Our turbine range
is based on the crossflow principal developed by Banki and
Michell nearly 100 years ago. The great advantage of the
crossflow is its ability to operate at high efficiencies over
a wide range of flow patterns, typically down to 20% of design
flow. This is particularly important on low head sites with a
highly variable flow regime enabling the turbine to continue
generating for most of the year.
These three key elements govern all aspects of our products
and all our efforts strive to achieve them.
Available - Short lead times Typically 4 - 6 months
Affordable - Competitively priced including a wealth of
Reliable - Reliability is “built in” to the design,
materials and manufacture.
Key Technical features
Fully welded mild steel case assembled from laser cut panels
for supreme accuracy.
Internally stiffened to add strength and minimise resonance
Stainless steel runner on a solid stainless steel shaft.
Sturdy seal and bearing assembly block.
Side access panel enabling rotor and guide vane removal with
PTFE stuffing cord main shaft seals for prolonged life and low
Double O ring seals on guide vane shafts incl. lubrication
Branded, self aligning double spherical roller bearings with
taper fit sleeve to shaft.
Central lubrication point (larger models only).
Fabricated (Cast iron on C2) guide vanes.
Stainless steel fastenings throughout.
Multiple coat, two pack paint finish.
Choice of mounting options and accessories.
Automatic air valve standard on most models.
Since January 2012 all models conform to our new
product designation as follows:-
The C2 with a 200mm dia. Rotor
The C3 with a 300mm dia. Rotor
The C4 with a 400mm dia. Rotor
our turbines have evolved and power levels have increased we
now build the turbine to match the projected power output.
This is essential to keep the cost of lower power machines at
affordable levels. A suffix to the product designation
indicates which power band the turbine is designed to. All
turbines will continue to be built with a large safety
margin. All models come in different rotor lengths to suit a
range of head and flows.
The standard rotor
100mm to 300mm C2
100mm to 1000mm C3
100mm to in 1200mm C4
Typically In 100mm steps.
Bespoke rotor lengths are available.
C3 and C4 models above 300m runner length
are available in 1/3 - 2/3 split nozzles
We can size your turbine given the net head and max flow.
However, more detailed considerations i.e. the actual model
type, whether split or one piece nozzle, generator mountings,
draft tube and transition piece design can only be achieved
with considerably more data. Your hydro engineer or consultant
can advise on this.