Modern data centres – particularly for AI applications – place the highest demands on the reliability and efficiency of their cooling systems. The waste heat generated must be dissipated continuously, precisely and reliably. Centrifugal pumps from Schmitt make a decisive contribution here: they handle the transfer of cooling media, heat transfer fluids and chemical additives in closed and open cooling systems.

The pumps do not come into direct contact with sensitive IT components, but are used specifically in peripheral cooling and process circuits – for example in cooling water systems, recooling systems, heat exchangers, or for the dosing and circulation of additives for water treatment.

• Pumping of cooling water in closed and open cooling circuits (e.g. recooling systems, heat exchangers)
• Circulation of water-glycol mixtures for temperature-stable cooling of server and GPU clusters
• Use in secondary cooling circuits (separation of IT system ↔ building cooling)
• Pumping of ultrapure water (deionised water) in high-purity cooling systems
• Dosing and circulation of chemicals for water treatment (biocides, corrosion inhibitors, pH regulators)
• Use in return basins and collection tanks (e.g. with immersion pumps)

• Pumping of coolants in liquid cooling systems (direct-to-chip cooling, immersion cooling – peripheral circuits)
• Operation in emergency cooling and redundancy systems to safeguard critical infrastructure
• Use in heat recovery systems (removal and reuse of waste heat)
• Pumping of heat transfer fluids in high-temperature cooling concepts
• Use in chemical auxiliary processes within data centres (cleaning systems, disinfection circuits)
• Integration into water treatment systems within data centres (filtration, desalination, circuit maintenance)

Data centres are among the most critical infrastructures of all – failures are not an option. SCHMITT centrifugal pumps are specifically designed for demanding industrial applications and provide precisely the characteristics that are essential in data centre cooling:

• Continuous operation and high reliability for 24/7 applications
• Chemical resistance to cooling media, additives and corrosion inhibitors
• Dry-run capability (depending on series) for additional operational reliability
• Low-maintenance operation to minimise downtime
• ATEX options for special safety requirements

These characteristics play a central role, particularly when using treated water, glycol mixtures or chemical additives for biocide and corrosion control.

Data centres use various fluids to dissipate heat efficiently and protect systems over the long term. SCHMITT pumps are suitable for:

• Cooling water (open and closed circuits)
• Water-glycol mixtures
• Ultrapure water (e.g. in high-purity systems)
• Chemicals for water treatment (e.g. biocides, corrosion inhibitors)

Due to their design for low to medium viscosities and low solids content, the pumps ensure stable and continuous pumping operation – even under varying load conditions.