Slurry pump impeller material and how to choose?

Slurry pump impeller material selection needs to be based on specific conditions and media characteristics to decide, common materials and selection points are as follows:
1. high chromium cast iron (Cr15, Cr27)
Features: high hardness, good wear resistance, suitable for conveying strong abrasive slurry.
Application: commonly used in mining, metallurgy and other fields of slurry transportation.
2. Rubber
Features: good elasticity, corrosion resistance, suitable for conveying corrosive media containing particles.
Application: chemical industry, environmental protection and other fields, especially suitable for more corrosive conditions.
3. polyurethane
Features: excellent abrasion resistance and elasticity, suitable for conveying slurry containing fine particles.
Application: suitable for smaller particles, less abrasive working conditions.
4. stainless steel (such as 304, 316)
Characteristics: strong corrosion resistance, suitable for conveying corrosive media.
Application: chemical, food and other industries, especially the more corrosive occasions.
5. Duplex stainless steel
Features: both high strength and corrosion resistance, suitable for high corrosion, high wear conditions.
Applications: seawater treatment, chemical and other highly corrosive areas.
6. ceramic
Features: high hardness, excellent wear resistance and corrosion resistance, but brittle.
Application: suitable for highly abrasive and corrosive working conditions.
Selection points:
Media characteristics: according to the abrasive slurry, corrosive and particle size to choose the right material.
Working conditions: consider the temperature, pressure, flow rate and other conditions on the material.
Economy: under the premise of meeting the performance requirements, choose the cost-effective material.
Service life: according to the working conditions, choose the material with better wear resistance and corrosion resistance to prolong the life of the impeller.
Summarize:
High chrome cast iron: suitable for highly abrasive working conditions.
Rubber / polyurethane: suitable for corrosive media.
Stainless steel / duplex stainless steel: suitable for corrosive conditions.
Ceramic: suitable for highly abrasive and corrosive conditions.
According to the specific conditions and media characteristics to choose the right impeller material, can enhance the efficiency and life of the pump.