Customer cases Kemira and Renova
Protection against crystallisation in process pumps
Several of our industrial customers experienced the same problem: their pumps were damaged when the medium crystallised on contact with air. Over time, the seals wore out, leading to leaks, downtime and increased maintenance costs.
This is a common problem in processes with:
- lime
- iron chloride
- salt water
- lye
- and other crystallising media.
Lyma solution - liquid barrier with quench
To prevent crystallisation, a quench - and liquid barrier on the atmosphere side of the pump. The barrier fluid prevents oxygen contact and thus protects the seal against wear and clogging.
The fluid is self-circulating and pressureless, making the solution both maintenance-free and energy efficient. In the system, the fluid is transported in on one side and out on the other by the heat generated in the seal. The result is a stable and tight sealing area without crystallisation.
The result - longer lifetime and lower costs
By implementing a quench, the customer got a simple, cost-effective and sustainable protection against wear and tear. The solution has proven to be an economical alternative to double sealing, with clear improvements in reliability, service life and maintenance intervals.


Media Lime milk 10 - 20%
Density 1.15 kg/dm³
temperature Max 70°C
Capacity 4.5 m³/h
Lifting height 13 mvp
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Media FeSO4 solution with HCl
Viscosity 40 mPas at 20 °C
temperature 65-70 °C
Density 1.5 kg/dm³
Capacity 40 m3/h
Lifting height 13.6 mvp (about 2 bar)
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