Alfa Laval MR
Alfa Laval MR
Alfa Laval MR Liquid-Ring Centrifugal Pump
The Alfa Laval MR is a hygienic liquid-ring centrifugal pump designed for pumping liquids containing air or gas in hygienic process environments. It is specifically engineered for low-NPSH duties and stable operation in CIP systems, fermentation and gas-entrained liquid handling.
The MR pump is suitable for food, beverage, dairy, pharmaceutical, biotechnology and personal care processing and is available in configurations supporting ISO 2037, DIN and SMS hygienic standards. FDA-compliant materials and CIP-ready design ensure safe operation in clean and hygienic applications.
Available in both 50 Hz and 60 Hz motor configurations, the Alfa Laval MR pump supports global installations across hygienic and process industries.
Related LKH Pump Variants
The Alfa Laval MR pump is part of the wider LKH hygienic pump family. Other LKH models are available for specific applications such as evaporation, high pressure, explosion-proof environments and pharmaceutical processing.
The Alfa Laval MR pump is available in 50 Hz and 60 Hz versions, making it suitable for pharmaceutical processing, biotechnology, fermentation and hygienic food applications worldwide.
A premium performer
Part of Alfa Laval’s premium LKH range, the MR pump delivers high efficiency, reliable gas handling and low life-cycle cost.
High efficiency
Precision hydraulics and motor design maximize energy transfer while treating gas-entrained liquids gently.
Excellent gas handling
The liquid-ring principle creates a stable seal that compresses entrained air or gas, preventing cavitation and ensuring smooth operation.
Low energy consumption
Optimized impeller geometry and premium motor often achieve over 30% energy savings versus comparable mid-range pumps.
Cleanability and hygienic design
Crevice-free internals, controlled compression gaskets and an external mechanical seal ensure thorough CIP cleaning.
Hygienic Standards and Compliance
- Designed to support ISO 2037 hygienic requirements
- Available with DIN and SMS hygienic connections
- FDA-compliant materials for product-contact components
- CIP-capable for hygienic processing systems
- Suitable for food, beverage, pharmaceutical and biotechnology applications
External shaft seal – serviceable
Front-loading seals avoid product contact and can be replaced in minutes. Interchangeable single, flushed or double seals simplify inventory.
Liquid-ring principle
A rotating liquid ring forms a seal that compresses entrained gas, enabling reliable, low-NPSH operation.
External shaft seal
Front-loading seals located outside the product zone allow fast, inexpensive maintenance and resist pressure shocks.
Optimised shaft seal
One standard seal fits 11 LKH models and all SolidC pumps. Single or double flush variants swap in minutes, reducing downtime.
Compression couplings
Precision compression couplings align the stub shaft to the motor shaft, minimizing noise, vibration and bearing wear.
Handling foamy or air-filled fluids in your CIP or process system?
Contact us to select the optimal Alfa Laval MR pump for low NPSH and hygienic performance.