What is an Open Impeller?
Open Impellers have vanes that are open on both sides without any protective shrouds that are attached to a center hub and are directly mounted to a shaft. There is no wall surrounding the vanes, which makes them faster and easier to clean or repair.
Open Impellers tend to be used in smaller pumps, handling liquids, abrasive liquids, or suspended solids. Due to their structure, open impellers operate optimally under reduced levels of strain. While they can handle a degree of solid content, unlike closed impellers, they require a higher Net Positive Suction Head (NPSH) to operate without damage and loss of efficiency.
Need help with a current project?
Application & Industries
Open impellers are used in a wide variety of industries. They are typically easier to service, clean, and repair. These impellers are utilized in pumps serving a wide range of applications for multiple industries:
- Mining & Mineral
- Chemical processing
- Oil & Gas
- Pulp & Paper
- Food processing
Case Studies, News, & Resources
- SF&E Improves Castability and Production Timeline for Complex Impeller
- SF&E Pours Largest Nuclear Impeller in its History
- For Fristam Pumps, Mutual Trust is Key to 20-Year SF&E Partnership
- Oil Refinery Partners with Turbonetics and SF&E on Illium PD Double Suction Casing
- Core Parts: Anatomy of a Centrifugal Pump
- Pump Impellers
<<< Back to Impellers
Checkout our most recent news, certifications, and case studies
See our Top Pump & Valve Products showcasing our capabilities