Application Reports in 2011

Established in 1924 Tsurumi is one of the most experienced pumpmanufacturers. Tsurumi is quality and durability.

Pumps for professional use.

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In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Rösrath treatment plant sand filter, GermanyThe Project:Maintenance of sand filter of Rösrath treatment

plant

Contractors:Rösrath treatment plant

Aggerverband

LS-Anlagentechnik

The Problem:Pumping of water with high levels of sand

sediment.

Our Solution:In January 2004, a 4-pole KRS2–80 agitator pump

was built into the sand filter:

- Average annual operating hours:

approximately 1320 hours

- Average annual sand moved:

approximately 90–100 t

- Wear/repairs: Replacement of the shaft

protection sleeve in October 2006

- Exchanged on 30.09.2010 due to internal

regulations, since then used as a backup.

3

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Max Aicher Recycling Meitingen steelworks, AugsburgThe Project:MAR Meitingen steelworks, part of the Aicher

group: storage of slag on the company's own

site.

Contractor:APS Augsburg – pump specialists

Tsurumi support:Christian Kulik (Field Sales Bavaria)

The Solution:

Using Tsurumi LHW-series high-pressuredrainage pumps, large amounts of water can bepumped onto the dump. The recycled water isused again and again. The Tsurumi high-pressurepumps used provide a pressure of 8–12 bar at amotor rating of 11–22 kW.

The Problem:

Recycling water is needed to cool the residualslag. The mud-laden water must be pumped byhigh-pressure drainage pumps through a sprinklersystem over the still-hot slag. The sprinklersystem requires a pressure of about 3 to 4 bar.

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In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Bad Wurzach treatment plant, GermanyThe Project:Eintürnen pumping station of the Bad Wurzach

treatment plant

Contractor:Hurter, Leutkirch

Tsurumi support:Ernst Mutzel

(Field Sales Baden-Württemberg)

The Problem:

The pumping station has always had problemswith clogging, and the treatment-plant workerssometimes have to clean the pumps severaltimes a week. Pumps from differentmanufacturers were tested, but with noimprovement in the situation.

The Solution:

Use of a type 100C43.7 cutter pump with atungsten-carbide blade built into the impeller. Thispump shifts large quantities of wastewater andshreds fibrous materials using the built-in cuttingmechanism. After ten months, there was not asingle case of clogging.

5

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Pond aeration, Hanau, GermanyThe Project:A stagnant body of water (pond) on business

premises is to be revitalized using a Tsurumi

submersible aerator.

Contractor: Rhein-Main-Umwelt GmbH, Hanau

Tsurumi support:Christian Oremus (Field Sales)

The Problem:

At the premises of Rhein-Main-Umwelt GmbHthere is a pond that was not cultivated or cleanedfor years. An attempt was made to feed in oxygenusing a submersible pump, but this failed due tothe size of the pond.

The Solution:

The pond is now undergoing deep aeration over alarger area using Tsurumi TRN-seriessubmersible aerators, and is consequentlybecoming saturated with oxygen. The goal is tohave stabilized the pond within four to six monthsto the extent that it can once again be populatedwith fish.

6

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Fountain, Munich, GermanyThe Project:Fountain system at the Insel Mühle hotel in

Munich

Contractor:Company Plötz

Tsurumi support:Christian Kulik (Field Sales)

The Problem:

Use of drainage-water pumps to supply afountain. A clean water pump cannot be used asthe pumped water is a dirty.

The Solution:

Use of a Tsurumi NK2–22 drainage pump (2.2 kW, 230 V) with a pumping head of 24 mand a type KTZ23.7 (3.7 kW, 400 V) with apumping head of 37 m.

7

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Reitersberg Tunnel, GermanyThe Project:Reitersberg Tunnel of the Ebensfeld–Erfurt ICE

rail link

Contractor:Alfred Kunz Untertagebau

Swietelsky Tunnelbau

Leonhard Weiss

Tsurumi support:Christian Kulik (Field Sales)

The Problem:

The 2975 m long tunnel is being cut using miningmethods. After the snow melted, the waterincidence in the tunnel suddenly rose to amaximum of 20 litres/second. The medium wasmade highly abrasive by its slurried stonecontent.

The Solution:

Massive drainage pump of types KTZ411 andKTZ611 (11kW) transport water over a distanceof 500m to 1000m. The KTZ series is the perfectcontractors’ pump due to its good performance.The replacement of wearing parts is very simple.After training by qualified Tsurumi staff, allmaintenance can be done independently on site.

8

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Overflow tank renovation, Marburg, GermanyThe Project:

An overflow tank, built in the 60s with 1700m2

capacity, needs a radical renovation due to

structural damage as well as modernization.

Commissioned by:Marburg wastewater board

Tsurumi support:Christian Oremus (Field Sales)

The Problem:

The renovation work would be compromised bythe arrival of large quantities of water in the formof precipitation in rainy weather conditions. Thelast slide valve separating the tank from thechannel would have to be opened. Theconsequence would be that already renovatedand incompletely dried areas would have to berelined, causing significant additional costs.

The Solution:

By using a Tsurumi submersible pump typeKRS1022, up to 12000 l/min of water can easilybe diverted around the tank through DN250 andfed back into the channel. This ensures that therenovation work will be protected from almost anyweather conditions.

9

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Drainage near the Rhone, Lyon, FranceThe Project:The project is based in the downtown of Lyon and at

the corner of a crossroads. Urban density is high and

the lanes are nearby. The site is located approximately

350m from the Rhone river. The work consists of

creating a well-point system about 1,2 m deep, so that

the soil reinforcement can be completed and the

excavation of bottom material be excavated properly

after the rubble have become dry.

The Problem:

The complexity of the project is caused by continuingreinforcement of the soil under the groundwater leveland excavation of rubble to allow the creation of asecond level of basement. All these works can only becarried out in a dry environment, it was necessary to

establish a system of continuous pumping during the work under this condition.

The Solution:Our client has completed the installation of strainer wells and four Contractors’ pumps Tsurumi KRS822

were implemented. They pump about 200 m3/h to 23m of head. The wells are connected by pipes of

DN150. This facility operates 24/7 and it is under constant surveillance. To date no action on the pumps

had to be done.

Zürich Canton Building Defence (GVZ), SwitzerlandThe Project:Efficient vacuum removal of hydrocarbons on

water surfaces by the chemical and oil spillage

task force of Zurich Canton

Contractor:Zurich Canton Building Defence (GVZ)

The Problem:

The use of conventional skimmers/surfacesuction devices is relatively complex as a suctionpump has to be installed in addition. Furthermore,

after installation, two devices have to be overhauled. Alternatives have been sought in order to makethe application more efficient.

The Solution:The Tsurumi FSP scum skimmer/surface suction device with three floats provides an elegant solutionfor this problem. The integrated pump makes stand-by operation and maintenance much easier andreduces time spent. The Zurich Canton Building Defence (GVZ) has equipped itself with type 8-FSP foruse in the event of an incident.

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In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Water treatment, Tyumen, RussiaThe Project:In the Tyumen region in northern Russia, drinking

water is obtained from groundwater. This requires

treatment, since the groundwater is heavily

polluted. The purification of groundwater using

traditional technology is very energy-intensive

and costly. This project was intended to reduce

the time for maintenance and operating costs by

using alternative technology.

Contractor:Resetilovs un Co, Moscow, Russia

Tsurumi support:Carsten Bode (Sales Engineer for Wastewater Products)

The Solution:

The decision was taken to replace the high-maintenance combination of compressor andtube aerators by a clog-free mechanical aerator.The choice was for two Tsurumi self-primingsubmersible aerators from the TRN series. The80TRN417 and 80TRN412 units have motorratings of 17 kW and 12 kW respectively,replacing the 100-kW compressor. Nomaintenance was needed during the 2-month trialrun, and no clogging occurred. With a reductionin the energy consumption of 65%, thepurification performance remained comparable.No foaming was recorded as a result of thesignificantly reduced air input.

The Problem:

The groundwater in the Tyumen region is heavily

contaminated with manganese, silica, dissolved

gases, organic compounds and especially a high

iron content. Originally, the groundwater has been

aerated by a combination of a compressor (100

kW) and tube aerators, and then filtered. The

highly contaminated medium led to clogging of

the aeration holes, whereby the aeration

efficiency falls off very quickly. As a result, the

aerators have to be cleaned at least once a

month with a great deal of effort, the filters

needed to be changed frequently because of

residual contamination and the rate of energy

consumption for aeration was extremely high at

100 kW. The large volume of air led to excessive

foaming, which hindered the subsequent

treatment process. The main objective of the

project was to reduce the time for maintenance

and operating costs involved in water treatment.

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In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear cantake place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the workingconditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.In this regard, please pay attention to our general conditons of sales (www.tsurumi.eu/english/GCS.htm) that we also send to you by mail on request.

Building site drainage, Limassol, CyprusThe Project:

Construction of a new drain near Limmasol

airport, Cyprus

Contractors:Loizos Iordanous Constructions Ltd.

D.I.S. Power Plant Ltd., Nicosia, Cyprus

The Problem:

Continuous drainage during construction. Amultifunctional pump that could easily pumpcombinations of groundwater, brine, mud and soilwas required.

The Solution:

Use of a KRS2–69 (max. 9 kW, 4250 l/min) incontinuous operation.The KRS-series consists of solid cast-iron 4-poleslurry pumps. This ensures optimum resistanceto salt corrosion and wear.

Tsurumi (Europe) GmbH

We reserve the right to change specifications and designs herein for improvement without prior notice. Our pumps are for professional use only. In the event thatTsurumi (Europe) GmbH have, in exceptional cases taken over, a manufacturer’s warranty, this entitles the end-user to assert remedy free of charge against Tsurumi(Europe) GmbH due to any defect to the product occurring during the guarantee period (see below), also then when the warranty claims against the seller do not orno longer exist. In the event of malfunction, which is attributable to the improper handling by the enduser, no guarantee claim shall arise. Further claims shall notresult from the warranty, unless if something to the contrary has explicitly been determined. The decision as to whether remedy is effected by way of replacement

or repair shall be at the choice of Tsurumi (Europe) GmbH. The claims shall be time barred after a period of three months after expiry of the guarantee period,however, not before expiry of the warranty period which is valid towards the seller. In the event of doubt, the warranty period shall correspond with the warranty

period which is valid between the end-user and his seller.

Heltorfer Straße 14D-40472 Düsseldorf

sales@tsurumi.euwww.tsurumi.eu

Tel.: +49-211-4179373Fax: +49-211-4791429

Germany Rösrath treatment plant sand filter Page 2 Rösrath treatment plantAggerverband LS–AnlagentechnikRebuilding of the sand filter at the Rösrath treatment plant

Germany Max Aicher Recycling steelworks, Meitingen Page 3APS, AugsburgStorage of slag on the company's own site

Germany Bad Wurzach treatment plant Page 4Hurter, LeutkirchStorage of slag on the company's own site

Germany Pond aeration, Hanau Page 5Rhein–Main–Umwelt GmbHRevitalization of a stagnant body of water

Germany Fountain, Munich Page 6PlötzFountain system in Munich

Germany Reitersberg Tunnel Page 7Alfred Kunz UntertagebauSwietelsky TunnelbauLeonhard WeissReitersberg Tunnel of the Ebensfeld–Erfurt ICE rail link

Germany Overflow tank renovation, Marburg Page 8Marburg wastewater boardRenovation of an overflow tank with 1700 m2 capacity

France Drainage near the Rhone, Lyon Page 9CE2A, Venelles, FranceDrainage in the centre of Lyon in the Rhone water table

Switzerland Zurich Canton Building Defence (GVZ) Page 9Vacuum removal of hydrocarbons from water surfaces

Russia Water treatment, Tyumen Page 10Resetilovs un Co, MoscowAeration of groundwater for drinking water supply

Cyprus Building site drainage, Limassol Page 11Loizos Iordanous Constructions Ltd.D.I.S. Power Plant Ltd., NicosiaConstruction of a new drain near the airport