Cooling Water Pump · Cooling Water Pumps
Centrifugal pumps like the Azcue AN32/250 are commonly used aboard ships for various water-handling tasks, including water treatment, irrigation, heating, ventilation, air conditioning, and refrigeration. These pumps are versatile and can handle hot, cooling, drinking process water, or even sea water. The AN32/250 model features a flow rate of up to 700m³/hr and a head capability of up to 100 meters. It operates at port sizes ranging from 32mm to 150mm and can handle temperatures up to +120°C. The pump is available in three material options: cast iron, bronze, or stainless steel, suitable for different corrosive environments and durability requirements. The pump runs at speeds of 1450/2900 rpm at 50 Hz or 1750/3500 rpm at 60 Hz. Its design adheres to DIN 24255 standards, ensuring reliability and performance in maritime applications. For specific pricing and technical details, interested parties should contact Precision Pipework Ltd. at sales@bombas-azcue.co.uk.
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| Seal leakage and bearing condition check | each routine round, logged periodically |
|---|---|
| Coupling alignment check | every 12 months or after any disturbance to pump/motor mounting |
| Bearing lubrication/grease renewal | per the maker's schedule, typically every 2,000-4,000 running hours or every 6-12 months |
| Impeller/wear ring inspection at overhaul | typically every 2-4 years, or on a condition/performance-trend basis |
| Strainer/sea chest cleaning | per operational fouling rate, checked at every routine round |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Impeller wear ring radial clearance | commonly renewed once clearance has roughly doubled from the as-new value (new clearance is often in the region of 0.3-0.8 mm depending on pump size) - confirm the specific figure against the pump's own manual |
|---|---|
| Mechanical seal face wear | judged by leakage rate and visual face condition rather than a measurable dimension - renew at the first sign of excessive or continuous leakage |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Sea water and fresh water cooling pumps serving essential machinery are typically covered under the ship's continuous machinery survey; class review focuses on standby pump availability/changeover testing, spares holding and maintenance records rather than opening a specific pump at every survey unless performance has degraded.
Estimated lifetime: Bearings on centrifugal pumps of this size are commonly rated in the region of 20,000-40,000 running hours under correct alignment and lubrication, though actual life varies significantly with load and speed; mechanical seals are more failure-mode than hour dependent and are typically renewed on condition. Confirm against the maker's data rather than treating this as a fixed figure.
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