va tech hydro in india - ANDRITZ Vertical volute pumps
va tech hydro in india - ANDRITZ Vertical volute pumps
va tech hydro in india - ANDRITZ Vertical volute pumps
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Percentage by weight<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
Canon del Pato (Peru)<br />
Les Bois (F)<br />
Karahnjucar Fljotsdal (Iceland)<br />
Karahnjucar Dal (Iceland)<br />
Baglihar (India)<br />
M<strong>in</strong>eralogical Composition of Sands<br />
<strong>in</strong> Various Hydropower Plants<br />
Bitsch (CH)<br />
Zermatt (CH)<br />
runner for five years (five sand<br />
seasons) without any need for<br />
ma<strong>in</strong>tenance.<br />
To this date, VA TECH HYDRO has<br />
supplied four new SXH70-coated<br />
MicroGussTM runners. Two additional<br />
coated runners have been<br />
ordered as spares. These are<br />
scheduled for delivery <strong>in</strong> 2005.<br />
Small wonder: a coat<strong>in</strong>g lasts for at<br />
least five years and elim<strong>in</strong>ates the<br />
Staffel (CH)<br />
Fieschertal (CH)<br />
Stalden (CH)<br />
Coat<strong>in</strong>g of hydraulic equipment by means of High Velocity Oxygen Fuel Method (HVOF):<br />
A robot ensures high-precision passes of the HVOF spray<strong>in</strong>g gun across the runner.<br />
Alfalfal (Chile)<br />
Stalden 2 (CH)<br />
Mörel (CH)<br />
Lavey (CH)<br />
Pradella (CH)<br />
Bakaru I (Indonesia)<br />
Yellow River (Ch<strong>in</strong>a)<br />
Passy (F)<br />
Sernf (CH)<br />
Percentage of sands >= 5.5<br />
acc. to Mohs’ scale<br />
hornblende<br />
glass (tephra)<br />
pyroxene<br />
albite<br />
feldspar<br />
plagioclase<br />
prehnite / epidote<br />
oliv<strong>in</strong>e<br />
quartz<br />
(Diagram:) Many power plants suffer from wear caused by sand compris<strong>in</strong>g m<strong>in</strong>erals of a hardness of<br />
more than 5.5 on Mohs’ scale.<br />
need for 2-3 major and 2-3 m<strong>in</strong>or<br />
revisions. Tibor Bilgischer, head of<br />
the mechanical/hydraulic ma<strong>in</strong>tenance<br />
department at Stalden,<br />
praised this achievement as<br />
(quote) “overwhelm<strong>in</strong>g success”.<br />
Roger Dekumbis<br />
Phone +41/41 329 53 65<br />
roger.dekumbis@<strong>va</strong><strong>tech</strong>-<strong>hydro</strong>.ch<br />
Technical data:<br />
Output: 4 x 46 MW<br />
Head: 1,016.8 m<br />
Speed: 429 rpm<br />
Runner diameter: 3,559 mm<br />
9
Change language