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Over the years we worked together with amazing international companies all over the world.

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Strathclyde University

Achieved results

The University of Strathclyde’s building maintenance requirements have been streamlined thanks to a long-term commitment to eradicate contamination from all of its heating and cooling systems in partnership with Spirotech.<br><br><b>SIBS building</b><br><br>For the last seven years, Andy McWatt, Senior Mechanical Engineer at the University of Strathclyde, has specified only Spirotech product across all the university’s existing and new systems, as a result of excellent experiences with the brand; namely the transformation of the heating and cooling systems serving the university’s SIBS Robertson building. “The SIBS building is a very sensitive area of our prestigious Biomedical unit, and one where accurate temperature control<br>is vital,” explains McWatt. “In this particular building, we were having real issues with debris blocking the re-heat battery control valves, which was made worse by the fact that access to the valves is difficult. The hassle of having to access the network to be able to remove the contamination was both time consuming and costly, so the remedying of system problems in the SIBS building has saved us a tremendous amount of time and resource.”<br><br><b>Improved system functionality</b><br><br>The installation of Spirotech’s SpiroVent Superior in 2008 marked the beginning of the partnership with the company, which resulted in improved system functionality across the site and the wholesale removal of contamination issues across<br>both historic and new building stock.

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Wolverhampton University

Achieved results

In 2011, the University of Wolverhampton embarked on a multimillion pound investmentin a state-of-the-art Combined Heat andPower (CHP) system. The goal was to slashannual energy costs, reduce carbon emissionsby a signifi cant amount and future-proofthe university energy network.<br> <br><b>Heat transfer problems</b><br><br>In two key buildings, the heating system had been performingpoorly for some time. Although the MC building is one of thenewest on the campus, heat transfer was poor and there werewidespread system malfunctions. “We identified significantproblems with contamination - filters in the chilled beams andin the air handling units were badly blocked, resulting in severelyrestricted flow,” explains Stephen Cocks, University ofWolverhampton’s Energy Manager. “In MA, dated plant rooms were in real need of investment. Thismeant installing new boilers and ensuring that they would workalongside the older parts of the system that couldn’t be replaced.The key challenge here was to hydraulically separate the oldboilers from the new and protect the plate heat exchangers.”<br><br><b>Excellent reputation<br><br></b>“We installed Spirotech’s SpiroTrap dirt separator in 2012,and a SpiroVent Superior vacuum degasser unit one year later,due largely to the excellent reputation of the company in theUK and also as a result of an Association of University Engineers (AUE) presentation.”<br>

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Mariënacker

Achieved results

In 2007 elderly care home Nij Mariënacker inWorkum, the Netherlands was fitted out with aheating and cooling system using geothermalheat. Unfortunately, the system, and the heatpump in particular, didn’t work as intendedfrom the outset.<br><br><b>Temperature problems</b><br><br>The Nij Mariënacker complex has a total area of 9,500m2 spreadover several floors. Its new, complex climate system immediatelyhad issues with heat distributions, jammed thermostat valves,clogged heat exchangers and underfloor heating blockages. Thisled to temperature problems during the summer as well as thewinter. Two boilers that had been provided as backup were beingused continuously. Several attempts to solve the problems hadbeen made, without success, before contacting Spirotech.<br><br><b>Integrated approach</b><br><br>First, Spirotech’s specialised laboratory carried out a completesystem scan, including analysis of system water and make-upwater. A comprehensive report was provided, advising on a totalsolution consisting of an ideal mix of air separators, dirt separators,additives and support services. In many places accumulated dirtparticles and calcium deposits were causing a multitude ofproblems. Extensive flushing also helped restore heat transfer.Spirotech not only took care of analysis and recommendations,but also provided the hardware and supervised installation,commissioning and service. <br>

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MTU

Achieved results

MTU Maintenance is a subsidiary of MTUAero Engines, Germany's leading enginemanufacturer. The company specialises inrepair and maintenance of medium and largecommercial engines. Fast organic growth hadresulted in expansion of mixed heating andcooling system installations.<br><br><b>Fighting corrosion</b><br><br>A plant optimisation plan was developed with pump manufacturerPumpen Binek. The plant was divided into five sections, with verydifferent needs for cooling and refrigeration circuits in specificprocess areas, as well as heating and process heat. Originally, somecorrosion inevitably appeared whenever air was manually releasedfrom the system. In all sections, it was necessary to remove existingcorrosion and reliably prevent new particles from forming.<br><br><b>Meticulous prepatory work</b><br><br>This was to be achieved with Spirotech’s dirt separation andvacuum degassing solutions. During several weeks of thoroughpreparation, the finer points of the installation and positioning ofthe devices were determined. “This meticulous preparatory workreally paid off,” says Gino-Valerio Bruno of Pumpen Binek.“Our audit has shown that optimisation has brought highersystem reliability and lowered costs making this a thoroughlysuccessful implementation.”<br><br>

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Mainova

Achieved results

Mainova AG, one of the largest regional energy suppliers in Germany chose SpiroTrap dirt to provide optimal, innovative protection for their Frankfurt power plant.<br><br><b>Trouble-free operation</b><br><br>This represents a relatively small investment which enablestrouble-free operation of installations and protects expensive,dirt-sensitive components such as pumps and valves. These andother system components must be protected from dirt particlecontamination, as repairs and downtime have significant financialimplications. For power utilities, the risk of downtime interruptingthe supply of energy is an especially big concern. <br><br><b>Optimal, innovative protection</b><br><br>Mainova AG,one of the largest regional energy suppliers in Germany choseSpiroTrap dirt separators to provide optimal, innovative protection.SpiroTrap DN400 (650 m3/h) and DN500 (1300 m3/h) dirtseparators were installed at Mainova's newly built Nordweststadtpumping station. Both use Spirotube as a separating element, which has also played a big part in realising the excellent results.<br>

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Riepen

Achieved results

Placement of a SpiroVent deaerator andSpiroTrap dirt separator in a Dutch home, builtin the nineties in the Dutch town of Goor, haveled to energy savings as high as 20%. Savingswere clearly documented because the residenthas been monitoring energy consumptionaccurately for several years.<br><br><b>Payback</b><br><br>This made it possible to create accurate overviews, comparing,for example, a very cold winter to a mild one. Taking into accountthese factors, gas consumption for heating this propertydecreased by 20%. It soon became clear that the purchase andinstallation of the SpiroVent and SpiroTrap had been earned backin a short period. In fact, a harsh winter can make payback withinone year possible.<br><br><b>Better protected setup</b><br><br>“We didn’t expect the energy usage to drop so sharply,” say thehomeowners. “Apart from the significantly lower gas bill, our setupis better protected against failures and breakdowns and all theradiators now heat up completely.”

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Trudo

Achieved results

Together with Spirotech and installer Van denHoff Installatiebedrijf Eindhoven, Trudo housingcorporation carried out a large-scale study in152 homes. Over a period of five years, theeffects of placing deaerators and dirt separatorsin heating systems was extensively measured.<br><br><b>Extending maintenance cycles</b><br><br>Trudo is a medium-sized housing corporation in Eindhoven, the Netherlands, which focuses primarily on social housing. “The areain which Trudo can realise the biggest savings is throughextending maintenance cycles,” explains Sjack Vissers, TeamLeader Real Estate Maintenance, Trudo housing corporation.“Joining together knowledge and expertise has contributed torealising our goal of lowering maintenance costs.”<br><br><b>Fewer failures, lower maintenance costs</b><br><br>Between 2009 and 2014, all service calls and changes werelogged and water samples were taken at regular intervals tomeasure the effect of the installed Spirotech solutions: SpiroVentdeaerators continuously remove free air and microbubbles fromthe system fluid, SpiroTrap dirt separators remove magnetic andnon-magnetic dirt particles.<br><br>The study has demonstrated that the number of service visitsduring the five year period was greatly reduced by fitting Spirotechdeaerators and dirt separators in heating systems. In addition,there is clear evidence that the acidity of system fluid rises at a farslower pace thanks to the Spirotech products, reducing the risk ofcorrosion. At the outset of the study, Trudo was receiving anaverage of 1.5 calls about system failures per tenant over afive-year period. <br>

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Deibel

Achieved results

When contracted to install and maintain the heatingsystem for a residential complex (7 apartments), Deibel GmbH from Heusenstamm near Frankfurt,Germany wanted to make absolutely sure therewould be no operational difficulties.<br><br><b>Spirotech solutions</b><br><br>The company opted for an integrated selection of Spirotechproducts to ensure safe and downtime-free operation in the boilerroom as well as the apartments. Furthermore, the Spirotechsolutions prevent expensive repair costs.<br><br><b>System protection</b><br><br>Thanks to SpiroTop and SpiroVent deaerating solutions, air in thesystem water is reduced to a minimum. The condensing unit heatexchanger is protected from contamination by a SpiroTrap dirtseparator. Air is removed from the solar-powered system by meansof a SpiroVent Solar AutoClose to prevent system failure. It alsoprotects against loss of pressure caused by steam discharge.

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Beijing District Heating Group

Achieved results

In a district heating installation held by theBeijing District Heating Group, air intake andblockages resulted in a need for frequentmanual venting. The 20-year-old system alsorequired frequent refilling. This meant large flowfluctuations, low NPSH and risk of cavitation.<br><br><b>Savings and further benefits</b><br><br>Following extensive measurements a SpiroVent Superior S6vacuum degasser was introduced in one large city heatingsubstation, to remove air blockages. This allowed the speed of thepump to be lowered drastically, while the desired flow rate wasachieved without difficulty. The result: lower flow resistance and a31% total saving on the electricity consumption of the pumps.Degassing brings several further benefits for the system: lesswear, less malfunction and an associated reduction in costs.

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Stadtwerke Giessen

Achieved results

In various district heating systems operated byStadtwerke Giessen, excess air was beingtrapped, partly as a result of network extension. With Spirotech vacuum degassers, it becamepossible to enable trouble-free operation.<br><br><b>Problems with air</b> <br><br>Stadtwerke Giessen provides electricity, gas, water and districtheating to private and business clients. These systems arecontinuously adapted in line with current demand. Extension ofthe network and realisation of new connections resulted in airrepeatedly entering into the district heating system or discretenetworks. This didn’t only result in malfunctions, but theresponsible technicians were also concerned about acceleratedair-induced corrosion in the pipeline network.<br><b><br>SpiroVent Superior S6A vacuum degasser</b><br><br>To avoid these side-effects the decision was made to introducea vacuum degasser at several key contact points. Spirotechprovided support to Stadtwerke Giessen with consulting servicesas well as commissioning the selected SpiroVent Superior S6A.The positive effect of installing the equipment soon becameapparent in the deaeration performance.

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Delhi Metro

Achieved results

The state-owned Delhi Metro Rail CorporationLtd. (DMRC) operates the Delhi Metro and isinvolved in the planning and implementation of awide variety of rail projects across India. TheDelhi Metro system has been in operation formore than a decade.<br><br><b>Solutions for new underground stations</b><br><br>Whilst planning a series of new stations, DMRC were in the processof changing from centrifugal separators, which were a standardpart of underground station specifications till then, to deaerators.Following a series of presentations, DMRC and its consultantsselected Spirotech to provide system water conditioning solutionsfor 11 new underground stations. <br><br><b>Helping DMRC achieve its goals</b><br><br>Each station is now beingequipped with a SpiroVent Superior vacuum degasser and aSpiroCombi deaerator and dirt separator, and further units may beadded. “We are now able to get dirt out very, very quickly,” saidone spokesperson for DMRC. The first installations are up andrunning and have been successfully helping DMRC achieve itsgoals of lower energy consumption and greater efficiency.

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