3 products found
Nautilus LLC Products
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Ultra Low Head Hydro Turbines
There are hundreds of low head weirs and water mills still spread across the mid-western and eastern United States, the United Kingdom, and much of Europe. These sites were used for agro-processing and to operate small industrial shops for over a hundred years. The Nautilus low head designs are intended to match these existing sites and operate in open flumes. They will tap this age old but presently unused source of renewable energy to power homes and small businesses. Most low head mill sites started with water wheels and changed to water turbines as more power and higher shaft speeds were required to drive modern machinery and generators. These turbines were installed with vertical power shafts to get equipment above flood levels in open flumes beneath the mill (see drawing). In cases where only the weir remains, simple open flumes can be built from poured concrete or vertical corrugated steel tubes.
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Nautilus - Model 660-ULH - Ultra Low Head Turbines
The 660 Ultra Low Head turbine (660-ULH) is a 150mm (6in) diameter Francis turbine with a bronze runner and bronze and stainless steel guide vane and gate assembly. It uses a water lubricated rubber bearing below water and heavy duty spherical roller bearings above water to support the shaft and pulley assembly. The turbine case is fitted with an adjustable cylinder gate to turn the unit off and regulate ...
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Nautilus - Model T-ULH - Ultra Low Head Turbine
The T Ultra Low Head turbine (T-ULH) is the most powerful open flume turbine built by Nautilus. This unregulated design produces from 500 watts to 3,300 watts with a head range from 1m to 3.7m. Often two or three units are installed to match streamflow variation or the T-ULH is installed in combination with the Regulated CMC. For large open flume environments, where it is not possible to drain the pit, an optional cylinder gate is installed to shut ...
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Nautilus - Model CMC-ULH - Ultra Low Head Turbine
The regulated CMC Ultra Low Head turbine (CMC-ULH) operates in a similar power range as the 660-ULH in an open flume and produces up to 1500 watts. The CMC offers better part gate regulation and efficiency than the other cylinder gate Nautilus ...