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MDPD Submersible Marine

Ballast Pump · Pumps

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌​‍‌⁠‍​‌‌​‍‌‌​​‌‍
100-2500 m³/hCapacity
Sea water/cargo/ballastMedium

Electric submerged deepwell pumps are designed to operate efficiently in submerged conditions, making them ideal for various maritime applications such as handling sea water, cargo, and ballast. The Marflex MDPD Submersible Marine model offers a range of capacities from 100 to 2500 m³/h, with DN sizes available in 100, 125, 150, 200, 250, and 300 millimeters. This pump series has been in service since 1995 and features an electric submerged motor drive. The pump can handle heads ranging from 20 to 150 meters and is available in approximately 50 different variants to suit various operational needs. Common issues include submerged motor seal leakage, stator winding insulation failure, and impeller wear, especially in cargo service. Regular maintenance is crucial, particularly the inspection and insulation testing of the stator during drydock operations. Additionally, full motor service is required for spare parts, underscoring the importance of thorough maintenance practices to ensure long-term reliability.

Specifications

Technical data.

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Pump TypeElectric submerged deepwell pump
Drive TypeElectric submerged motor
Service

Service notes.

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

Submersible service: motor pulled at every drydock for stator inspection. Insulation testing critical.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

Marflex specialist deepwell parts — full motor service required.

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