IMPELLERS & ROTORS FOR PUMPS
Hydro Pumps supplies impellers for centrifugal and vertical pumps of any brand: new, restored or manufactured to drawing through reverse engineering. Every impeller ships bench-balanced to grade G2.5 of ISO 21940-11, ready for assembly.
Impellers for every pump type and service
From geometry to alloy: the right impeller for your fluid and hydraulic condition.
Closed impeller
Maximum hydraulic efficiency for clean fluids — the standard in water, intake and process pumps.
Semi-open impeller
Tolerance to suspended solids with good efficiency — common in sanitation and lightly loaded fluids.
Open impeller
For abrasive fluids and larger solids — mining, pulp and severe services.
Vertical pump impellers
Bowl impellers for vertical turbine pumps — individual or the complete stage assembly.
Impeller restoration
Cavitated or worn impellers restored by welding, thermal spray and machining, a fast, economical alternative to a new impeller.
Made to drawing
Reverse engineering from the used part: measurement, modeling and manufacture in material equal or superior to the original.
New, restored or made to drawing?
The three supply routes
A new replacement impeller is the direct route while the manufacturer still produces the part. When lead time is critical or the pump is discontinued, the other two routes come in: restoration of the existing impeller (welding, HVOF coating and machining, followed by balancing) or manufacture to drawing via reverse engineering.
In reverse engineering we measure the used part, rebuild the hydraulic geometry in our own drawing and manufacture it in an alloy equal or superior to the original, restoring technical support to pumps their manufacturer has abandoned.
Compatible with KSB, Imbil, Sulzer, Schneider, Dancor and more
We supply compatible impellers for the main brands operating in Brazil (KSB, Imbil, Sulzer, Flowserve, Schneider, Dancor, Worthington, WEG), for catalog pumps as well as special equipment in power plants and process industries.
Every impeller, new or restored, undergoes dynamic balancing on an instrumented bench to grade G2.5 of ISO 21940-11, with a report. An impeller without documented balancing means guaranteed vibration and a bearing paid for twice.
Pump impeller questions
What gets asked before quoting a replacement impeller.
01Do you have impellers for KSB or Imbil pumps?
Yes. We supply compatible impellers for KSB, Imbil, Sulzer, Flowserve, Schneider, Dancor and other brands, by direct replacement, restoration of the existing part or manufacture to drawing. Provide the pump model and impeller diameter for a quote.
02Does the impeller come balanced?
Always. Every impeller supplied or restored by Hydro Pumps undergoes dynamic bench balancing to grade G2.5 of ISO 21940-11 and ships with a residual unbalance report, ready to assemble.
03My pump is old and has no impeller drawing. What now?
That is the classic reverse-engineering case: send us the used part (even damaged) for measurement and modeling, and we manufacture the new impeller in equal or superior material. The hydraulic geometry is preserved to keep the pump on its curve.
04Can a cavitated impeller be restored?
In most cases, yes; it depends on the extent of the erosion. We restore it by welding and thermal spray, with final machining and balancing. Important: a cavitated impeller is a symptom, not a cause. The installation's NPSH deserves a look so the erosion does not come back.
Related parts and services
Dynamic Balancing
Instrumented bench for rotors up to 5 t — documented G2.5.
Pump Overhaul
Complete reconditioning when wear goes beyond the impeller.
Guide: Cavitation
Impeller cavitation: symptoms, cause and prevention.
Guide: Balancing
What grade G2.5 means and when to balance the impeller.
Need a replacement impeller?
Send brand, model and application, and our engineering team replies with the best route within 24 hours.