NSL

Regular maintenance is key to ensuring the reliable operation of any marine pump. The Desmi NSL is a vertical in-line centrifugal pump designed for marine service, handling a variety of fluids including sea water, fresh water, and cooling water. Powered by an electric motor, the NSL is typically installed in engine rooms. Common issues that can arise include mechanical seal leakage, bearing wear caused by misalignment or vibration, impeller corrosion or erosion in seawater applications, and reduced capacity due to worn wear rings. Typical spare parts include mechanical seals, bearings, wear rings, a shaft sleeve, and a gasket kit. Routine service should involve checking seal leakage, bearing temperature, and vibration during operational rounds. Planned overhauls should include an inspection of the impeller and wear rings.