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May 11, 2022 View:

How To Choose The Rotary Lobe Material Of Dirty Oil Rotary Lobe Pump

In recent years, lobe pumps have been widely used in the petrochemical industry, especially for the transfer of dirty oil. To make the use of dirty oil lobe pump more effective, it is very important to choose what kind of rotor material, today Ace lobe pump's will introduce how to choose the rotor material of dirty oil lobe pump.

1、Nitrile rubber

This material has good resistance to fuel oil and aromatic solvents, but it should be noted that it is not resistant to ketones.


Contrary to NBR, which has good resistance to oil and solvents, but not to aromatic oils, this rubber has a long service life and is resistant to weathering and long-term use at temperatures above 200°C without any problems. It is also very resistant to corrosion and flexural properties, and is widely used in the use of dirty oil lifting pumps.

3. Natural rubber

Natural rubber has good all-round properties, is cold resistant, has a high elasticity and is easy to rebound after use, but one disadvantage is that it is not resistant to mineral oil, so special care should be taken when using it.


It can work in high ambient temperatures from 200 to 250°C. It has excellent oil resistance and is mostly used in the manufacture of cylinder liner seals, which have good sealing properties and long service life and can significantly improve service life.

5、Silicone rubber

The rubber material of the rotor of the oil lifting pump is often used to silicone rubber, which is very resistant to high and low temperatures and ozone, with a normal working temperature range of -70 to 260°C. As long as it is within this working temperature, it is possible to have good elasticity, as well as good resistance to ozone and weathering.

The above is the lobe pump in the more commonly used several rotor material, in the selection must be based on the working conditions, conveying materials to choose the right lobe pump. Zhejiang Ace professional lobe pump manufacturer, if you need lobe pump selection, quotation please call: +086-18626835909