Crystalline slurries are among the most demanding fluids to pump. Their abrasive nature can rapidly wear pump components, leading to reduced efficiency, increased maintenance and costly downtime.
At AxFlow, we help customers select pumping technologies specifically designed to handle abrasive crystalline slurries safely and reliably. Whether you're transferring crystallised chemicals, mineral slurries, salts or other abrasive suspensions, our specialists can recommend the right solution to maximise equipment life and minimise operational costs.
Why Crystalline Slurries Are Difficult to Pump
Crystalline slurries present several challenges that can significantly reduce pump life if the wrong technology is selected.
Common issues include:
- Severe wear caused by abrasive crystals
- Seal failures due to particle abrasion
- Reduced flow performance
- Blockages from solids settling
- Increased maintenance costs
- Unplanned production downtime
Selecting the correct pump depends on crystal size, solids concentration, viscosity, temperature and required flow rate.
The Best Pumps for Crystalline Slurry
Several pump technologies perform well when correctly specified for crystalline slurry applications.
Depending on your process, AxFlow may recommend:
Air Operated Double Diaphragm (AODD) Pumps
Ideal for transferring abrasive slurries containing suspended solids while offering dry-running capability and simple maintenance.
Progressive Cavity Pumps
Excellent for high-solids crystalline slurries requiring smooth, low-shear transfer and consistent flow rates.
Peristaltic Pumps
A robust solution where abrasive wear must be minimised, as only the hose comes into contact with the product.
Positive Displacement Pumps
Suitable for controlled transfer of higher viscosity crystalline products where accurate flow and reliability are essential.
Our application engineers work with you to determine the most suitable technology based on your operating conditions.
FAQs
Which pump is best for abrasive crystalline slurry?
The best pump depends on the application. Progressive cavity pumps, AODD pumps, peristaltic pumps and certain positive displacement pumps are commonly selected for abrasive slurry applications due to their ability to handle solids and minimise wear.
Why do pumps fail when handling crystalline slurry?
Common causes include abrasive wear, incorrect pump selection, seal damage, cavitation and solids settling within the system. Selecting the correct pump technology significantly improves reliability.
How can pump wear be reduced?
Pump wear can be minimised by selecting abrasion-resistant materials, choosing the correct pump type, maintaining appropriate flow velocity and ensuring the system is correctly designed for the slurry characteristics.
Can AxFlow help select the right slurry pump?
Yes. AxFlow's application engineers assess your process conditions, product characteristics and operating requirements to recommend the most suitable pumping solution for your application.
