vertical multistage centrifugal pump for marine application

The marine vertical multistage centrifugal pump is engineered for high pressure and high flow requirements in shipboard systems such as boiler water supply, fire-fighting, cooling, drainage, and more. Its multi-stage design and vertical structure make it exceptionally efficient and space-saving for marine environments.

Working Principle

1. Relies on centrifugal force generated by the rotation of the impeller to draw water in and accelerate it out of the pump inlet.
2. Multi-stage design: water passes through multiple impellers, allowing stepwise acceleration and pressurization, ultimately achieving high head and high water pressure.
3. Especially suitable for boiler water supply, fire-fighting, and cooling systems.

Technical Parameters

1. Pump flow rate: 6, 8, 9, 10, 12 m³/h (varies by model)
2. Range of stages: 2 to 14 (see chart below for specific values)
3. Range of heads: 18 to 352.8 meters (see chart below for specific values)
4. Main materials: Cast iron or stainless steel for superior seawater corrosion resistance
5. Impeller: Stainless steel stamping process for smooth flow and high efficiency
6. Seal: Wear-resistant mechanical seal for long-term, leak-free operation

Main Features

1. Vertical structure: Saves space, adapts to narrow ship environments, flexible installation, small footprint.
2. Multi-stage design: Multiple impellers increase head and pressure for demanding applications.
3. Energy efficient: Optimized impeller and pump body design improve efficiency and reduce energy consumption.
4. Reliable: Stable operation under high temperature, high humidity, wind, and wave conditions.
5. Smooth running & low noise: Ensures quiet operation and minimal vibration.
6. Easy installation and maintenance: Compact design facilitates installation and upkeep.
7. Durable: Corrosion-resistant materials extend pump life in seawater environments.

Main Application Areas

1. Ship’s water supply system: Domestic and industrial water supply for crew and equipment.
2. Ship fire-fighting system: Provides high pressure water for emergency fire fighting and rescue.
3. Ship drainage system: Rapid removal of water accumulation for safety and stability.
4. Ship cooling system: Equipment and engine cooling to prevent overheating.
5. Boiler feed pump: Delivers water to boilers under high head and pressure conditions.
6. Marine circulating water system: Supplies cooling water to engines and equipment, often using seawater.
7. Ship’s domestic water system: Drinking, bathing, and sanitation water for crew, maintaining hygiene standards.
8. Ballast water treatment system: Treats ballast water for environmental compliance.
9. Bilge water removal: Removes accumulated bilge water for ship safety.

Selection Points

1. Head and flow requirements: Choose the appropriate head and flow to match ship requirements and ensure efficient operation.
2. Material selection: Use corrosion-resistant materials such as stainless steel or cast iron for long-term durability in seawater.
3. Pump maintenance and repair: Opt for designs that are easy to maintain, reducing operational complexity, minimizing failures, and extending equipment life.