Skip to Content

Lime milk transfer without the clogging

How Vaikon’s high-chrome slurry pump improved dosing reliability and cut downtime.


Location
Hungary

Industry
Metal


Lime slurry is tricky. 
It settles fast and hardens in tight spaces.


Metal production is a high-intensity environment where precision and reliability matter. Lime milk dosing plays a critical role in surface treatment and corrosion protection. Any inconsistency in flow or composition can affect product quality and operational safety. That’s why robust, low- maintenance equipment is essential.


Challenge

At a steel sheet galvanizing plant in Hungary, lime milk (calcium hydroxide slurry) was  transferred using plastic centrifugal pumps (Munsch NP). But the setup caused recurring problems. The pumps clogged, cracked and wore out, causing downtime and driving up maintenance costs. The issues: 


Frequent clogging

from sediment and solids buildup.


Impeller damage

during startup, dry-running or cavitation.


High maintenance costs 

due to frequent disassembly and part replacement.


Inconsistent dosing 

and process interruptions. 

Solution

Vaikon recommended a switch to the Schegler Vigor horizontal slurry pump (model Vi1.5x1-SR.BH.IH.LH.I5VO.F1.D000-BUCD02), lined with high-chrome white iron (~27% Cr) for maximum abrasion resistance.


Key features


• High-chrome wetted parts

Built to last in abrasive conditions.


• Open impeller design

Prevents clogging and scaling.


• Restricted gland packing seal

Prevents unwanted dilution of the lime milk slurry.


The pump was integrated seamlessly into the existing system, boosting performance without major changes.


Why Open Impeller Matters


Lime slurry is tricky. It settles fast and hardens in tight spaces. Closed impellers trap particles and scale up quickly. Open impellers offer wider passages, smoother flow, and easier cleaning, making them the smarter choice for lime milk transfer.


Result

The upgrade delivered:

  • Longer pump life
  • Less downtime
  • More reliable lime dosing
  • Lower total cost of ownership

Vaikon’s solution didn’t just fix the problem, it improved the entire process. Reliable, efficient and built to last.



Need a pump that handles slurry without the hassle?

 Contact Vaikon today!

Download

Our parts are fully compatible with certain Warman® models. Warman is a registered trademark of Weir Minerals. 
We are not affiliated with or endorsed by Weir Minerals.


Emergency pump replacement
From downtime to uptime: how Vaikon restored a critical filter press under pressure