Efficient cooling in data centers is essential to ensure the continuity of digital services that power the modern economy. These invisible infrastructures make everything from email and cloud storage to streaming and AI applications possible. Their proper operation depends on constant and efficient thermal management to maintain 24/7 uptime of IT equipment.
However, the exponential growth in digital demand comes at a cost: high energy consumption and massive heat generation. In this context, cooling systems are not only critical for the safe operation of servers, but they also account for a significant portion of a data center’s total energy use.
While large equipment such as chillers and cooling towers are highly visible, another essential element often goes unnoticed: the piping networks that transport thermal fluids. The overall system efficiency depends heavily on hydraulic design, material selection, and proper thermal insulation.
- Why Is cooling a challenge in data centers?
- Thermal insulation: a key to energy efficiency
- Pre-insulated pipes: an integrated solution
- Technical materials: the value of PPR CT
- Regulatory compliance and certifications
- Direct liquid cooling: the immediate future?
- Urban integration: reusing waste heat
- Piping and sustainability: beyond insulation
Why Is cooling a challenge in data centers?
Under normal conditions, a data center converts nearly all the energy it consumes into heat. If this heat is not evacuated continuously and efficiently, it compromises the thermal stability of equipment, reducing performance and potentially causing critical failures.
The most common systems use chilled water, glycol mixtures, or direct liquid cooling. These fluids must circulate constantly through kilometers of piping—from cooling units to server racks and back again. A poorly designed or insulated hydraulic system can lead to thermal losses, condensation, corrosion, or operational interruptions.
Our strategy is based on the vision that sustainability must be integrated into every stage of the value chain, from infrastructure design to its implementation in critical environments such as data centers.
Thermal insulation: a key to energy efficiency
Energy efficiency doesn’t rely solely on large systems; accumulated thermal losses in piping networks pose a critical issue. Poorly insulated lines can result in:
- Minimizing environmental impact: we design and promote infrastructures that reduce energy and water usage, focusing on resource reuse and recycling.
- Adopting the circular economy: we implement strategies that extend the lifecycle of materials and reduce waste, ensuring that every resource is used to its fullest potential.
- Innovation in water and energy management: we believe in advanced solutions that optimize the use of natural resources, aligning business objectives with global climate commitments.
By contrast, properly insulated piping maintains stable fluid temperatures, reduces system stress, and significantly extends the lifespan of the entire installation.
Pre-insulated pipes: an integrated solution
Pre-insulated pipes consist of three key layers:
- Inner pipe, made of technical materials (e.g., PPR CT or crosslinked polyethylene), offering high thermal and chemical resistance.
- Thermal insulation, typically rigid polyurethane (PUR) foam, with low conductivity and long-term performance.
- Protective outer jacket, made of corrugated aluminum or polyethylene, resistant to UV rays, impact, and weathering.
Main benefits:
- Consistent thermal performance throughout the entire hydraulic network
- Faster installation: factory-applied insulation ensures quality and reduces errors
- Lower risk: prevents condensation and protects against external factors
- Versatility: suitable for indoor, outdoor, and underground installations
In data centers—where 24/7 uptime is non-negotiable—these systems offer superior reliability compared to traditional on-site insulated piping.
Technical materials: the value of PPR CT
The choice of inner pipe material is another decisive factor. In technical applications, reinforced polypropylene random copolymer (PPR CT) has emerged as a reliable alternative to metals for several reasons:
- Low thermal conductivity, enhancing insulation efficiency
- Chemical inertia, compatible with glycols and disinfection treatments
- No corrosion, ideal for humid or chemically aggressive environment.
- Structural durability, even under thermal and pressure variation
- Thermofusion welding, ensuring leak-proof joints without mechanical fittings
PPR CT offers a long service life, minimal maintenance, and high reliability in HVAC and refrigeration networks.
Regulatory compliance and certifications
Using pre-insulated systems and technical materials like PPR CT not only enhances operational performance but also contributes to meeting energy efficiency standards:
- National regulations (such as RITE in Spain) mandate minimum thermal insulation levels.
- Sustainability certifications like LEED, BREEAM, or ISO 50001 value efficient, durable, and traceable systems.
- The use of recyclable materials or those with Environmental Product Declarations (EPD) helps reduce the building’s carbon footprint.
Choosing the right hydraulic network is both a technical and strategic decision for sustainable data center design.
Direct liquid cooling: the immediate future?
As servers grow in density and power, Direct-to-Chip and immersion cooling systems are gaining ground over air-based solutions.
In such cases, the hydraulic network design becomes even more critical:
- Must withstand higher temperatures and pressures
- Material compatibility with specialized coolants is essential
- System integrity and leak prevention become top priorities
Pre-insulated piping made of technical plastics provides the necessary thermal and mechanical resistance for this new generation of cooling systems.
Urban integration: reusing waste heat
One of the most sustainable strategies for data center cooling is reusing waste heat. In countries like Sweden, Finland, and the Netherlands, this heat is redirected to district heating networks, delivering energy to nearby buildings or industries.
To make this possible, the piping infrastructure must ensure:
- Efficient heat transport, minimizing losses
- Thermal and mechanical compatibility, allowing bidirectional flow
- Durability and traceability of materials in urban environments
Pre-insulated piping—with its superior insulation and resistance—meets all these requirements and supports circular strategies.
Piping and sustainability: beyond insulation
In addition to improving energy efficiency, piping systems support ESG strategies in data center operations:
- Recyclable materials, with low carbon impact
- Modular and prefabricated design, reducing waste and installation time
- Low-maintenance infrastructure, minimizing future interventions
An efficient hydraulic network is a long-term investment that directly contributes to a building’s sustainability.
Conclusion
Data centers are essential for modern life, but they must also contribute to climate solutions. Efficient and sustainable cooling doesn’t begin with large equipment—it starts with the invisible systems that move thermal energy.
Using pre-insulated pipes made from technical materials like PPR CT helps reduce energy losses, prevent condensation, meet regulations, and extend system life—all without compromising operational reliability.
In data center cooling, the difference isn’t always visible… but it’s there. And it starts with the pipes.
