How Viega Press Technology Supports Modern Data Centers
As AI drives larger, higher-density data centers, cooling infrastructure is more critical than ever. In this article, you’ll learn:
Why liquid cooling is replacing air cooling
How press technology improves speed and safety
How cleaner piping enhances reliability
How press systems support modular construction
What sets Viega’s solutions and support apart
Artificial intelligence is quickly reshaping the data center industry, including the infrastructure needed to keep data centers up and running. As AI data center demand grows, facilities need cooling systems to manage higher heat loads, greater rack densities and nonstop operation. That means the piping systems behind these cooling systems have never been more important.
For engineers, contractors and data center owners, success depends on more than moving water from point A to point B. It requires clean, reliable, high-performance piping systems that can be installed quickly, minimize risk and support expansion. That's exactly where Viega press technology delivers.
Why Are Data Centers Switching to Liquid Cooling?
Traditional air cooling is not able to meet the cooling demands of GPU processors, which require liquid cooling to maintain critical operating temperatures. A lack of cooling can cause complete system failure in just over 1 second, as modern GPUs generate more heat than previous generations of servers, forcing facilities to adopt advanced liquid cooling strategies such as direct-to-chip cooling and immersion cooling.
Unlike conventional cooling, these systems rely on piping networks that constantly circulate liquid coolant. Even a small leak or contaminant can threaten uptime and damage sensitive equipment. As liquid cooling becomes standard, data centers need piping systems that are not only reliable but can also be installed quickly and simply.
Why Are Data Centers Choosing Press Over Welding?
For decades, welding, threaded and/or grooved pipe and tri-clamp connections have been the default connection method for mechanical piping. It’s a proven method, but it also introduces several obstacles that slow down data center construction schedules. The open flame needed for welding requires hot work permits and fire watches, plus it risks introducing contaminants into the cooling systems. All this means costly downtime and serious risk to crew members and equipment.
Viega press technology offers a different approach. Press connections are made using calibrated pressing tools that create consistent, repeatable joints in seconds. With no open flame, crews can install without hot work permits, fire and contamination risks or system shutdowns. The result is an installation completed up to 90% faster than welding, all with more consistent results and less impact on construction timelines.
How Does Press Technology Keep Cooling Systems Cleaner?
One of the biggest advantages of press technology is something many people never see: cleaner piping systems. In traditional threaded systems, the use of thread sealant, pipe dope or tape can cause serious damage if any debris or contaminants enter the liquid cooling system.
Press technology eliminates those sources of contamination entirely. Because no thread compounds are required, installers reduce the potential for debris entering critical cooling loops. This becomes especially important in technical cooling system (TCS) loops, where cooling systems operate alongside high-value computing equipment. Every step that reduces the risk of contamination helps protect system reliability and maximize uptime.
How Does Press Speed Up Modern Data Center Construction?
As demand for data processing increases, data centers are not only being built larger, but they’re being built on shorter and shorter timelines. Owners are under constant pressure to bring new systems online, while contractors face skilled labor shortages. To help meet these shortened deadlines, crews are turning to modular construction and offsite fabrication to speed up project delivery.
Press technology’s ability to simplify on-site installations, paired with its compatibility with prefabrication, allows crews to build piping assemblies in controlled environments before arriving on-site for final installation.
Why Do Data Centers Choose Viega for Critical Infrastructure?
When a facility operates around the clock, every component must earn its place. That's why Viega backs its press technology with extensive testing, third-party certifications and decades of real-world performance. Viega press systems are manufactured under ISO 9001 quality standards, tested to ASTM F3226 and validated through seismic testing that simulates a magnitude 9 earthquake.
Beyond testing, Viega offers more than 2,500 approved Commercial and Industrial applications across multiple material types, giving contractors a consistent installation method throughout the facility. Whether supporting chilled water, condenser water, heating and cooling loops or diesel fuel piping for backup generators, crews can rely on the same proven press technology across systems.
Combined with Engineering Services, specification support and a complete, one-tool system, Viega helps simplify everything from design through installation.
With Viega, professionals gain:
- Faster installation without hot work
- Consistent, repeatable press connections
- Cleaner cooling systems with fewer contamination risks
- Proven performance backed by third-party testing
- Complete press systems across multiple materials and applications
- Engineering expertise and specification support from project design through installation
As AI use calls for larger facilities, higher rack densities and more advanced cooling technologies, the infrastructure behind those systems must evolve. Viega is leading that evolution with faster installation methods, cleaner piping systems and the confidence that comes from proven performance.
FAQs
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Are pressed connections as durable and reliable as welded joints over a data center's lifespan?
Yes. Press connections create a consistent, reliable joint every time, reducing the potential for leaks down the road, and Viega’s Smart Connect® technology lets installers confirm every connection is fully pressed before the system goes live. Reliability is verified from day one, without the joint-to-joint variability that depends on an individual welder's skill level.
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Are Viega press systems compatible with coolants, including glycol and dielectric fluids?
Compatibility comes down to the sealing element, not the fitting alone. Viega offers EPDM as standard, with FKM and HNBR options, and the approved pressure and temperature range depends on the element used. ProPress® is already approved for applications such as chilled water and polyglycol 25% blends. For a specific glycol blend, dielectric or other specialty coolant, Viega Technical Services can confirm the correct sealing element before it's specified.
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What pipe materials and sizes does Viega press support for cooling loops?
ProPress connects copper and stainless steel from ½" to 4", and MegaPress® connects carbon and stainless steel across the same range, covering most chilled water, condenser water and hydronic cooling piping. Using one press method from gray space to white space keeps installation consistent instead of switching joining systems throughout the facility.
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Does switching from welding to press require special training or certifications?
No welding certification is required. Because a calibrated tool makes each connection, installers achieve consistent, repeatable results without needing to develop journeyman welding skills, which helps crews absorb the growing welder shortage. Viega also supports the transition with virtual or in-person training and engineering support.
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Does press cost more than welding?
Fittings can carry a higher upfront material cost, but the more useful comparison is total installed cost. Viega's own speed-to-market analysis puts press at roughly 0.15 man-hours per joint versus 2.5 for welding, and because press eliminates hot work, it also removes the fire watch, lowers skilled-labor requirements and cuts callbacks. These savings often offset the material price on labor-intensive or time-sensitive builds like data centers.