1063 penstocks&gates en

PENSTOCKS & GATES

VA TECH HYDRO

Water. Penstocks. Gates.

www.vatech-hydro.com

Penstocks & Gates16-Seiter 28.01.2002 13:13 Uhr Seite 17

Adv-Lppnkt-lIbw-nVB--p-GSl-dv-Lppnkt-lIbw-nVB--p-GSl-

Decades of experience and a spirit of

innovation - a combination promising

success

VA TECH HYDRO is, with regard topenstocks and gates, the legal successorof the former companiesVOEST ALPINE / VA TECH VOEST MCEof Austria,

SULZER ESCHER WYSS/SULZER HYDRO andACMV / HYDRO VEVEY,both from Switzerland. All the know-how and experience gainedin decades by these companies is nowavailable from one single source.

Within VA TECH HYDRO the center ofcompetence for penstocks and gates is inits subsidiary in Linz, Austria, where thefabrication of these products was alreadylaunched in 1947.

To date, our international record lists some770 hydropower plants worldwideequipped with penstocks and gates fromVA TECH HYDRO. Our design for hydraulic steel structuresguarantees state-of-the-art technology

and top quality.The world over,barrages, spill-ways, bottomoutlets, intakestructures andlocks are builtwith our know-how and standfor save and re-liable operation.Time and againwe have alsoproved ourcompetence inthe design,fabrication andinstallation ofpenstocks.Our programin this field

covers exposed

penstocks, steel

tunnel linings,

bi-/trifurcators and manifold systems, pipe

bridges. With regard to penstock fabrica-

tion at site, VA TECH HYDRO is by far

market leader in this technology.

Permanent development to secure thetechnological lead has always been giventop priority in VA TECH HYDRO. Needlessto say, our products are subject to themost stringent international qualitystandards.

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INNOVATION AND EXPERIENCE


Argentina - Australia - Austria - Bolivia - Brasilia - Cameroon - Cana-da - Chile - China - Colombia - Costa Rica - Ecuador - Egypt - El Sal-vador - Fidschi - Finland - Germany - Greece - Guatemala - Honduras- India - Indonesia - Iraq - Iran - Ireland - Japan - Jugoslawia - Laos -Lebanon - Luxembourg - Malawi - Malaysia - Mexico - Myanmar - Ne-pal - Nigeria - Norway - Pakistan - Papua New Guinea - Peru - Philip-pines - Puerto Rico - Romania - South Africa - Spain - Sudan - Suri-nam - Taiwan - Tanzania - Thailand - The Netherlands - Tunisia - Tur-key - Uruguay - USA - Venezuela - Zaire - Zambia - Argentina - Aus-tralia - Austria - Bolivia - Brasilia - Cameroon - Canada - Chile - China- Colombia - Costa Rica - Ecuador - Egypt - El Salvador - Fidschi - Fin-land - Germany - Greece - Guatemala - Honduras - India - Indonesia -Iraq - Iran - Ireland - Japan - Jugoslawia - Laos - Lebanon - Luxem-bourg - Malawi - Malaysia - Mexico - Myanmar - Nepal - Nigeria - Nor-way - Pakistan - Papua New Guinea - Peru - Philippines - Puerto Rico- Romania - South Africa - Spain - Sudan - Surinam - Taiwan - Tanza-nia - Thailand - The Netherlands - Tunisia - Turkey - Uruguay - USA -Venezuela - Zaire - Zambia - Argentina - Australia - Austria - Bolivia -Brasilia - Cameroon - Canada - Chile - China - Colombia - Costa Rica- Ecuador - Egypt - El Salvador - Fidschi - Finland - Germany - Greece- Guatemala - Honduras - India - Indonesia - Iraq - Iran - Ireland - Ja-pan - Jugoslawia - Laos - Lebanon - Luxembourg - Malawi - Malaysia- Mexico - Myanmar - Nepal - Nigeria - Norway - Pakistan - Papua NewGuinea - Peru - Philippines - Puerto Rico - Romania - South Africa -Spain - Sudan - Surinam - Taiwan - Tanzania - Thailand - The Nether-lands - Tunisia - Turkey - Uruguay - USA - Venezuela - Zaire - Zambia- Argentina - Australia - Austria - Bolivia - Brasilia - Cameroon - Cana-da - Chile - China - Colombia - Costa Rica - Ecuador - Egypt - El Sal-vador - Fidschi - Finland - Germany - Greece - Guatemala - Honduras- India - Indonesia - Iraq - Iran - Ireland - Japan - Jugoslawia - Laos -Lebanon - Luxembourg - Malawi - Malaysia - Mexico - Myanmar - Ne-pal - Nigeria - Norway - Pakistan - Papua New Guinea - Peru - Philip-pines - Puerto Rico - Romania - South Africa - Spain - Sudan - Suri-nam - Taiwan - Tanzania - Thailand - The Netherlands - Tunisia - Tur-key - Uruguay - USA - Venezuela - Zaire - Zambia - Argentina - Aus-tralia - Austria - Bolivia - Brasilia - Cameroon - Canada - Chile - China- Colombia - Costa Rica - Ecuador - Egypt - El Salvador - Fidschi - Fin-land - Germany - Greece - Guatemala - Honduras - India - Indonesia -Iraq - Iran - Ireland - Japan - Jugoslawia - Laos - Lebanon - Luxem-bourg - Malawi - Malaysia - Mexico - Myanmar - Nepal - Nigeria - Nor-way - Pakistan - Papua New Guinea - Peru - Philippines - Puerto Rico- Romania - South Africa - Spain - Sudan - Surinam - Taiwan - Tanza-nia - Thailand - The Netherlands - Tunisia - Turkey- Uruguay - USA -Venezuela - Zaire - Zambia - Argentina - Australia - Austria - Bolivia -Brasilia - Cameroon - Canada - Chile - China - Colombia - Costa Rica- Ecuador - Egypt - El Salvador - Fidschi - Finland - Germany - Greece- Guatemala - Honduras - India - Indonesia - Iraq - Iran - Ireland - Ja-pan - Jugoslawia - Laos - Lebanon - Luxembourg - Malawi - Malaysia- Mexico - Myanmar - Nepal - Nigeria - Norway - Pakistan - Papua NewGuinea - Peru - Philippines - Puerto Rico - Romania - South Africa -Spain - Sudan - Surinam - Taiwan - Tanzania - Thailand - The Nether-lands - Tunisia - Turkey - Uruguay - USA - Venezuela - Zaire - Zambia- Argentina - Australia - Austria - Bolivia - Brasilia - Cameroon - Cana-

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WORLDWIDESUCCESS

In 79 countries, spread over all con-tinents, hydro plants fitted with pen-stocks and gates by VA TECH HYDROare working to full satisfaction

One of the principal demands in our busi-ness is being there: close to the market,close to our clients. In 25 overseas coun-tries VA TECH HYDRO holds own subsidiaries and sales offices.

Assisting of customers and theirengineers in the selection of optimizedproject configuration and projectfinancing is one of our main tasks.Giving advice and elaborating costbudgets are part of our routine service,and are greatly appreciated by the customers.

The today’s development in the energy sector calls more and morefor "Turnkey Contractors" and"Package" solutions.VA TECH HYDROis among the very few companies whocan offer the complete "Water to Wire"package, including penstocks, gates,water turbines, generators, transformers,transmission lines and the entire balanceof plant.

770 Penstock & Gate Reference PlantsGlobal Distribution

475

10

42

127

116

EuropeAsia Australia/Oceania Africa America


Continuous investment in Researchand Development lies at the basis ofVA TECH HYDRO’s internationallyrenowned technology

Hydraulic studies and model tests

The main criterionfor bifurcators isoptimum flow be-haviour. To achievethis, model testsare performed inour own researchlabs, but also oftenin cooperation withuniversity institutes,to determine theoptimum hydraulicshape, i.e. the oneshowing the leasthead losses.

On the basis of numerous model studiesfor high-head gates and draft tube gates,new insights into their hydrodynamic be-haviour could be gained, enabling our de-signers to enhance the operational safetyof these structures accordingly.

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RESEARCH AS A DRIVING FORCE


Beyond mere theory

For VA TECH HYDRO the verification ofcomputational methods plays an impor-tant role. Thus, for example, the calculat-ed stresses in complex geometrical

structures such as bifurcators are routinelychecked by strain gauge measurements,on the prototype or on a model. The measured data are then used toimprove our stress analysis programs.In another series of theoretical studiesand model tests to verify the theory of

critical buckling pres-sure of ring-stiffenedpipes, we were ableto achieve a majorcontribution to thisaspect of science,which resulted into animprovement of com-ponents in terms ofeconomy and safety.

Optimized manufacturing technologies

In penstock construc-tion, the right weldingtechnique is of parti-cular importance.The welding of steelshaving a yield point ofup to 800 MPa posesno problem forVA TECH HYDRO,even under the mostdifficult conditions;the relevant technologywas developed in thecompany’s ownwelding laboratories.VA TECH HYDRO isalso able to offer anautomated weldingprocess for in-situcircumferential weldson penstocks; this process (TIG HotWire) has been specially adapted for thisapplication by our engineers and it canbe used for all material gradesincluding Q&T steels.

5


The ability of VA TECH HYDRO to takeon even the most demanding orders isproved, among others, by our high-headgates; our references in this respectinclude equipment designed for operatingheads of more than 190 mWC. Numerous orders from the past few yearsdocument the international reputation ofVA TECH HYDRO as a manufacturer ofhigh-head gates. Our gates are equipped either withhydraulic (servomotors) or mechanicalhoisting devices. Automated circuits andremote-control systems offer safe opera-tion while at the same time limiting opera-ting and personnel costs to a minimum.

6

Safety and efficiency are the hallmarksof VA TECH HYDRO’s mechanicalequipment for dams

Dams for hydropower purpose have tomeet extremely stringent safety require-ments. VA TECH HYDRO supplies spillway gates,intake and outlet equipment, as well asbottom outlet and diversion gates, fullyconforming to these demands.

SAFETY THAT FLOWSFROM EXPERIENCE


Highlights from High-Head Gates

Net Gate Area (m2)

Op

erat

ing

Hea

d (

mW

C)

Fixed Wheel Gate

Sliding Gate

Radial Gate

Caterpillar Gate


For instrumentation purposes, hardware byinternationally renowned manufacturers isused, while the software necessary foroperation and control of these installationscomes from our own technical offices, andis fully tested by our specialists in thecourse of commissioning.

RUNNINGTO PERFECTION

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Sophisticated equipment to back upoperational safety and easy mainte-nance of run-of-the-river plants

The scope of supply of VA TECH HYDROincludes also components for run-of-the-river plants, such as radial gates with/without flap and double hook gates, intaketrashracks, trashrack raking machines,stoplogs and draft tube gates.

Moreover, the programme caters to allrequirements of river locks. Trash racks are designed to embody theoptimum hydraulic solution, while minimi-zing the risk of clogging by floating debris.

Low-maintenance rack raking machines byVA TECH HYDRO are on standby to avoidany hitch in the running of the plants.

In line with customer wishes, the cranesnecessary to move our hydraulic steelstructures are also designed and providedby VA TECH HYDRO.


Highlights from Low-Head Gates

Gate Width (m)

Gat

e H

eig

ht (

m) Wheel Gate

Double Hook Gate

Radial Gate

Radial Gate w. Flap

Flap Gate


13.26 m diameter – 2,070 m head –6,210 P x D ... characteristic data sureto impress

Depending on the actual project setting,we design, manufacture and erect pressureconduits both as exposed and embeddedpenstocks, as pipe bridges or steel tunnellinings.

We have also acquired long and compe-tent experience in the design and con-struction of manifolds and bifurcations.Besides the optimization of hydraulic con-ditions, the choice of suitable materials isa major concern in penstock construction.The know-how developed in more than50 years in the production and processingof high-strength steel benefits the engineersat VA TECH HYDRO, and especially in thepenstock design department.

The employment of state-of-the-art andthermomechanically rolled steels as wellas quenched and tempered steels enablesus to offer our customers attractivesolutions.

10

Many years’ experience in the treatmentof these materials, combined with thepermanent training of our welding staff,guarantee maximum safety in operation.

In penstock construction VA TECHHYDRO can exercise its strength inengineering and project management tofull effect. Since more and more penstocksare being manufactured directly at site,professional management under thesupervision of VA TECH HYDRO’s specialists is gaining increasing importance.

HIGH STANDARDS INPENSTOCK CONSTRUCTION


Highlights from Penstock References

Internal Diameter D (m)

Des

ign

Hea

d (

mW

C) Penstock

Penstock & Manifold

Manifold / Bifurcation


Maximum utilization of local resources

- under our full responsibilty

The demand of know-how transfer as wellas making maximum use of local resources,but also the cost factor, require the increasing outplacement of activities to the project countries.

VA TECH HYDRO started to fabricatepenstocks directly on site already some30 years ago. A temporary field workshopis set up to house all the necessary ma-chinery for production and testing, so thatdeliveries to site are limited to unmachinedand flat plates only.

Out of 310,000 tons of penstocks fabrica-ted and erected by VA TECH HYDROresp. by its predecessor company VA TECH VOEST MCE, some 151,000 tonswere fabricated directly on site. So far, sitefabrication for 37 contracts have beensuccessfully completed by this technology,in 16 countries under most diverse andadverse conditions of climate and terrain.

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The largest project in terms of volume wasthe Mingtan pumped storage power sta-tion in Taiwan, involving 26,000 tonnes ofsteel conduits and penstocks.For the 3rd extension of the Tarbela Damin Pakistan not only the penstocks werefabricated at site, but also, and this wasan absolute novelty, the bifurcations - thelargest unit having an inlet diameter of noless than 13.26 m and a total weight of800 tonnes.

But no matter how large the share of local supplies and services is, the overall responsibility for the project lies with VA TECH HYDRO.

WORLD CLASSIN SITE FABRICATION


Penstock Record (Total and Site Fabricated)

Cum

ulat

ive

Tons Penstocks - Total

Site-Fabricated Penstocks


First-class equipment takes roughground in its stride

Hydro power plants are often located inareas where access is difficult; handlingheavy components provides an additionalchallenge for erection crews.Well-considered solutions and specialequipment help us to master the evenmost difficult situations.

Specially developed pipe carriages takelarge pipes from the field shop to theplace of erection. It copes with units up to 80 tons and evenallows access into narrow tunnels.The heaviest erection units inVA TECH HYDRO history weighed285 tons, also moved by purpose-builtequipment from our own source.

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Smaller components, pipes up to 10 tons,are erected with mobile cableway systems,especially in steep mountains or sites inremote areas.Climbing cranes and temporary erectionbridges are also among the not-so-quite-usual methods, all of them perfectlymastered by VA TECH HYDRO.

MEETING THECHALLENGE


VA TECH HYDRO worldwide

www.vatech-hydro.com

Set ups in Argentina, Austria, Australia, Brazil, Canada, Chile, China, Columbia, Egypt, France, Germany, Hungary, India, Indonesia, Iran, Italy,Korea, Malaysia, Mexico, Norge, Peru, Philippines, Poland, South-Africa, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey,

United Arab Emirates, United Kingdom, Ukraine, USA, Venezuela and Vietnam.

VA TECH HYDROe-mail: [email protected]

Lunzerstrasse 78A-4031 Linz, Austria

Phone: (++43/70) 6987 - 8805Fax: (++43/70) 6980 - 8826

Escher-Wyss-Strasse 25D-88212 Ravensburg, Germany

Phone: (++49/751) 83 - 2941Fax: (++49/751) 83 - 3280

Penzinger Strasse 76A-1141 Vienna, Austria

Phone: (++43/1) 89 100 - 2963Fax: (++43/1) 89 100 - 3821 eH

YD

.LH

.22.

5000

.L.D

01


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