316L Stainless Steel Seawater Submersible Electric Pump
Corrosion-Resistant High-Lift Deep Well Pump
| Attribute |
Value |
| Power |
2.2 kw - 410 kw |
| Flow |
9m³/h - 2500m³/h |
| Head |
12m - 600m |
| Material |
Cast iron/SS304/SS316/SS316L/duplex stainless/SS904L |
| Voltage |
380v/440v/480v/600v/660v or as per request |
| Warranty |
12 months |
Product Overview
This series is designed specifically for harsh marine environments. Utilizing ultra-corrosion-resistant 316L stainless steel and incorporating advanced fluid dynamics optimization technology, it delivers high-lift, long-life, and low-energy submersible pump solutions. Widely used in seawater desalination pretreatment, shipbuilding, offshore platforms, deep-sea mining, geothermal development, and other fields, it is an ideal choice for handling complex corrosive media and high-pressure conditions.
Key Features
- 316L Stainless Steel: The pump body, impeller, and shaft are all stainless steel, resistant to chloride ion corrosion and suitable for seawater and saline media.
- High-lift Design: Single-stage lifts reach 120 meters, with a maximum total lift of 500 meters, meeting deep-sea water extraction requirements.
- Sealing: IP68-rated, with dual mechanical seals and rubber O-rings, ensures long-term, stable underwater operation.
Technical Parameters
- Power Range: 15kW-250kW
- Voltage: 380V/660V (customizable)
- Frequency: 50Hz/60Hz
- Head Range: 120-500m
- Flow Range: 10-1200m³/h
- Applicable Media: Seawater, saline liquids (sand content ≤ 2%)
- Material: 316L stainless steel, tin bronze, duplex steel (optional)
Suitable for Complex Operating Conditions
- Wear-Resistant Design: The impeller features a three-blade structure and wear-resistant sealing rings. It can pump impurities with a sand content of ≤ 2% (particle size < 3mm), making it suitable for applications such as dock water intake and mine drainage.
- Multi-Voltage Compatibility: Supports a variety of power supply configurations, including 380V/460V/660V/1140V/3300V, and is compatible with both land and marine power systems.
- Extreme Environment Certification: IP68 waterproof rating, ExdⅡBT4 explosion-proof rating, and CCS certification are achieved, ensuring stable operation in temperatures ranging from -20°C to 90°C.
Zhengzhou Shenlong Pump Industry Co., Ltd. established in 1996, We are specialized in the RD, Manufacture and Sales of submersible water pumps & spare parts. We provide ODM and OEM customization services to meet the unique needs of our clients.
The main products include deep well submersible pumps, submersible fountain pumps, submersible sewage pumps, pipeline booster pumps, split-case pumps, multistage centrifugal pumps etc, the annual output is more than 110,000 units.
Frequently Asked Questions
Q1: Why choose 316L stainless steel over standard 304 stainless steel?
A: 316L stainless steel contains 2-3% molybdenum, forming a MoO₂ protective layer that improves chloride ion corrosion resistance by over five times that of 304. In seawater environments, the annual corrosion rate of 316L is less than 0.1mm, ensuring a service life of over 15 years.
Q2: How is high head achieved? Does it affect efficiency?
A: It utilizes a multi-stage centrifugal pump structure with high-efficiency guide vanes on each stage, optimized with CFD fluid simulation. Even at a head of 500m, efficiency remains above 72%, far exceeding the industry average of 65%.
Q3: How does it handle media with high sand content?
A: The three-blade impeller features a streamlined design, ceramic wear rings, and an axial clearance adjustment device. It can effectively handle sand-containing media with particle sizes <3mm and concentrations ≤2%. Tests show that after 1000 hours of continuous operation, the impeller wear rate is <0.5%.
Q4: Is customization available?
A: We can customize power, voltage, and materials. We offer versions with a wide operating temperature range of -20°C to 90°C, as well as upgrades to explosion-proof grade ExdⅡCT4. Customization typically takes 8-12 weeks, and 3D model verification is provided.
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