 
Sometimes the turned down impeller diameter must be increased
in order to get higher head and in many companies only the impellers
with max. diameter are kept in spare part stock.
You can enlarge the pictures by clicking
the thumbnails.
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The stainless steel circle has been joined together with
an open impeller and the front edge of the vane on the
top has been filled by welding as well. |
The same impeller after repair and dynamic balancing.
The costs were about 30 % of the price of a new impeller. |
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The stainless steel circle has been welded together with
the back plate of a shrouded impeller and the vanes have
been lenghtened. |
The stainless steel circle has been joined together with
the front plate and the impeller is ready to be machined. |
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The finished impeller after machining and dynamic balancing.
The costs were about 30 % of the price of a new impeller. |
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