Cooling Water Pump · Cooling Water Pumps
Vertical in-line centrifugal cooling pumps are designed to efficiently handle high flow rates with moderate heads, making them ideal for various industrial applications, including maritime cooling systems. DESMI’s NSL Cooling Variant is one such pump, engineered to manage sea water or fresh water flows ranging from 50 to 2500 m³/h. Featuring a robust construction with cast iron and bronze components, this modular design supports DN sizes from 80 to 350 millimeters, capable of delivering heads from 10 to 90 meters. With an approximate 180 variants available, the NSL Cooling Variant has been in production since 1990 and is well-supported by a wide range of standard spare parts. Common maintenance issues include mechanical seal leakage, bearing wear, impeller corrosion, and wear ring clearance, all of which are addressed through modular service practices. Seals are typically replaced every 8000 hours, and bearings every 20,000 hours, ensuring optimal performance and longevity.
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Modular service. Seal 8000h, bearings 20000h.
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