Data Centre Cooling Solutions
Advanced thermal fluids and specialist cooling system services for efficient, reliable data centre cooling infrastructure.
DC Cooling Solutions are official partners and distributors of Castrol ON advanced thermal fluids, helping data centre operators optimise the performance of Primary, Facility and Technical Cooling Loops from commissioning through to ongoing fluid management and system optimisation.
Terminology varies across data centres and cooling architectures. The facility-side cooling circuit may be referred to as the Primary Cooling Loop, Facility Cooling Loop or Technical Cooling Loop.
Whatever terminology is used, its performance is critical.
These cooling loops transfer heat between data centre cooling equipment and the wider heat rejection infrastructure, supporting equipment including chillers, dry coolers, heat exchangers, air handling units and Coolant Distribution Units (CDUs).
Fluid condition, flow, temperature control and hydronic performance can therefore have a direct impact on:
For increasingly dense and liquid-cooled data centres, optimising the facility cooling infrastructure is fundamental to maintaining performance further downstream.
DC Cooling Solutions combine advanced thermal fluids with specialist fluid management and hydronic expertise to help operators improve and maintain cooling performance.
Support includes:
This integrated approach considers not only which fluid goes into the system, but how that fluid and the cooling infrastructure perform throughout the operational life of the data centre.
Castrol ON Primary Cooling Fluid DTX is specifically developed for Primary and Facility cooling loops within data centre infrastructure.
DTX delivers the thermodynamic and hydrodynamic performance advantages associated with ethylene glycol-based cooling fluids while providing the low-toxicity credentials associated with propylene glycol.
Its lower viscosity and enhanced heat transfer characteristics compared with conventional propylene glycol can reduce pumping demand and improve overall cooling efficiency.
DTX performance benefits
Conversion from conventional propylene glycol to DTX has demonstrated COP improvements of more than 10%, with comparable reductions in energy consumption and associated carbon emissions.
Improving cooling performance does not always require major plant replacement. Fluid selection, fluid condition and hydronic performance can all influence the amount of energy required to circulate coolant and reject heat. By analysing the fluid and the system together, DC Cooling Solutions can identify opportunities to:
For existing systems operating with conventional glycol, changing the thermal fluid can provide a comparatively straightforward route to improving cooling performance.
Even a high-performance thermal fluid needs to be correctly managed. Concentration changes, contamination, corrosion products, degradation and suspended solids can gradually affect heat transfer and hydraulic performance.
DC Cooling Solutions provide ongoing fluid monitoring and management programmes, combining on-site fluid sampling with laboratory analysis, reporting and corrective action where required.
Where problems are identified, DCCS can provide filtration, remediation, rebalancing or fluid replacement to help restore system performance.
Primary, Facility and Technical Cooling Loops increasingly operate alongside Direct-to-Chip and Immersion cooling technologies.
DC Cooling Solutions support thermal fluid performance across this wider cooling architecture — from the facility cooling infrastructure and heat rejection plant through to liquid cooling technologies within the data hall.
This provides operators with access to specialist fluids, fluid management and system optimisation expertise across the cooling environment.
For a more detailed explanation of how Primary, Facility and Technical Cooling Loops work, how glycol affects performance and how these systems interact with Direct-to-Chip cooling, visit our technical guide.
[Read: Primary Cooling Explained]
Planning a new data centre cooling system, reviewing an existing facility loop or looking to improve cooling performance?
UK: 0800 888 6848
Sorry, we need you to complete all the required fields before we can process your enquiry.
Copyright © 2026. All Rights Reserved Liquitherm Technologies Group Ltd. CASTROL and the Castrol logo are trade marks of Castrol Limited, used with permission.
Getting information - please wait.
