open curved vane pump impeller – The swept open blades on this stainless steel pump impeller provide an accessible flow path without a front shroud. The geometry is suitable for custom pumps where the customer has already defined hydraulic profile, rotation direction and operating conditions.

Product Specifications and Custom Options
| Product type | Open curved-vane pump impeller |
|---|---|
| Material | 316, duplex or customer-specified stainless steel |
| Manufacturing | Investment casting, hub machining and balance inspection |
| Finish | Blasted, passivated, polished or machined |
| Applications | Pumps handling liquids that benefit from accessible open vane geometry |
| Customization | Dimensions, interfaces and inspection requirements based on drawing or approved sample |
Product and Design Review
Curved blades require consistent thickness and smooth transitions into the hub. Our review covers castability, blade-edge protection, bore machining allowance and balance. Material selection should consider chloride level, temperature, solids and cleaning requirements rather than using one stainless grade for every liquid.
Key Manufacturing Features
- Swept open-vane profile
- Accessible blade surfaces
- CNC-finished shaft interface
- Custom diameter, bore and vane geometry
Materials, Manufacturing and Surface Finish
Precision casting produces the hub, blades and shroud geometry as one stainless steel component. CNC machining controls the shaft interface and reference faces. Blade finishing and balance inspection are planned according to approved geometry, rotational speed and customer acceptance requirements.
For this open curved-vane pump impeller, the proposed route is Investment casting, hub machining and balance inspection. Final material and finish remain subject to the approved drawing and service conditions.
Typical Applications
- Process liquid pumps
- Washdown and circulation pumps
- Marine fluid equipment
- OEM centrifugal pump assemblies
Quality Control and Approval
Quality checks focus on material, blade completeness, key dimensions, bore geometry, runout and the specified balance condition. Hydraulic performance is validated by the pump or equipment manufacturer because it depends on the complete system, operating point and approved impeller design.
OEM Customization and RFQ Information
AODSON manufactures drawing-based and sample-based metal components for OEM buyers, distributors and engineering teams. For a practical review, send the following information:
- 2D drawing and 3D model, or clear sample photographs
- Material grade and operating environment
- Critical dimensions, fits and inspection requirements
- Target quantity and expected repeat demand
- Surface finish, packaging and destination country
Request a quotation for this component or review related AODSON capabilities: Pump and Valve Components, Precision Casting, Inspection and Traceability.
Frequently Asked Questions
Can this open curved-vane pump impeller be customized?
Yes. Dimensions, mounting interfaces, material, finish and inspection can be manufactured from an approved drawing or sample. Feasibility is reviewed before quotation or tooling.
Which material grades are available?
The current recommendation is 316, duplex or customer-specified stainless steel. The final grade should be selected from corrosion, strength, temperature, wear and regulatory requirements.
What is needed for an accurate quotation?
Please provide geometry, material, quantity, critical tolerances, finish and delivery requirements. Stating the application helps engineering identify risks that may not be visible on the drawing alone.


