When moving large volumes of seawater in industrial, municipal, or marine environments, corrosion resistance is just as critical as flow capacity. Standard pumps fail quickly in chloride-rich seawater. That’s why engineers and procurement specialists search for a super duplex vertical mixed flow pump for seawater —a pump engineered to handle high flow, low-to-medium head, and extreme corrosion.
Hunan Durafort Pumps Co., Ltd., a professional pump manufacturer in Hunan Province and South China, delivers exactly that. With over 300 employees and an annual production of more than 20,000 pump units, the company combines scale, metallurgical expertise, and application engineering to produce vertical mixed flow pumps that excel in seawater service.
Why Seawater Requires a Super Duplex Vertical Mixed Flow Pump
Seawater is highly corrosive due to its chloride content, leading to pitting, crevice corrosion, and stress corrosion cracking in ordinary stainless steels (e.g., 304, 316L). A super duplex vertical mixed flow pump for seawater must be built with premium materials such as SS2205, SS2507, CD4MCuN, 904L, or TA2/TA10 (titanium) .
Hunan Durafort Pumps offers all these materials, ensuring long service life, low maintenance, and reliable performance in aggressive marine environments—from seawater intake stations to offshore platforms.
Vertical Mixed Flow Pump – Technical Specifications
The company’s vertical mixed flow pumps are specifically designed for large flow, low head applications, making them ideal for seawater lifting, circulation, and drainage.
| พารามิเตอร์ | Range / Capability |
|---|---|
| อัตราการไหล | 180 – 36,000 m³/h |
| หัวหน้า | 2 – 11.5 m |
| อุณหภูมิ | Up to 180°C |
| Materials (Seawater-grade) | Cast Iron, Ductile Iron, SS304, SS316L, SS2205, SS2507, 904L, CD4MCuN, TA2/TA10 |
✅ Super duplex grades available: SS2205, SS2507, CD4MCuN
✅ Higher corrosion resistance: 904L, Titanium (TA2/TA10)
These specifications make the pump suitable for seawater intake, cooling water systems, desalination pre-treatment, and flood control in coastal regions.
Key Applications of Super Duplex Vertical Mixed Flow Pump for Seawater
When you choose a super duplex vertical mixed flow pump for seawater from Hunan Durafort Pumps, you can deploy it in:
1. Seawater Intake for Power Plants
- Coastal thermal and nuclear power plants
- Cooling water supply systems
2. Desalination Plants
- Reverse osmosis (RO) feed water
- Pre-treatment and brine handling
3. Offshore and Marine
- Ballast water transfer
- Seawater lift stations on platforms and vessels
- Dock and harbor drainage
4. Coastal Industrial Facilities
- Steel mills, chemical plants, and refineries using seawater for cooling or processing
5. Aquaculture and Irrigation
- Large-scale fish farming
- Seawater greenhouse irrigation systems
The combination of super duplex stainless steel (SS2507/CD4MCuN) with flows up to 36,000 m³/h makes this pump unmatched for high-volume seawater movement.
Why Hunan Durafort Pumps Is a Trusted Manufacturer
✔ Specialized in Corrosion-Resistant Materials
Many pump manufacturers offer only cast iron or 316L. Hunan Durafort Pumps provides full super duplex and titanium options (SS2205, SS2507, 904L, CD4MCuN, TA2/TA10), ensuring your pump withstands years of seawater exposure.
✔ High-Volume Production Capacity
With an annual output of 20,000 pumps, the company can handle large projects—from municipal seawater cooling systems to industrial seawater intake stations—without compromising lead times.
✔ Proven Engineering for Low-Head, High-Flow Duty
The vertical mixed flow pump design (180–36,000 m³/h, 2–11.5 m head) is optimized for moving massive seawater volumes efficiently, with low NPSH requirements and smooth operation.
✔ Temperature Tolerance Up to 180°C
While seawater is typically cold, some industrial processes involve warm seawater discharge or thermal mixing. This pump handles temperatures up to 180°C, adding versatility.
Material Selection Guide for Seawater Applications
| วัสดุ | Corrosion Resistance in Seawater | Recommended For |
|---|---|---|
| SS316L | Moderate | Short-term or low-chloride brackish water |
| SS2205 (Duplex) | ดี | Continuous seawater, moderate chlorides |
| SS2507 (Super Duplex) | ยอดเยี่ยม | High-chloride, warm seawater, aggressive duty |
| CD4MCuN | Excellent (high strength) | Seawater with solids or erosion risk |
| 904L | Very good | Acidic seawater, chemical marine environments |
| TA2/TA10 (Titanium) | Outstanding | Extreme corrosion, long-life offshore systems |
For a true super duplex vertical mixed flow pump for seawater, Hunan Durafort Pumps recommends SS2507 or CD4MCuN as the optimal balance of cost, availability, and corrosion resistance.
If you are searching for a reliable super duplex vertical mixed flow pump for seawater, Hunan Durafort Pumps Co., Ltd. delivers:
- ✔ Flows up to 36,000 m³/h
- ✔ Heads from 2 to 11.5 meters
- ✔ Super duplex grades: SS2205, SS2507, CD4MCuN
- ✔ Premium alternatives: 904L, Titanium TA2/TA10
- ✔ Temperature capability up to 180°C
- ✔ Annual production: มากกว่า 20,000 ชุดเครื่องสูบ
- ✔ Located in Hunan Province, South China – a leading manufacturing hub
This combination of metallurgical expertise, production scale, and application focus makes Hunan Durafort Pumps the preferred choice for seawater pumping projects across the globe.
Contact Hunan Durafort Pumps Co., Ltd.
Ready to specify a super duplex vertical mixed flow pump for seawater for your coastal or marine project? Contact the technical team at Hunan Durafort Pumps to discuss flow requirements, material selection (SS2205/SS2507/CD4MCuN/904L/Titanium), and delivery schedules.
- Company: บริษัท Hunan Durafort Pumps Co., Ltd.
- สถานที่: Hunan Province, South China
- Employees: 300+
- Annual Output: 20,000+ pumps
- Key Products: Split case pump, vertical turbine pump, vertical mixed flow pump, vertical axial flow pump
- Specialty: Super duplex, duplex, titanium, and high-alloy materials for seawater and corrosive media
