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Vertical Multistage Pump

High Pressure Vertical Multistage RO & SWRO Desalination Pump - FILIPUSI  

High-Pressure Reverse Osmosis & SWRO Multistage Pump

Corrosion-Resistant Desalination Solutions | 20+ Years of Manufacturing Excellence from China

FILIPUSI specializes in high-pressure vertical multistage pumps engineered for Reverse Osmosis (RO) and Seawater Reverse Osmosis (SWRO) desalination systems. Built with premium corrosion-resistant alloys, our pumps deliver stable continuous high pressure, superior energy efficiency, and long service life under severe brackish and high-salinity marine environments.

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Advanced Desalination & Reverse Osmosis Pump Features

Superior Anti-Corrosion

Constructed with SS316L, Duplex 2205, and Super Duplex 2507 stainless steel to resist harsh chloride and saline pitting corrosion.

High System Efficiency

Optimized hydraulic design delivers maximum pressure output with reduced power consumption for low total cost of operation.

Continuous High Pressure

Capable of generating up to 80+ bar discharge pressure essential for high-flux membrane separation in SWRO operations.

Engineered Structural Integrity for SWRO & RO Membranes

Designed specifically for industrial water treatment and desalination processing, FILIPUSI vertical multistage pumps ensure uninterrupted fluid delivery across membrane filtration networks.

• Heavy-Duty Wetted Parts: Impellers, diffusers, and shaft sleeves are precision machined from high-grade stainless steel alloys for extended operation.
• Specialized Mechanical Seals: Equipped with corrosion and wear-resistant silicon carbide (SiC/SiC) mechanical seals tailored for high-salinity fluids.
• Low NPSH Hydraulic Design: Minimizes cavitation risk and acoustic vibration under varying inlet pressure conditions.
• Modular Vertical Footprint: Inline connection configuration saves plant floor space and simplifies maintenance without pipe dismantling.

General Technical Specifications

Technical Parameters
Standard Range
Custom Options (OEM / ODM)
Flow Rate (Q)
1 - 1200 m³/h
Customized flow paths available
Operating Pressure (P)
Up to 80 bar (8.0 MPa)
Ultra-high pressure configurations
Liquid Temperature
-15 °C to +120 °C
High-temperature chemical processing
Material Metallurgy
SS304 / SS316L
Duplex 2205 / Super Duplex 2507

Performance & Hydraulic Curves

Performance curve of vertical multistage RO desalination pump

Head & Flow Efficiency Performance Curve

Speed variation curve of vertical multistage RO desalination pump

Speed Variation & Pressure Regulation Curve

Reverse Osmosis & Desalination Pumps Procurement - FAQ

Q1: Why is Duplex or Super Duplex steel recommended for Seawater RO (SWRO) pumps? A1: Seawater contains high concentrations of chloride ions, which cause severe pitting and crevice corrosion in standard stainless steels. Super Duplex 2507 and Duplex 2205 offer exceptional Pitting Resistance Equivalent Numbers (PREN), ensuring reliability under high-salinity, high-pressure continuous operation.
Q2: Can FILIPUSI multistage pumps be integrated into automated RO plants? A2: Yes. All FILIPUSI high-pressure pumps can be equipped with Variable Frequency Drives (VFDs) and smart sensors to interface with central PLC control units, allowing precise feed pressure adjustment according to water temperature and salinity variations.
Q3: What applications are suitable for this high-pressure multistage series? A3: Ideal for Seawater Reverse Osmosis (SWRO) plants, Brackish Water Reverse Osmosis (BWRO) systems, industrial ultrapure water filtration, boiler feed pretreatments, offshore marine water supply, and high-pressure washing systems.

Product Operation & Workshop Testing Videos

Ready to Optimize Your Desalination & RO System?

FILIPUSI offers comprehensive engineering support—from custom hydraulic sizing and material selection to seamless system integration for global RO projects.

Industrial Water Pump Manufacturer & Exporter | www.filipusi.com

Product Number Product model Flow Bar Motor power Voltage Frequency(f) Inlet diameter Outlet diameter Material Mechanical seal sealing Weight(kg)
VS1-2 VS1-2 1(m³/h) 11(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 13KG
VS1-3 VS1-3 1(m³/h) 17(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 13.4KG
VS1-4 VS1-4 1(m³/h) 22(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 13.8KG
VS1-5 VS1-5 1(m³/h) 27(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 14.2KG
VS1-6 VS1-6 1(m³/h) 32(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 14.6KG
VS1-7 VS1-7 1(m³/h) 36(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 14.9KG
VS1-8 VS1-8 1(m³/h) 45(m) 0.55KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 15.2KG
VS1-9 VS1-9 1(m³/h) 50(m) 0.55KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 15.6KG
VS1-10 VS1-10 1(m³/h) 55(m) 0.55KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 16KG
VS1-11 VS1-11 1(m³/h) 60(m) 0.55KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 16.4KG
VS1-12 VS1-12 1(m³/h) 69(m) 0.75KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 23.7KG
VS1-13 VS1-13 1(m³/h) 75(m) 0.75KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 24.1KG
VS1-15 VS1-15 1(m³/h) 85(m) 0.75KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 25KG
VS1-17 VS1-17 1(m³/h) 100(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 28KG
VS1-19 VS1-19 1(m³/h) 111(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 28.8KG
VS1-22 VS1-22 1(m³/h) 127(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 30KG
VS1-25 VS1-25 1(m³/h) 145(m) 1.5KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 35.3KG
VS1-27 VS1-27 1(m³/h) 156(m) 1.5KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 36.1KG
VS1-30 VS1-30 1(m³/h) 172(m) 1.5KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 37KG
VS1-32 VS1-32 1(m³/h) 188(m) 2.2KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 37.8KG
VS1-34 VS1-34 1(m³/h) 199(m) 2.2KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 38.6KG
VS1-37 VS1-37 1(m³/h) 216(m) 2.2KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 39.8KG
VS3-2 VS3-2 3(m³/h) 11(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 12.8KG
VS3-3 VS3-3 3(m³/h) 17(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 13.2KG
VS3-4 VS3-4 3(m³/h) 23(m) 0.37KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 13.6KG
VS3-5 VS3-5 3(m³/h) 29(m) 0.55KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 14KG
VS3-6 VS3-6 3(m³/h) 35(m) 0.55KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 16.4KG
VS3-7 VS3-7 3(m³/h) 41(m) 0.75KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 16.8KG
VS3-8 VS3-8 3(m³/h) 47(m) 0.75KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 21.9KG
VS3-9 VS3-9 3(m³/h) 53(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 24.4KG
VS3-10 VS3-10 3(m³/h) 59(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 24.8KG
VS3-11 VS3-11 3(m³/h) 65(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 25.2KG
VS3-12 VS3-12 3(m³/h) 71(m) 1.1KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 25.6KG
VS3-13 VS3-13 3(m³/h) 77(m) 1.5KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 30.6KG
VS3-14 VS3-14 3(m³/h) 83(m) 1.5KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 31KG
VS3-16 VS3-16 3(m³/h) 96(m) 1.5KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 31.8KG
VS3-21 VS3-21 3(m³/h) 126(m) 2.2KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 35.2KG
VS3-23 VS3-23 3(m³/h) 138(m) 2.2KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 36.8KG
VS3-25 VS3-25 3(m³/h) 150(m) 3KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 36.8KG
VS3-27 VS3-27 3(m³/h) 162(m) 3KW 380V 50HZ DN25 DN25 AISI304 VSA-12/WB1F14 42.6KG
Total214Previous123456NextEndTotal 6 pages
 


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