What are the causes of wear and tear of screw pumps

Screw pumps are made of high-quality cast iron by default, high mechanical strength and not easy to age, the key components of the stator and rotor are composed of nitrile rubber and stainless steel, stainless steel rotor excellent wear resistance, compared to the rubber stator in long-term use will gradually wear, know the reasons for wear and tear of the screw pump and proper replacement is necessary, can significantly improve the service life of the pump and operational stability.

On the screw pump wear reasons, from past experience with pumps, in the premise of no accidental failure, screw pump performance gradually decline is mostly due to the wear of the rubber stator, because the stator in the wear serious, the stator and then rotor meshing movement to move the material will be affected, the pressure in the pump cavity will also produce changes, resulting in reduced flow, so effectively improve the life of the stator will be able to make a single Screw pump work longer.

After various types of media operating tests found that, in addition to the media itself, the content of the composition of the single screw pump stator wear speed is also affected by the contact force between the stator and rotor and speed, so it is recommended for different media use different speed, in general, the more viscous the media should use low speed to slow down the wear, if in the transport of solid particles or very high viscosity of the slurry type media If a high speed is maintained when transporting solids or slurry media of very high consistency, this will not only accelerate the wear of the stator, but may also overload the motor.

After finding the cause of screw pump wear, the user can choose a single screw pump before the media composition of the properties of custom stator material, in the pump industry for different transport conditions, can provide silicone stator, fluorine plastic stator, butylene stator and so on a variety of stator, these high-quality stator has outstanding wear resistance, corrosion resistance, high strength, etc., the right choice can effectively slow the wear of the stator.

On the cause of wear and tear of the screw pump, from past experience with pumps, in the premise of no unexpected failure, the progressive decline in the performance of the screw pump is mostly due to the wear and tear of the rubber stator, because the stator in the wear and tear of serious, stator and rotor mesh movement to move the material will be affected, the pressure in the pump cavity will also produce changes, resulting in reduced flow, so effectively improve the service life of the stator will be able to make a single Screw pumps work longer.

After various types of media running tests found that, in addition to the media itself composition content, single screw pump stator wear speed is also affected by the contact force between the stator and rotor and speed, so it is recommended for different media use different speed, in general, the more viscous the media should use low speed to slow down the wear, if in the transport of solid particles or very high viscosity of the slurry type media If a high speed is maintained when transporting solids or slurry media of very high consistency, this will not only accelerate the wear of the stator, but may also overload the motor.

After finding the cause of screw pump wear, the user can choose a single screw pump before the media composition of the properties of custom stator material, in the pump industry for different transport conditions, can provide silicone stator, fluorine plastic stator, butylene stator and so on a variety of stator, these high-quality stator has outstanding wear resistance, corrosion resistance, high strength, etc., the right choice can effectively slow the wear of the stator.

In summary, a brief introduction to the causes of wear of screw pumps, in fact, stator wear can also be simply divided into wet abrasive wear, fatigue wear, erosion wear, friction wear, etc.