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SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for Harsh Environments
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SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for Harsh Environments

MOQ: 1 piece
Price: Please feel free to contact us
Standard Packaging: Deep well submersible pump is packed with wooden case or 20 inch container.
Delivery Period: 2-5 working days
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Capacity: 10000 pieces per month
Detail Information
Product Description
Detail Information
Place of Origin
Henan, China
Brand Name
SLAPK
Certification
ISO9001;ISO4001;ISO18001;CE,BV; TUV; SABER
Model Number
QJ
Flow:
15 M3/h-2500 M3/h
Head:
25-700m
Pump Size:
7 8 10 12 14 Inch Submersible Well Pump
Power:
15hp 20hp 30hp 40hp Submersible Water Pump
Voltage:
380v 420v 660v Or As Per Request
Frequency:
3 Phase 60hz/50hz
Material:
Cast Iron/SS304/SS316/SS316L/Duplex Stainless/SS904
Install:
Vertical
Quality Warranty:
One Year Or More
Highlight:

stainless steel submersible seawater pump

,

deep well submersible pump for brackish water

,

submersible pump for seawater and brackish water

Product Description
Deep Well Stainless Steel Submersible Pump for Seawater & Brackish Water
Reliable water extraction in coastal, offshore, and arid regions demands pumping solutions that can endure the harsh realities of saline environments. Standard cast iron or carbon steel pumps quickly succumb to corrosion when handling seawater or brackish water, leading to frequent failures, costly repairs, and system downtime.
Superior Corrosion Resistance for Saline Applications
Seawater contains high concentrations of chlorides (typically 19,000-20,000 ppm), while brackish water ranges from 1,000 to 10,000 ppm—both far exceeding the tolerance of conventional pump materials. Stainless steel, particularly grade 316L (UNS S31603) or duplex stainless steels (e.g., 2205), provides superior resistance to pitting, crevice corrosion, and stress corrosion cracking.
Key Construction Features
  • Full 316L stainless steel wetted parts: Casing, motor housing, shaft, and fasteners
  • Corrosion-resistant impellers made from reinforced engineering plastics (POM, PC) or bronze alloys for optimal hydraulic efficiency and wear resistance
  • Double mechanical seals with silicon carbide/silicon carbide (SiC/SiC) or graphite/ceramic pairs, featuring oil-lubricated chambers to prevent seawater ingress into the motor
Deep well stainless steel submersible pump installation diagram
Optimized for Deep Well Installation
Designed for wells up to 70 meters deep (with some models rated beyond 100m static head), these submersible pumps are ideal for:
  • Coastal aquifer extraction
  • Island freshwater supply from brackish lenses
  • Offshore platform service water systems
  • Seawater intake for desalination pretreatment
  • Industrial cooling using subsurface saline sources
The pump is installed vertically inside the well casing, fully submerged below the dynamic water level—eliminating priming issues and reducing surface footprint. No pump house is required, saving space and infrastructure costs.
Technical Performance Specifications
Typical specifications for modern deep well stainless steel submersible pumps:
Flow Rate: 5 - 2500 m³/h
Head: Up to 680 meters
Voltage: 220V / 380V / 415V, 50/60 Hz, 3-phase
Max Fluid Temperature: ≤ 40°C (standard); up to 60°C (optional)
Solid Particle Tolerance: < 0.01% by weight; particle size < 0.2 mm
pH Range: 6.5 - 8.5
Protection Class: IP68, hermetically sealed
Insulation Class: F or H
Many models comply with international standards including ISO 9906, GB/T 2816-2002, and IEC 60034 for motors.
Energy Efficiency & Smart Operation
Leading manufacturers integrate IE3 or IE4 premium-efficiency motors and support variable frequency drive (VFD) control, allowing the pump to adjust flow based on real-time demand—critical for fluctuating water tables or seasonal usage patterns.
Optional Smart Features
  • Built-in thermal overload protection
  • Dry-run prevention sensors
  • Remote monitoring via Modbus or IoT platforms
Stainless steel submersible pump components and construction Deep well pump installation and maintenance procedures
Submersible Well Pump Technical Parameters
Pump Diameter Model Flow Range Head Range Power
7" 175QJ 9-54 m³/h 19-265 m 2.2-37 kw
8" 200QJ 13-120 m³/h 12-465 m 2.2-45 kw
10" 250QJ 46-214 m³/h 16-430 m 5.5-125 kw
12" 300QJ 186-540 m³/h 14-138 m 18.5-220 kw
14" 350QJ 233-335 m³/h 18-130 m 30-185 kw
16" 400QJ 388-540 m³/h 18-83 m 45-185 kw
20" 500QJ 600-680 m³/h 26-86 m 90-260 kw
24" 600QJ 750-1200 m³/h 18-77 m 110-300 kw
Maintenance Tips for Longevity
  • Run the pump at least once every 2 weeks if not in continuous use to prevent salt crystallization and bearing seizure
  • Check insulation resistance (>5 MΩ) before each startup using a megohmmeter
  • Replace mechanical seals every 2-3 years in high-salinity environments
  • Ensure proper well alignment—crooked casings cause premature wear
Whether supplying freshwater to remote island communities, supporting offshore drilling rigs, or feeding reverse osmosis plants, deep well stainless steel submersible pumps deliver unmatched reliability in saline water applications. By combining marine-grade materials, precision hydraulics, and intelligent controls, they provide seamless solutions for challenging engineering applications.
Tags: 

submersible sea water pump,  

submersible pump for seawater,  

sea water submersible pump

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Products
PRODUCTS DETAILS
Products

Submersible Water Pumps

Stainless Steel Submersible Pump

Bottom Suction Submersible Pump

Electric Submersible Pump

Submersible Sewage Pump

Submersible Seawater Pump

Slurry Submersible Pump

Submersible Fountain Pump

Hot Water Submersible Pump

Mine Submersible Pump

Submersible Turbine Pump

Axial Flow Pump

Horizontal Split Case Pump

Booster Pump

Horizontal Multistage Centrifugal Pump

Vertical Submerged Pump
name
  • name
  • name
  • name
  • name
  • name
SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for Harsh Environments
MOQ: 1 piece
Price: Please feel free to contact us
Standard Packaging: Deep well submersible pump is packed with wooden case or 20 inch container.
Delivery Period: 2-5 working days
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Capacity: 10000 pieces per month
Detail Information
Product Description
Detail Information
Place of Origin
Henan, China
Brand Name
SLAPK
Certification
ISO9001;ISO4001;ISO18001;CE,BV; TUV; SABER
Model Number
QJ
Flow:
15 M3/h-2500 M3/h
Head:
25-700m
Pump Size:
7 8 10 12 14 Inch Submersible Well Pump
Power:
15hp 20hp 30hp 40hp Submersible Water Pump
Voltage:
380v 420v 660v Or As Per Request
Frequency:
3 Phase 60hz/50hz
Material:
Cast Iron/SS304/SS316/SS316L/Duplex Stainless/SS904
Install:
Vertical
Quality Warranty:
One Year Or More
Minimum Order Quantity:
1 piece
Price:
Please feel free to contact us
Packaging Details:
Deep well submersible pump is packed with wooden case or 20 inch container.
Delivery Time:
2-5 working days
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
10000 pieces per month
Highlight

stainless steel submersible seawater pump

,

deep well submersible pump for brackish water

,

submersible pump for seawater and brackish water

Product Description
Deep Well Stainless Steel Submersible Pump for Seawater & Brackish Water
Reliable water extraction in coastal, offshore, and arid regions demands pumping solutions that can endure the harsh realities of saline environments. Standard cast iron or carbon steel pumps quickly succumb to corrosion when handling seawater or brackish water, leading to frequent failures, costly repairs, and system downtime.
Superior Corrosion Resistance for Saline Applications
Seawater contains high concentrations of chlorides (typically 19,000-20,000 ppm), while brackish water ranges from 1,000 to 10,000 ppm—both far exceeding the tolerance of conventional pump materials. Stainless steel, particularly grade 316L (UNS S31603) or duplex stainless steels (e.g., 2205), provides superior resistance to pitting, crevice corrosion, and stress corrosion cracking.
Key Construction Features
  • Full 316L stainless steel wetted parts: Casing, motor housing, shaft, and fasteners
  • Corrosion-resistant impellers made from reinforced engineering plastics (POM, PC) or bronze alloys for optimal hydraulic efficiency and wear resistance
  • Double mechanical seals with silicon carbide/silicon carbide (SiC/SiC) or graphite/ceramic pairs, featuring oil-lubricated chambers to prevent seawater ingress into the motor
Deep well stainless steel submersible pump installation diagram
Optimized for Deep Well Installation
Designed for wells up to 70 meters deep (with some models rated beyond 100m static head), these submersible pumps are ideal for:
  • Coastal aquifer extraction
  • Island freshwater supply from brackish lenses
  • Offshore platform service water systems
  • Seawater intake for desalination pretreatment
  • Industrial cooling using subsurface saline sources
The pump is installed vertically inside the well casing, fully submerged below the dynamic water level—eliminating priming issues and reducing surface footprint. No pump house is required, saving space and infrastructure costs.
Technical Performance Specifications
Typical specifications for modern deep well stainless steel submersible pumps:
Flow Rate: 5 - 2500 m³/h
Head: Up to 680 meters
Voltage: 220V / 380V / 415V, 50/60 Hz, 3-phase
Max Fluid Temperature: ≤ 40°C (standard); up to 60°C (optional)
Solid Particle Tolerance: < 0.01% by weight; particle size < 0.2 mm
pH Range: 6.5 - 8.5
Protection Class: IP68, hermetically sealed
Insulation Class: F or H
Many models comply with international standards including ISO 9906, GB/T 2816-2002, and IEC 60034 for motors.
Energy Efficiency & Smart Operation
Leading manufacturers integrate IE3 or IE4 premium-efficiency motors and support variable frequency drive (VFD) control, allowing the pump to adjust flow based on real-time demand—critical for fluctuating water tables or seasonal usage patterns.
Optional Smart Features
  • Built-in thermal overload protection
  • Dry-run prevention sensors
  • Remote monitoring via Modbus or IoT platforms
Stainless steel submersible pump components and construction Deep well pump installation and maintenance procedures
Submersible Well Pump Technical Parameters
Pump Diameter Model Flow Range Head Range Power
7" 175QJ 9-54 m³/h 19-265 m 2.2-37 kw
8" 200QJ 13-120 m³/h 12-465 m 2.2-45 kw
10" 250QJ 46-214 m³/h 16-430 m 5.5-125 kw
12" 300QJ 186-540 m³/h 14-138 m 18.5-220 kw
14" 350QJ 233-335 m³/h 18-130 m 30-185 kw
16" 400QJ 388-540 m³/h 18-83 m 45-185 kw
20" 500QJ 600-680 m³/h 26-86 m 90-260 kw
24" 600QJ 750-1200 m³/h 18-77 m 110-300 kw
Maintenance Tips for Longevity
  • Run the pump at least once every 2 weeks if not in continuous use to prevent salt crystallization and bearing seizure
  • Check insulation resistance (>5 MΩ) before each startup using a megohmmeter
  • Replace mechanical seals every 2-3 years in high-salinity environments
  • Ensure proper well alignment—crooked casings cause premature wear
Whether supplying freshwater to remote island communities, supporting offshore drilling rigs, or feeding reverse osmosis plants, deep well stainless steel submersible pumps deliver unmatched reliability in saline water applications. By combining marine-grade materials, precision hydraulics, and intelligent controls, they provide seamless solutions for challenging engineering applications.
Tags: 

submersible sea water pump,

submersible pump for seawater,

sea water submersible pump

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Tel: 86 17537187726
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