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CN / CVL Serie

Ballast Pump · Pumps

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌​‍‌‌‍‍‍‍⁠‌‍‍​‍‌‍
40-3500 m³/hCapacity
Sea water/ballastMedium

The centrifugal marine pump design, whether horizontal (CN) or vertical inline (CVL), is optimized for efficient sea water and ballast handling. IRON PUMP's CN / CVL Serie operates with a flow range of 40 to 3500 m³/h and can handle head pressures up to 90 meters. Constructed from bronze, these pumps are built for longevity in seawater applications, ensuring a service life of over two decades under normal conditions. However, common issues include mechanical seal leakage, bearing wear due to misalignment, impeller erosion in heavy sand or silt waters, and increased casing wear-rings. The spare parts are known for their long-term availability, with many 30-year-old pumps still in service. Standard maintenance intervals call for seals every 10,000 hours and bearings every 20,000 hours to keep these robust machines running smoothly.

Specifications

Technical data.

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Pump TypeCentrifugal marine pump (horizontal CN, vertical inline CVL)
Drive TypeElectric
ConstructionBronze-special construction for seawater longevity
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Bronze construction enables 20+ year life in seawater. Standard service: seal 10000h, bearings 20000h.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

IRON PUMP DK spare parts known for long-term availability — many 30-year-old pumps still serviceable.

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