What materials are typically used for the stator of a single-screw pump?

2025-10-13 09:45:37

The materials commonly used for the stator of a single-screw pump include rubber, elastomers, and synthetic resins. The choice of these materials depends primarily on the pump's application, the nature of the conveying medium, and the required wear resistance, corrosion resistance, and elasticity.

Rubber: Rubber stators offer excellent elasticity and wear resistance and are suitable for conveying non-corrosive media with moderate viscosity. Rubber materials can also be formulated to meet specific temperature, oil, or chemical resistance requirements based on the characteristics of the medium.

Elastomer: Elastomer stators offer enhanced wear and corrosion resistance and are suitable for conveying highly corrosive media or those containing solid particles. They typically have improved mechanical strength and fatigue resistance, ensuring a long service life under harsh operating conditions.

Synthetic resin: Synthetic resin stators are primarily used in specialized applications, such as high-temperature or high-pressure environments. They typically offer high thermal stability and mechanical strength, enabling stable pump operation under extreme conditions.

When selecting a material for a single-screw pump stator, it's important to consider factors such as the pump's operating conditions, the nature of the medium, and cost.