Rotor Materials

The rotor is a key wear component in a screw pump. Common materials include:

Chrome-plated alloy steel

2Cr13 stainless steel

Stainless Steel 304

Stainless Steel 316L

Duplex stainless steel

For abrasive applications, additional surface hardening or wear-resistant coatings may be considered depending on the operating conditions.

Stator Elastomer Options

The stator is typically manufactured from elastomer materials selected according to the pumped medium.

NBR (Nitrile Rubber)

Recommended for:

Oils

Wastewater

Sludge

General industrial fluids

Characteristics:

Good oil resistance

Balanced mechanical properties

Widely used in industrial applications