EVMSU Vertical Multistage Pump
The EBARA EVMSU Vertical Multistage Pump sets a new standard for energy efficiency, motor longevity, and hydraulic performance. Featuring EBARA’s innovative Shurricane™ impeller, the EVMSU minimizes axial thrust load, reducing wear on motor bearings and ensuring longer, more reliable operation.
Designed for versatility, the EVMSU integrates seamlessly with standard NEMA motors and offers flexible piping, seal, and installation options. Its compact footprint, low-NPSH capabilities, and precision engineering make it the ideal choice for demanding industrial, municipal, and building service applications.
PRINCIPLE OF OPERATION
The EVMSU operates as a vertical, multistage centrifugal pump using multiple impeller stages to achieve high pressure at consistent flow rates. Its Shurricane™ impeller design — developed through advanced computational fluid dynamics — revolutionizes axial thrust load management by equalizing pressure distribution across impeller shrouds.
This results in smoother operation, reduced bearing wear, and compatibility with standard commercial motors without modification. The pump’s high-efficiency hydraulics and low-NPSH options ensure optimal suction performance and reduced cavitation in even the most demanding conditions.
Located in the United States?
We offer these pumps in Canada, but US companies can order the same products through our sister company, EBARA Pumps America Corporation (EPAC).
Features & Benefits
Advanced impeller geometry minimizes axial thrust load, extending motor bearing life and improving efficiency.
Precision hydraulic design and tungsten-carbide bearings deliver long life, quiet operation, and consistent performance.
Multiple flange and connection styles ensure easy integration into existing systems or new builds.
Plug-and-play replacement simplifies maintenance and reduces downtime — no need to remove the motor.
Allows maintenance without removing motors larger than 5 HP, reducing labor and service time.
Floating outer casing design prevents deformation under temperature and pressure changes in hot-water applications.
High-performance pumping with a smaller footprint for tight installations.
Ideal for suction-challenged systems where cavitation must be minimized.
Industries & Applications
Specifications
| Parameter | Value |
| Type | Vertical multistage centrifugal pump |
| Series | EVMSU / EVMSUN (Low NPSH Option) |
| Flow Range | Up to 800 US gpm (≈ 3,000 L/min) |
| Head Range | Up to 900 ft (≈ 275 m) |
| Material Options | AISI 304 / AISI 316 Stainless Steel |
| Seal Types | B, Q, Qg (EN 12756 / DIN 24960 Compliant) |
| Bearing Material | Tungsten Carbide |
| Motor Compatibility | Standard NEMA Motors – No Modification Required |
| Piping Connections | Round, Loose, Oval, Victaulic / Clamp |
| Optional Features | Low NPSH Design, Cartridge Seal, Spacer Coupling |
| Certifications | NSF Certified (seal code “S” models) |
Pump Configurations
The EVMSU series offers a range of configurations to meet performance and application needs:
- Standard and Low-NPSH Models
Available in stainless steel (AISI 304) or marine-grade (AISI 316) construction, providing durability and corrosion resistance for a variety of process fluids.
- Low NPSH Models (EVMSUN)
Optimized for applications requiring low suction head conditions — perfect for systems with limited inlet pressure or fluctuating supply levels.
- Seal Code Options
Multiple seal configurations available, including:
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- B: Resin-impregnated carbon graphite
- Q: Sintered silicon carbide
- Qg: Silicon carbide with carbon graphite inclusion
- (All seals conform to EN 12756 / DIN 24960.)
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- Flange & Connection Types
Round, oval, loose, Victaulic, and clamp-type ANSI-compatible flanges support flexible installation and upgrade scenarios.
- Motor Compatibility
Standard NEMA motors fit without modification — enabling “any motor anywhere” flexibility and simplified replacement.
Key Differentiators
- Revolutionary axial thrust reduction through the patented Shurricane™ impeller
- Universal motor compatibility — fits any NEMA motor without redesign
- Extended service life with tungsten-carbide bearings and thermal-expansion protection
- Maintenance ease thanks to cartridge seals, spacer coupling, and smart plug access ports
- Certified performance meeting rigorous quality and NSF standards
Ready to Get Started?
Our team provides the most complete and comprehensive portfolio of rotating equipment solutions - mixers and pumps - for your application. We are your perfect process partner.
Located in the United States?
These pumps are sold in Canada, but US companies can order the same products through our sister company, EBARA Pumps America Corporation (EPAC).
Contact a Representative
EBARA Hayward Gordon provides dependable, precision-engineered pumping solutions for every stage of your process. Whether you’re boosting pressure in a high-rise, circulating process water, or optimizing system efficiency, the EVMSU Series delivers proven performance and flexibility.