Submersible seawater pump for Seawater Purification

The JINAOTE Submersible Seawater Pump for Seawater Purification is specially developed for continuous operation in corrosive seawater environments.

Unlike conventional freshwater pumps, seawater pumps must withstand high salinity, chloride corrosion, salt spray, and marine organism attachment. The pump adopts corrosion-resistant materials such as 316L stainless steel, duplex stainless steel 2205/2507, super duplex 904L, and bronze, ensuring stable performance under harsh marine conditions.

It is suitable for:
• Open seawater intake systems
• Seawater purification plants
• Desalination projects
• Marine aquaculture systems
• Offshore platform water supply
• Coastal industrial cooling systems
• Seawater circulation applications

Flexible Installation Solutions for Different Marine Projects

According to different installation environments, the JINAOTE seawater pump can be customized with multiple installation methods.

1. Fixed Underwater Installation

The pump can be installed on a support bracket and placed directly underwater for continuous seawater intake.
Suitable for:
Seawater tanks, Coastal intake structures, Purification pools

2. Floating Installation

A floating system can be equipped to allow the pump to operate near the seawater surface.
Advantages:
Flexible positioning, Easy maintenance, Suitable for changing water levels

3. Shore-Based Sled Installation

The pump can be installed with a sled structure and lowered from the shore into seawater.
Suitable for:
Temporary seawater intake, Coastal engineering projects, Marine testing systems

4. Customized Marine Pump Solutions

Aote Tianjin Pump provides customized solutions according to:
Installation conditions
Seawater depth
Flow requirements
Material requirements
Power supply conditions

Technical Parameters

Working Principle

The Submersible Seawater Pump for Seawater Purification operates based on centrifugal pumping technology. The entire pump unit is designed to work fully submerged in seawater, allowing direct intake from seawater sources such as coastal areas, seawater tanks, and purification pools.

When the motor starts, it drives the impeller to rotate at high speed. The rotating impeller generates centrifugal force, creating a low-pressure area at the suction inlet. Seawater is then drawn into the pump chamber through the suction passage.

As the seawater passes through the rotating impeller, the mechanical energy from the motor is converted into hydraulic energy. The impeller increases the velocity and pressure of the seawater, and the pressurized seawater is discharged through the outlet pipe and delivered to downstream systems, including filtration units, desalination equipment, cooling systems, or marine circulation systems.

The fully submerged design helps reduce suction losses, improves pumping stability, and minimizes the risk of cavitation during operation.

Working Process

1. Seawater Intake

The pump inlet is directly immersed in seawater. Natural seawater enters the pump chamber through the suction inlet.

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2. Impeller Energy Conversion

The motor drives the impeller rotation, converting mechanical power into kinetic energy and pressure energy.

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3. Pressure Increase

The rotating impeller accelerates seawater flow and increases the pressure required for transportation.

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4. Seawater Delivery

The pressurized seawater is transported through pipelines to purification, filtration, desalination, cooling, or circulation systems.

Photos of our Submersible seawater pump for Seawater Purification from user.

Why Choose JINAOTE Submersible Seawater Pump?

More Than 20 Years of Marine Pump Experience

Aote Tianjin Pump Co., Ltd. has focused on seawater pump manufacturing for over 20 years, providing solutions for marine and industrial applications.

Designed for Harsh Seawater Conditions

The pump structure and material selection are optimized for:
• Saltwater corrosion resistance
• Continuous underwater operation
• Marine environmental stability
• Customized Engineering Support

Each seawater project has different requirements. JINAOTE provides customized pump solutions based on:
• Flow capacity
• Installation method
• Material selection
• Voltage requirements
• Project environment

Typical Applications

Seawater Purification System

Provides stable seawater intake for purification and filtration equipment.

Desalination Plant

Used as seawater intake equipment for reverse osmosis desalination systems.

Marine Aquaculture

Supports seawater circulation and oxygen supply systems.

Offshore Platform

Provides seawater supply for cooling and utility systems.

Coastal Industrial Cooling

Used for seawater circulation in coastal factories and power facilities.

FAQ

What is a Submersible seawater pump for Seawater Purification used for?

A submersible seawater pump is mainly used for seawater intake, circulation, purification, desalination, and marine cooling systems. It operates directly underwater and delivers seawater from natural sources to treatment or industrial equipment.

Can this pump work directly in seawater?

Yes. The JINAOTE seawater pump is designed for direct underwater operation and uses corrosion-resistant materials to withstand seawater environments.

What materials are available for seawater pumps?

Common materials include 316L stainless steel, duplex stainless steel 2205, duplex stainless steel 2507, 904L stainless steel, and bronze. Material selection depends on seawater conditions and project requirements.

Can the pump installation method be customized?

Yes. The pump can be installed vertically, horizontally, or inclined. Floating installation, bracket installation, and sled installation solutions are available.

What is the maximum flow capacity?

The standard flow range is from 30 m³/h to 1000 m³/h. Customized solutions are available for larger capacity requirements.