T Medium Head Turbine

The Nautilus T Medium Head turbine has been manufactured for over 10 years. Many of these turbines are installed in the U.K. and the United States. The hydraulic design is based on a utility grade Francis turbine that is reduced in size and fitted with a trapezoidal section scroll case.

This is an unregulated design. The turbine is turned on and off to match available flow with a butterfly valve installed in the penstock. Multiple units can be installed in parallel to match flow or the T-MH can be paired with a regulated CMC-MH to efficiently utilize lower flows. The Nautilus T-MH is fabricated from stainless steel and iron and designed to be bolted to a 12in penstock. It also comes fitted with a universal generator mounting plate. The T-MH is supplied with a standard 4 ft long draft tube so that it can be mounted above tail water without any head loss. This protects the turbine and generator from flooding. The T-MH can be installed on heads from 3.7m to 12m. Electrical power outputs range from 3,300 watts to 20 kW depending on head and flow.

Nautilus T Medium Head Francis Turbine System
Key Features
  • Regulation: Butterfly On/Off
  • Runner Type: Francis
  • Materials: 304 S.S., Mild Steel, Cast Iron, Bronze
  • Head Range: 4ft (1.2m) to 42ft (12.8m)
  • Flow Range: 3CFS (84l/s) to 9.7CFS (267l/s)
  • Power Output: 650 watts to 22 kW
  • Nautilus T Medium Head Thumb
  • Exploeded View Nautilus T Medium Head
  • Two Nautilus T Medium Head Turbines Installed in Parallel
  • Dual T Turbine Install
  • Nautilus T Runner
  • Single T Turbine Installed

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