pitting on your rotor. Chemical pitting is basically a chemical reaction that occurs due to the nature of the materials that your pump is moving. Chemical pitting will wear out your rotor due to chemical reactions.

3) Weakened Integrity - Finally, the most apparent effect of a worn rotor is the weakened integrity of your entire system. As your rotor wears down, your entire pump system is put in jeopardy. Left untreated, your pump could reach integrity failure.

Contact Alpha Pumps:

Phone:    (03) 9311 7188
Fax:          (03) 9364 9554
Mobile:    0403 030 830

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