Welcome to Ecer
Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Consent Do not consent
China factories

Chat Now Send Email
China factory - Zhengzhou Shenlong Pump Industry CO.,Ltd

Zhengzhou Shenlong Pump Industry CO.,Ltd

  • China,Zhengzhou ,Henan
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
  1. Home>
  2. Submersible Seawater Pump>
  3. SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for
China SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for
China SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for

  1. China SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for
  2. China SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for
  3. China SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for
  4. China SS316L Deep Well Submersible Seawater Pump with 700m Head and 2500 m3/h Flow for

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

  1. MOQ： 1 piece
  2. Price： Please feel free to contact us
  3. Get Latest Price
Pump size 7 8 10 12 14 inch submersible well pump
Flow 15 m3/h-2500 m3/h
Voltage 380v 420v 660v or as per request
Power 15hp 20hp 30hp 40hp submersible water pump
Head 25-700m
Install Vertical
Material Cast iron/SS304/SS316/SS316L/Duplex stainless/SS904
Payment Terms L/C,D/A,D/P,T/T,,MoneyGram
Supply Ability 10000 pieces per month
Delivery Time 2-5 working days
Packaging Details Deep well submersible pump is packed with wooden case or 20 inch container.
Frequency 3 phase 60hz/50hz
Quality warranty One year or more
Brand Name SLAPK
Model Number QJ
Certification ISO9001;ISO4001;ISO18001;CE,BV; TUV; SABER
Place of Origin Henan, China

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal

Explore similar products

  1. China 3 Phase 50hz 60hz Sea Water Submersible Pump / Submersible Seawater Pumps

    3 Phase 50hz 60hz Sea Water Submersible Pump / Submersible Seawater Pumps

    Chat online Now
  2. China Seawater Saltwater SS Sewage Submersible Pump Head 5-600m Corrosion Resistance

    Seawater Saltwater SS Sewage Submersible Pump Head 5-600m Corrosion Resistance

    Chat online Now
  3. China 1200m3/H Capacity Sea Water Submersible Pump 18m Head For Seafood Factory

    1200m3/H Capacity Sea Water Submersible Pump 18m Head For Seafood Factory

    Chat online Now
  4. China 10" 120hp 150m3/H Flow Sea Water Submersible Pump Super Duplex Stainless Steel

    10" 120hp 150m3/H Flow Sea Water Submersible Pump Super Duplex Stainless Steel

    Chat online Now
  1. Product Details
  2. Company Details

Product Specification

Pump size 7 8 10 12 14 inch submersible well pump Flow 15 m3/h-2500 m3/h
Voltage 380v 420v 660v or as per request Power 15hp 20hp 30hp 40hp submersible water pump
Head 25-700m Install Vertical
Material Cast iron/SS304/SS316/SS316L/Duplex stainless/SS904 Payment Terms L/C,D/A,D/P,T/T,,MoneyGram
Supply Ability 10000 pieces per month Delivery Time 2-5 working days
Packaging Details Deep well submersible pump is packed with wooden case or 20 inch container. Frequency 3 phase 60hz/50hz
Quality warranty One year or more Brand Name SLAPK
Model Number QJ Certification ISO9001;ISO4001;ISO18001;CE,BV; TUV; SABER
Place of Origin Henan, China
High Light stainless steel submersible seawater pump ，deep well submersible pump for brackish water ，submersible pump for seawater and brackish water
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.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    1986

  • Total Annual:

    20000000-35000000

  • Employee Number:

    301~500

  • Ecer Certification：

    Verified Supplier

        Zhengzhou Shenlong Pump Industry CO.,Ltd, a professional reputable ODM OEM water pump manufacturer in China since 1986, recognized by CE and ISO, ABS, SGS, BV.       Main products: Electric Submersible Pump for pumping clean water, hot water and sea water...         Zhengzhou Shenlong Pump Industry CO.,Ltd, a professional reputable ODM OEM water pump manufacturer in China since 1986, recognized by CE and ISO, ABS, SGS, BV.       Main products: Electric Submersible Pump for pumping clean water, hot water and sea water...

+ Read More

Get in touch with us

  • Reach Us
  • Zhengzhou Shenlong Pump Industry CO.,Ltd
  • E-commerce Industrial Park, High-tech Zone, Zhengzhou City, Henan Province, China
  • https://www.submersible-waterpumps.com/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement

Trade Alert - Delivering the latest product trends and industry news straight to your inbox.

Home Categories About Us
RFQ Report IPR products Privacy Policy Sitemap

© 2026 Chinax.com. All rights reserved.