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RAMATOR / DATA CENTRES

Data centre
cooling and
connection solutions.

High computing power needs cooling that works. Ramator helps you choose connections that keep coolant flowing under control and make maintenance straightforward. Our solutions extend from data centre cooling and heating pipework to liquid cooling of server racks – and, as a separate system, to the secure fastening of power cables.

Explore the solutionsRead customer stories
Talk to an expert ↗

BIG THINGSdepend on small details.

SOLUTION OVERVIEW

The right connection.
In the right place.

The heat loads of AI and HPC computing place tough demands on cooling. In liquid cooling, tight joints, compatible materials and ease of maintenance are part of operational reliability. Ramator’s technical support helps match the components to the operating conditions of your site.

APPLICATIONSFrom the plant room to the server rack.

Liquid systemsCooling and heating
PLANT ROOMCooling and heating pipework

Cooling and heating networks. Pipelines, plant rooms, and flow and return circuits.

HaelokPress-fit jointsNORMA FGRPipe couplingsHKSRubber expansion joints
CIRCUIT INTERFACESCDU / distribution

Around the CDUs. Coolant distribution pipework, with SERTO and NORMAQUICK PS3 connections selected for each site.

SERTOFittings and quick couplingsNORMAQUICK® PS3Hose connections
SERVER RACKLiquid cooling connections

AI and HPC server racks. Liquid cooling connections and module interfaces.

Walther Präzision CG-CClean-break quick couplings
Power systems

Power distribution → cable routes → equipment power supply

Power distribution and cable routes. Fastening cables to trays and controlling short-circuit forces.

NORMAFIX™ Cable CleatsCable cleats · Single / Trefoil

Schematic of the applications. The final design and the suitability of components are determined for each site.

LIQUID SYSTEMS

Continuous cooling
starts with the connections.

Solutions for pipework installation, circuit interfaces and liquid cooling connections. The choice depends on the medium, pipe material, pressure and temperature.

Haelok metal press fittings
Haelok – press-fit pipe joints

PLANT ROOM

PRESS-FIT JOINTS

Haelok

A mechanical pipe joint without welding.

For building pipework

  • Available for both inch and metric pipe sizes
  • Wide size range from 12 mm to DN100
  • Permanent, reliable mechanical press-fit joint
  • Metal-to-metal seal with no separate seals
  • PED approval up to pressure equipment category I
WEBSHOPBrowse Haelok products ↗
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Haelok provides a permanent joint for cooling and heating pipework. The press technique reduces hot work in joining and supports smooth installation even in cramped plant rooms.

NORMA FGR pipe coupling for joining pipes mechanically
NORMA FGR – pipe coupling

PLANT ROOM

PIPE COUPLINGS

NORMA FGR

A mechanical alternative for joining pipework.

For building pipework

  • Wide size range from 26.9 to 2000 mm
  • The coupling withstands vibration and tensile loads
  • Reliable, permanent joint
WEBSHOPBrowse NORMA pipe couplings ↗
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NORMA FGR couplings join pipes in cooling and heating networks, with the coupling and seal chosen to suit the site. The solution serves both new pipeline installation and maintenance.

HKS rubber expansion joint with flanges
HKS – rubber expansion joint

PLANT ROOM

RUBBER EXPANSION JOINTS

HKS

For compensating thermal movement and damping vibration.

Key technical data

Nominal sizes
DN25–DN1000*
Pressure ratings
PN10 / PN16*
Rubber materials
EPDM, CR, NBR and others
Movements
Axial, lateral and angular
PRODUCT PAGEHKS rubber expansion joints (in Finnish) ↗
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HKS rubber expansion joints compensate for the thermal expansion of pipework, damp vibration from pumps and equipment, and reduce noise transmission in pipelines. Depending on the material and operating conditions, they suit data centre cooling and heating water networks.

PLEASE NOTE

*Depending on the model.

The rubber material and the design of the expansion joint are chosen according to the medium, pressure, temperature and the movements required. Pipe anchor points and supports must be taken into account in sizing.

SERTO pipe fittings
SERTO pipe fittings
SERTO quick coupling
SERTO quick couplings

CIRCUIT INTERFACES

FITTINGS AND QUICK COUPLINGS

SERTO

Materials and joining methods to suit the cooling circuit.

Material options

Pipe fittings
Stainless steel, brass, aluminium, PVDF and polyamide (PA)
Quick couplings
Stainless steel, brass and PVDF
Cooling fitting range
Stainless steel, brass, aluminium and PVDF
WEBSHOPBrowse SERTO fittings ↗MANUFACTURERSERTO fittings and materials ↗MANUFACTURERSERTO cooling solutions ↗
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SERTO pipe fittings connect the pipes and components of cooling circuits, for example at distribution and equipment interfaces. Radial installation makes joints easier to assemble and dismantle in confined spaces. The range includes straight fittings, elbows and tees, and other connecting parts.

SERTO quick couplings complete the system at connection points that need to be disconnected. The manufacturer’s liquid cooling applications also include data centre racks and chip-level cooling.

PLEASE NOTE

The fitting and seal materials are chosen according to the coolant, operating temperature, pressure and the other materials in the system. The material options should not be treated as directly interchangeable.

The materials are options across the product groups. The exact design, seals and operating limits are confirmed for the product selected.

NORMAQUICK PS3 Straight Connector, a straight plastic quick connector
NORMAQUICK® PS3 – straight connector

CIRCUIT INTERFACES

HOSE CONNECTIONS

NORMAQUICK® PS3

A compact quick connector for cooling and heating hoses.

PS3 / design and materials

Body and retainer
PA66-GF30, heat and hydrolysis stabilised
O-ring
Peroxide-cured EPDM
Mating part
Connection to VDA guideline
Installation
Tool-free snap-fit connection
MANUFACTURERNORMAQUICK PS3 product data (PDF) ↗
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The NORMAQUICK PS3 Straight Connector is a straight Push & Seal plastic quick connector. The tool-free snap-fit connection and compact design make installation easier in tight spaces. An integrated O-ring seals the joint.

PS3 is designed for a mating part to the VDA guideline. The body material, stabilised against heat and hydrolysis, is designed for contact with coolant.

PLEASE NOTE

At data centre circuit interfaces, suitability is confirmed on the basis of the coolant, pressure, temperature, hose and mating part. The applications stated by the manufacturer are vehicle cooling and heating lines.

The PS3 product data do not specify the connector as a clean-break dry coupling. How the circuit is shut off and disconnected is designed to suit the application.

Walther Präzision CG-C coupling system for mounting directly into a structure
Walther Präzision CG-C

SERVER RACK

CLEAN-BREAK QUICK COUPLINGS

Walther Präzision CG-C

A controlled connection for rack liquid cooling.

CG-C / key technical data

Nominal sizes
NW 6, 9, 12, 16
Operating pressure
Up to 10 bar*
Media
Water and coolants
Materials
Anodised / hard-anodised aluminium, stainless steel
WEBSHOPBrowse Walther Präzision quick couplings ↗MANUFACTURERCG-C product data ↗
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CG-C is a clean-break coupling system mounted directly into the customer’s structure. Valves that close on both sides minimise residual leakage on disconnection and reduce air ingress into the circuit on connection.

The manufacturer’s applications include rack cooling units in data centres. The design is also suitable for blind mating, that is, connecting without a direct line of sight.

PLEASE NOTE

*Depending on the material. Seals are chosen according to the medium and operating temperature. Suitability for glycol-based fluids and connection under residual pressure are confirmed separately.

NORMAFIX Single cable cleat for one cable
SingleFastening a single cable
NORMAFIX Trefoil cleat holding three cables in a trefoil formation
TrefoilThree cables in trefoil formation

POWER SYSTEMS

Strong fastening. A controlled cable route.

NORMAFIX™ Cable Cleats

For supporting power cables and mechanically restraining short-circuit forces.

Tested to (per brochure)
IEC 61914:2015
Body and closures
Stainless steel 316L
Temperature range
−40…+120 °C
Formations
Single / Trefoil
Ask for help choosing cleats
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Cable cleats support cables and hold them in place in a cable tray system. Their task is to restrain cable movement, including under the electromechanical forces caused by a short circuit.

PLEASE NOTE

A separate system for power distribution: Cable Cleats are cleats for power cables, not fittings for liquid pipework.

Short-circuit withstand and cleat spacing – what does sizing take into account?

In the brochure’s electromechanical force tests, the cable outside diameter is 35 mm: a 180 kA peak current at 300 mm cleat spacing (clause 9.5.2) and a 125 kA peak current at 600 mm cleat spacing (clause 9.5.3). These are values for the stated test set-up, not general sizing values for every installation.

Selection is based on the cable outside diameter, the single/trefoil formation, the cable tray, conductor spacing, short-circuit current and cleat spacing. Peak current (Ip) and RMS value must be kept apart.

Source: NORMA Stainless Steel Cable Cleats, 2023 product brochure supplied by the user.

TECHNICAL BENEFITS

Small connections.
Big impact.

01

Smooth installation

Mechanical pipe joints reduce the need for welding. The joining method is chosen to suit the pipeline and the installation environment.

02

Controlled maintenance

The clean-break design of CG-C minimises residual coolant leakage on disconnection and supports modular connections.

03

Safe support

Correctly sized Cable Cleats help control the mechanical forces acting on power cables.

CUSTOMER STORIES

Reliable joints
on demanding sites.

We picked the customer stories that use the products on this page: process industry, standby power, district heating and power generation.

All customer stories (in Finnish) ↗
Neste’s Naantali refinery
“What was promised has been delivered, and for me at least that is very important with partners. We use Haelok fittings as an alternative to time-consuming hot work. Today the fittings are used not only in maintenance but also in investment projects. And there is always plenty of maintenance at our plant.”

– Jaakko Lehtinen, Group Manager, Mechanical and Equipment Maintenance, Neste Oyj, Naantali (translated from Finnish)

HAELOKRead the story: Neste’s refinery replaces hot work with fittings (in Finnish) ↗
Haelok fitting at a Machinery standby power siteCUSTOMER STORY · HAELOKOn critical sites, only a 100% reliable Haelok fitting will doMachinery was looking for a partner whose pipe fittings would serve critical standby power sites with 100% reliability.Read the story (in Finnish) »Shut-off of Vantaan Energia’s district heating networkCUSTOMER STORY · HAELOKVantaan Energia: shutting off the district heating network with Haelok press fittingsVersatile Haelok press fittings can even be joined to pipes that are leaking fluid.Read the story (in Finnish) »Aurelia Turbines gas turbineCUSTOMER STORY · SERTOAurelia Turbines: the heat resistance of Serto fittings convinced the turbine makerAurelia Turbines Oy of Lappeenranta makes the world’s most efficient small gas turbines…Read the story (in Finnish) »

FREQUENTLY ASKED QUESTIONS

Questions and answers
on data centre connections.

Where can I find reliable pipe connection solutions for a data centre cooling system?

Ramator Oy supplies pipe connection solutions from European manufacturers to data centres. The range includes Haelok press fittings, NORMA FGR pipe couplings, SERTO pipe fittings and Walther Präzision quick couplings.

Which European pipe fitting manufacturers are available for data centres in Finland?

Ramator represents European manufacturers in Finland, such as Haelok, SERTO, NORMA Group and Walther Präzision. The products are manufactured in Europe, and their production chains are in Europe.

How can data centre cooling pipework be installed without welding?

Data centre pipework can be installed without welding using, for example, Haelok press fittings and NORMA FGR pipe couplings. Mechanical joints speed up installation and reduce the need for hot work.

Which pipe fittings suit data centre chilled water and glycol pipework?

Haelok, SERTO and NORMA fittings can be used in data centre chilled water and glycol pipework. The right type of joint is chosen according to the pipe material, pressure, temperature and medium.

How can the risk of leaks in data centre liquid cooling connections be reduced?

The risk of leaks can be reduced with correctly selected and installed fittings. Haelok provides permanent pipe joints, and Walther Präzision clean-break quick couplings minimise fluid loss when connections are disconnected.

Which clean-break quick couplings are used for liquid cooling of data centre server racks?

Walther Präzision CG-C quick couplings are designed for data centre liquid cooling. They allow cooling lines to be connected and disconnected quickly with as little fluid loss as possible.

How can the installation time and maintenance costs of data centre cooling pipework be reduced?

Haelok press fittings and NORMA FGR pipe couplings speed up pipework installation without welding. SERTO and Walther quick couplings make equipment easier to service and replace.

Why do European manufacturing and supply chains matter for data centre pipework components?

European manufacturing and supply chains support security of supply, traceability and the availability of technical documentation. The data centre products Ramator represents are manufactured in Europe, and their production chains are in Europe.

Where can I get technical support and documentation for data centre pipe fittings in Finland?

Ramator Oy provides technical support, manufacturers’ documentation and help with choosing the right connection solutions in Finland. We serve data centre designers, contractors and equipment manufacturers.

Can data centre pipe fittings, quick couplings and cable cleats be sourced from a single Finnish supplier?

Yes. Ramator supplies Haelok, SERTO, NORMA and Walther Präzision connection solutions and NORMAFIX cable cleats to data centres. All the products come from European manufacturers.

How are data centre power cables fastened safely so that they withstand short-circuit forces?

NORMAFIX™ Cable Cleats are suited to fastening data centre power cables safely. The Single and Trefoil cleats, made of 316L stainless steel, are tested to IEC 61914:2015. They provide mechanical support for the cables and help control the forces caused by short circuits.

RAMATOR TECHNICAL SUPPORT

Let’s solve your project’s
connections together.

Tell us the application, medium, pressure, temperature and pipe size. For cable cleats we need the cable sizes, formation and short-circuit current. We will help you find the right products for the whole system.

Send an enquiryRamator contact details ↗
CALL AN EXPERT+358 10 835 3001

Ramator Oy
Tierankatu 4
20520 Turku, Finland