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Turbine selection varies with available head & discharge- each operates most effectively in a certain pressure and flow range- Many times the turbine typese are characterized but their effective “head range”- The table below shows generally accepted values by turbine types:

Turbine Type
Head(H) Range in Meters (vertical fall of water)
Head(H) Range in Feet
Pelton Wheel
50 < H < 1300
150 < H < 5000
Cross Flow
3 < H < 250
9 < H < 750
Kaplan
2 < H < 40
6 < H < 125
Propeller
2 < H < 40
6 < H < 125

 

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