SW End Suction Pump
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SW Series High-Efficiency Energy-Saving End Suction PumpOptimized Hydraulics | IE3/IE4 High-Efficiency Motors | 10-20% Energy Savings | Reduced OPEX The FILIPUSI SW Series is engineered with next-generation high-efficiency hydraulic models that significantly lower power consumption compared to standard end-suction pumps with identical duty parameters. Computer Fluid Dynamics (CFD) optimized impeller and volute geometry minimize internal turbulence and friction loss, elevating hydraulic efficiency above industry standards. With flows from 4.5 to 950 m³/h and heads up to 150 meters, the SW series delivers maximum flow and head performance with reduced motor wattage, driving long-term energy savings for your facility.
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Why Choose SW Energy-Saving End Suction Pumps?
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10-20% Lower Power Consumption Achieves the exact same head and flow capacity as conventional pumps while utilizing a smaller motor size, cutting electricity overhead drastically. Typical energy savings range from 10% to 20% at the same duty point, with payback periods often under 12 months for continuous-duty applications. |
Advanced CFD-Optimized Hydraulics Computer-optimized fluid dynamic channels minimize internal turbulence and friction loss, elevating hydraulic efficiency above standard ISO pump thresholds. Precision-cast impellers and volutes ensure smooth, low-vibration operation with reduced noise levels (<72 dB). |
IE3/IE4 Premium Efficiency Motors Equipped with IE3 or IE4 high-efficiency electric motors as standard, exceeding EU ErP and global energy efficiency regulations. VFD-compatible motor setups enable additional energy savings of 30-50% in variable-flow applications such as HVAC and municipal boosting. |
Typical Energy Savings Example:
A 15 kW standard end suction pump running 24/7 consumes approximately 131,400 kWh/year. The equivalent SW high-efficiency model at 15% lower power consumption uses only ~111,700 kWh/year — saving 19,700 kWh annually. At an industrial electricity rate of $0.10/kWh, this equals $1,970/year in energy cost savings per pump. For a typical HVAC plant with 10 pumps, annual savings exceed $19,700
Working Principle & Eco-Engineering Features
The SW Series centrifugal pump transfers fluid through a precision-balanced closed impeller that converts rotational kinetic energy into smooth hydrodynamic pressure with minimal mechanical resistance. Its streamlined casing geometry, optimized through CFD simulation, ensures maximum fluid velocity with reduced input energy. The back pull-out modular design allows rotating assemblies to be quickly dismounted for inspection and maintenance without dismantling suction and discharge pipe connections.
| • | Low-Power High-Output Design: Re-engineered impeller blades allow lower kilowatt consumption without compromising on required system pressure or flow, reducing both capital expenditure (smaller motor) and operational expenditure (lower electricity). |
| • | Modular Back Pull-Out System: Rotating assemblies can be quickly dismounted for inspection and maintenance without dismantling suction and discharge pipe connections, reducing maintenance downtime by up to 60%. |
| • | Premium Shaft & Mechanical Seals: Equips low-friction mechanical seals (SW50/40 standard) and heavy-duty shafting to ensure leak-free performance and extended service intervals. Double mechanical seals available for hazardous fluid applications. |
| • | Versatile Material Selection: Manufactured in heavy-duty Ductile Cast Iron (standard), AISI 304, AISI 316/316L, or custom metallurgy for diverse clean liquid and mild chemical applications. Bronze options available for seawater service. |
| • | Sustainable & Eco-Friendly: Ideal for energy-conscious operations, municipal boosting, and HVAC projects aimed at meeting strict environmental and carbon reduction targets. Lower energy consumption directly reduces CO₂ emissions and supports ESG compliance. |
SW Series Hydraulic Performance Curves
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Note: Performance curve images should be compressed to under 200KB for optimal page load speed. Contact us for full-resolution PDF curves for all model sizes.
SW Technical Specifications & Operational Range
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Technical Parameter
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Standard Working Capability
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Customization & Options
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Flow Rate Range (Capacity)
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4.5 – 950 m³/h
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Custom hydraulic trimming for optimum efficiency point (BEP)
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Maximum Head (Pressure)
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Up to 150 meters (15 bar)
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Reinforced casing options for high-pressure installations
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Motor Power Range
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1.1 kW – 200 kW
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Custom motor sizing for exact duty requirements
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Motor Efficiency Class
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IE3 / IE4 High-Efficiency Motors (standard)
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VFD (Variable Frequency Drive) compatible, explosion-proof (ExdIIBT4)
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Inlet / Outlet Size
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DN40 – DN250
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DIN / ANSI / JIS flange standards on request
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Pressure Rating
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PN10 / PN16 (standard)
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PN25 high-pressure casings
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Liquid Temperature Limits
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-15°C to +110°C
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Extended temperature seals for hot water/boiler feed (up to +180°C with cooling jacket)
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Casing Material
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Ductile Cast Iron (standard)
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AISI 304 / 316L Stainless Steel, Bronze, Duplex 2205
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Mechanical Seal
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SW50/40 (silicon carbide faces, standard)
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Double mechanical seals, cartridge seals, flush plans (Plan 11/21/32)
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Power Standard & Frequency
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380V / 50Hz, 3-phase (Standard IP55)
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220V / 415V / 440V / 460V (50Hz or 60Hz)
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Certifications
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CE, ISO 9001:2015, ErP Directive compliant
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CCS / ABS / DNV marine certification on request
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Key Applications & Energy-Saving Use Cases
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Commercial HVAC & District Energy Chilled and hot water circulation for high-rise buildings, hospitals, airports, universities, and district heating/cooling networks. Pumps run 24/7, making energy efficiency critical. SW series with VFD control can reduce energy consumption by 30-50% compared to fixed-speed standard pumps, with typical payback under 12 months. |
Municipal Water Supply & Boosting Municipal water distribution networks, reservoir pumping stations, and high-rise water boosting systems. Continuous-duty operation with variable demand makes the SW high-efficiency design ideal. IE3/IE4 motors ensure compliance with global energy efficiency regulations, reducing both operational costs and carbon footprint. |
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Cooling Tower & Industrial Chiller Loops Power plants, refineries, petrochemical facilities, data centers, and large manufacturing complexes rely on cooling water circulation. The SW series delivers reliable, energy-efficient performance with low vibration and extended seal life, critical for maintaining precise process temperatures in continuous 24/7 operation. |
Industrial Process & Manufacturing Induction furnace cooling, die-cast thermal regulation, injection molding coolant circuits, food & beverage processing, and pharmaceutical manufacturing. The SW series handles clean, non-corrosive fluids with high efficiency, and optional 316/316L stainless steel construction supports hygienic and corrosive process applications. |
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Agricultural Irrigation & Greenhouses Large-scale agricultural irrigation systems, greenhouse climate control, and aquaculture water circulation. Energy-efficient pumping directly reduces operational costs for farmers and agribusinesses. The SW series offers reliable performance with low maintenance requirements, suitable for remote and unmanned pumping stations. |
ESG & Carbon Reduction Projects Facilities targeting LEED certification, ISO 50001 energy management, or corporate ESG goals benefit from the SW series' proven energy savings. Lower electricity consumption directly reduces scope 2 CO₂ emissions. Energy audit documentation and efficiency certificates are available to support green building and sustainability reporting requirements. |
How to Select the Right SW High-Efficiency Model
Selecting the optimal SW high-efficiency pump requires matching four core parameters to your system requirements, with special attention to energy efficiency and total cost of ownership:
| 01 | Required Flow Rate (Q): Determine the maximum and minimum flow your system demands. The SW series covers 4.5 to 950 m³/h. Select a pump that operates at or near its Best Efficiency Point (BEP) at your design flow — running continuously below 50% of BEP causes recirculation, cavitation, and premature seal failure, negating energy savings. |
| 02 | Total Dynamic Head (TDH): Calculate total head including static elevation, friction loss in piping and fittings, and required terminal pressure. The SW series delivers heads up to 150m. For heads exceeding 150m, consider our VS multistage pump series. |
| 03 | Energy Efficiency & Motor Selection: For continuous-duty applications (HVAC, municipal, cooling towers), always specify IE3 or IE4 motors and consider VFD (Variable Frequency Drive) control for variable-flow systems. A VFD can add 30-50% additional energy savings beyond the SW hydraulic efficiency advantage. Calculate total cost of ownership (TCO) including purchase price + 5-year energy cost, not just upfront price. |
| 04 | Fluid Properties & Material: Standard Ductile Cast Iron suits clean water up to 80°C. Specify 304/316L for mildly corrosive or hygienic applications (food, pharmaceutical). Specify Bronze for seawater service. For fluids above 110°C, specify high-temperature mechanical seals with a cooling jacket. Compare with the FS standard series if energy efficiency is not the primary requirement. |
Free energy audit & selection service: FILIPUSI engineers provide complimentary pump selection and energy savings analysis. Send us your required flow, head, fluid properties, voltage, current pump power consumption, and annual operating hours, and we will recommend the optimal SW model with projected energy savings, payback period, and full performance curve within 24 hours.
SW Energy-Saving End Suction Pumps - Frequently Asked Questions
Q1: How much energy can the SW Series save compared to traditional end-suction pumps?
A1: Thanks to its optimized CFD hydraulic geometry, the SW Series typically lowers motor power requirement by 10% to 20% at the same duty point, yielding significant electrical cost reductions over continuous operation. When combined with VFD (Variable Frequency Drive) control in variable-flow applications, total energy savings can reach 30-50%. Payback period for the premium is typically under 12 months for 24/7 continuous-duty applications.
Q2: Can SW Series pumps replace my existing standard ISO pumps directly?
A2: Yes. The SW Series adheres to standard flange and mounting footprint dimensions (EN 733 / ISO 2858), allowing seamless drop-in replacement without altering your existing plant piping layout. This means you can upgrade to high-efficiency pumps during routine maintenance without costly pipe modifications or downtime.
Q3: Which industrial applications benefit most from SW energy-saving pumps?
A3: They are widely deployed in commercial HVAC water circulation, municipal boosting stations, industrial chiller loops, cooling tower circulation, boiler feed systems, large-scale agricultural irrigation, data center cooling, and district energy networks. Applications with long operating hours (above 4,000 hours/year) see the fastest return on investment.
Q4: What is the difference between the SW high-efficiency series and the FS standard series?
A4: The FS series is a general-purpose end suction pump with standard hydraulic efficiency, suitable for a wide range of applications where energy efficiency is not the primary concern. The SW series features CFD-optimized impeller and volute geometry that delivers 10-20% higher hydraulic efficiency, comes standard with IE3/IE4 premium efficiency motors, and is specifically designed for energy-conscious, continuous-duty applications. Both series share the same back pull-out maintenance design and ISO standard mounting dimensions.
Q5: Are the SW pumps compliant with EU ErP and global energy efficiency regulations?
A5: Yes. The SW series comes standard with IE3 or IE4 premium efficiency electric motors, which meet or exceed the EU Ecodesign Directive (ErP 2009/125/EC) requirements for water pumps. The CFD-optimized hydraulics further improve overall pump efficiency (MEI) above the minimum required threshold. Efficiency test reports and CE certification documentation are available for all models to support regulatory compliance and green building certification (LEED, BREEAM).
Q6: What is the recommended maintenance schedule for SW series pumps?
A6: For normal clean water service: inspect for leaks and unusual noise monthly; check motor bearing temperature and vibration every 3 months; replace mechanical seal every 8,000-12,000 hours (or annually for continuous 24/7 operation); inspect impeller and wear ring for corrosion or erosion every 18,000-24,000 hours. The back pull-out design allows seal replacement without disconnecting pipework, reducing maintenance time by up to 60%. FILIPUSI supplies OEM spare part kits including seals, bearings, impellers, and wear rings for all SW models.
Looking to Reduce Your Facility's Energy Costs?
FILIPUSI offers full OEM/ODM engineering customization—providing high-efficiency hydraulic selection, energy audit consultation, and complete pump packages for global distributors. Get a free energy savings analysis and payback calculation within 24 hours.
High-Efficiency Water Pump Manufacturer & Exporter | www.filipusi.com
Related Pump Series & Categories
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FS Standard End Suction Series General-purpose ISO 2858 end suction pump for a wide range of industrial applications. Standard hydraulic efficiency, suitable for applications where energy savings are not the primary requirement. |
SCW Back Pull-Out Series Long-coupled design with spacer coupling for easy maintenance without disconnecting pipework. Preferred for large pumps and applications requiring frequent maintenance access. |
VS Multistage Series Vertical inline multistage pumps for heads above 150m. All-stainless-steel construction, compact footprint, up to 350m discharge head. Ideal for high-pressure water boosting and RO systems. |
Other categories: Vertical Inline Centrifugal Pumps | Double Suction Split Case Pumps | Marine & Shipboard Pumps
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