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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)
VS10-20 VS10-20 10(m³/h) 181(m) 7.5KW 380V 50HZ DN40 DN40 AISI304 VSA-16/WB1F16 96KG
VS10-21 VS10-21 10(m³/h) 191(m) 11KW 380V 50HZ DN40 DN40 AISI304 VSA-16/WB1F16 113KG
VS15-1 VS15-1 15(m³/h) 11(m) 1.1KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 28.2KG
VS15-2 VS15-2 15(m³/h) 22.5(m) 2.2KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 34.7KG
VS15-3 VS15-3 15(m³/h) 34.5(m) 3KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 40KG
VS15-4 VS15-4 15(m³/h) 47(m) 4KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 46.8KG
VS15-5 VS15-5 15(m³/h) 58(m) 4KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 47.9KG
VS15-6 VS15-6 15(m³/h) 69(m) 5.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 67KG
VS15-7 VS15-7 15(m³/h) 81(m) 5.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 68KG
VS15-8 VS15-8 15(m³/h) 93(m) 7.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 88KG
VS15-9 VS15-9 15(m³/h) 106(m) 7.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 90KG
VS15-10 VS15-10 15(m³/h) 118(m) 11KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 108KG
VS15-13 VS15-13 15(m³/h) 152(m) 11KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 112KG
VS15-15 VS15-15 15(m³/h) 178(m) 15KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 146KG
VS15-17 VS15-17 15(m³/h) 201(m) 15KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 149KG
VS22-1 VS22-1 20(m³/h) 10.5(m) 1.1KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 28.3KG
VS22-2 VS22-2 20(m³/h) 23(m) 2.2KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 35.4KG
VS22-3 VS22-3 20(m³/h) 35(m) 4KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 40.4KG
VS22-4 VS22-4 20(m³/h) 47(m) 5.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 47.1KG
VS22-5 VS22-5 20(m³/h) 58(m) 5.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 65KG
VS22-6 VS22-6 20(m³/h) 72(m) 7.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 84KG
VS22-7 VS22-7 22(m³/h) 82(m) 7.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 86KG
VS22-8 VS22-8 20(m³/h) 95(m) 11KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 104KG
VS22-9 VS22-9 20(m³/h) 109(m) 11KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 105KG
VS22-10 VS22-10 20(m³/h) 120(m) 11KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 107KG
VS22-12 VS22-12 20(m³/h) 147(m) 15KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 141KG
VS22-14 VS22-14 20(m³/h) 170(m) 15KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 144KG
VS22-17 VS22-17 20(m³/h) 207(m) 18.5KW 380V 50HZ DN50 DN50 AISI304 VSA-16/WB1F16 156KG
VS33-1-1A VS33-1-1A 30(m³/h) 12(m) 2.2KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 67KG
VS33-1 VS33-1 30(m³/h) 17(m) 3KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 76.2KG
VS33-2-2A VS33-2-2A 30(m³/h) 27(m) 4KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 81.8KG
VS33-2-1A VS33-2-1A 30(m³/h) 32(m) 4KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 81.8KG
VS33-2 VS33-2 30(m³/h) 39(m) 5.5KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 104.8KG
VS33-3-2A VS33-3-2A 30(m³/h) 44(m) 5.5KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 108.8KG
VS33-3-1A VS33-3-1A 30(m³/h) 51(m) 7.5KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 113KG
VS33-3 VS33-3 30(m³/h) 58(m) 7.5KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 113KG
VS33-4-2A VS33-4-2A 30(m³/h) 66(m) 7.5KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 117KG
VS33-4-1A VS33-4-1A 30(m³/h) 73(m) 11KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 150.5KG
VS33-4 VS33-4 30(m³/h) 80(m) 11KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 150.5kg
VS33-5-2A VS33-5-2A 30(m³/h) 85(m) 11KW 380V 50HZ DN65 DN65 AISI304 VSA-22/WB1F14 154.5KG
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