When you need a robust, long-lasting solution for raw water intake, municipal water supply, or industrial transfer, the cast iron line shaft vertical turbine pump is the industry standard. Hunan Durafort Pumps Co., Ltd., a leading pump manufacturer based in Hunan Province (South China), delivers world-class vertical turbine pumps designed for demanding water supply applications.
With over 300 employees and an annual production capacity of 20,000 units, Durafort combines advanced engineering with proven reliability. Our LC series vertical long shaft pump – a high-performance vertical turbine pump – is specifically engineered to handle clean water, seawater, industrial wastewater, and more.
Why Choose a Cast Iron Line Shaft Vertical Turbine Pump for Water Supply?
Water supply systems require pumps that run continuously under varying loads. The line shaft design (also known as a vertical turbine pump with an enclosed shaft) offers superior stability compared to submersible or cantilever pumps. Here’s why cast iron is the preferred material:
- High tensile strength – Cast iron (HT250) withstands high pressure and vibration.
- Excellent damping – Reduces noise and wear on bearings.
- Corrosion resistance – Suitable for freshwater, raw water, and mild industrial effluents.
- Cost-effective – Lower initial investment than stainless steel, with long service life.
Key applications for our cast iron line shaft vertical turbine pump include:
- Municipal tap water supply
- Raw water intake for treatment plants
- Cooling water circulation in power plants & steel mills
- Flood control and drainage
- Irrigation and agricultural water supply
LC Series – Technical Specifications (Cast Iron Vertical Turbine Pump)
The Durafort LC type vertical long shaft pump is a mature, field-proven series that incorporates international best practices. It is designed for liquids up to 55°C (up to 90°C with special modifications).
| พารามิเตอร์ | ช่วง |
|---|---|
| อัตราการไหล | 50 – 8,400 m³/h |
| หัวหน้า | 15 – 150 เมตร |
| Liquid temperature | ≤55°C (≤90°C with special design) |
| วัสดุ | Cast iron / HT250, carbon steel, 304, 316L, SS2205, SS2507, 904L, CD4MCu (cast iron standard for water supply) |
| Shaft design | Line shaft (enclosed) with renewable bearings |
For water supply applications, the standard configuration is cast iron/HT250 for the bowl, column pipe, and discharge head. Stainless steel shaft or bearings can be added for aggressive water chemistry.
Construction Features of Durafort Cast Iron Line Shaft Vertical Turbine Pump
1. Heavy-Duty Cast Iron Components
All major wetted parts (suction bell, bowl assembly, column pipe, discharge head) are precision-cast in HT250 gray cast iron – a material known for excellent machinability and wear resistance.
2. Line Shaft Design with Renewable Bearings
The pump uses a line shaft (solid or hollow) supported by renewable bronze or Teflon bearings along the column length. This allows easy maintenance without removing the entire pump – critical for water supply plants that cannot afford long downtime.
3. Multiple Impeller Stages
The LC series can be built with one or multiple impeller stages to achieve the required head. For water supply systems requiring high head (e.g., booster stations), multi-stage configurations are available.
4. Flanged Connections & ANSI/DIN Compatible
Discharge flanges are drilled to ISO/DIN or ANSI standards for seamless integration into existing pipelines.
Advantages of Hunan Durafort Pumps as Your Supplier
When you search for a cast iron line shaft vertical turbine pump for water supply, you need a partner with scale and expertise. Hunan Durafort Pumps is:
- A regional leader – One of the top pump manufacturers in Hunan Province and South China.
- High production capacity – 20,000 units annually, ensuring short lead times.
- Extensive material options – From cast iron to super duplex stainless steels (2507, 904L, CD4MCu) for corrosive or seawater applications.
- Global export experience – Proven compliance with international standards.
Typical Water Supply Projects Using Our Cast Iron Vertical Turbine Pumps
| Project Type | Flow (m³/h) | Head (m) | วัสดุ |
|---|---|---|---|
| City water intake station | 2,500 | 25 | Cast iron/HT250 |
| Industrial park booster | 1,200 | 80 | Cast iron + 316L shaft |
| Irrigation district pump house | 6,000 | 15 | Cast iron |
| Steel mill cooling water | 4,000 | 40 | Cast iron + SS2205 bearings |
*All pumps delivered with line shaft design, factory-tested to ISO 9906.*
Maintenance Tips for Line Shaft Vertical Turbine Pumps
To maximize the service life of your cast iron line shaft vertical turbine pump for water supply, follow these best practices:
- Lubricate bearings – Use clean water or external grease according to your system design.
- Monitor shaft alignment – Misalignment causes premature wear of the line shaft bushings.
- Check for sand/abrasives – If pumping from a river or open reservoir, install a suction screen.
- Inspect the cast iron casing annually – Look for cavitation pitting or erosion.
Durafort provides a full spare parts kit with every pump, including bearings, shaft sleeves, and gaskets.
Contact Hunan Durafort Pumps for Your Water Supply Project
Don’t settle for an underspecified pump. Our engineering team will help you select the right cast iron line shaft vertical turbine pump based on your exact flow, head, and water chemistry.
- อีเมล: sales@deyangforge.com
- เว็บไซต์: deyangforge.com
- Factory location: Hunan Province, China (OEM & ODM welcome)
Request a quotation today – mention “Cast iron line shaft pump for water supply” to get priority engineering support.
FAQ – Cast Iron Line Shaft Vertical Turbine Pump
Q: Can this pump handle seawater?
A: Standard cast iron is not recommended for seawater. For marine applications, we offer SS2205, SS2507, or CD4MCu materials.
Q: What is the maximum depth for a line shaft pump?
A: Our LC series can be supplied for setting depths up to 12 meters (standard). Greater depths require intermediate bearings and a stronger line shaft.
Q: Is cast iron suitable for potable water supply?
A: Yes, cast iron is widely accepted for drinking water applications (NSF/ANSI 61 compliant coating available upon request).
Q: Do you supply the motor and control panel?
A: Yes, we can package vertical hollow-shaft motors (IEC/NEMA) and starters
