Cooling Water Pump · Cooling Water Pumps
Regular maintenance is crucial to ensure the longevity and reliability of high-temperature centrifugal pumps like the ALLWEILER NTT Serie (Hot Water/Thermal). Common issues such as mechanical seal leakage during high-temperature cycling, bearing wear from thermal expansion, casing gasket leakage, and coupling element heat fatigue can be effectively managed with routine checks and timely replacements. For instance, high-temp seal cartridges, bearing sets, and high-temp gaskets are essential spare parts that should be kept on hand, with a lead time of 6 to 10 weeks for CIRCOR. The NTT Serie (Hot Water/Thermal) operates efficiently across a wide range of applications, handling hot fresh water and thermal oil with capacities from 30 to 1500 m³/h and head ranges from 10 to 80 meters. Constructed from cast iron with high-temperature seals capable of enduring up to 350°C, this pump series is designed for electric drive and has been in use since 1985. To maintain optimal performance, it is recommended to replace the seal every 6000 hours and conduct alignment checks after thermal cycling. With approximately 110 variants available, the NTT Serie (Hot Water/Thermal) offers a versatile solution for high-temperature pumping needs.
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High-temperature service: seal replacement every 6000h. Alignment check after thermal cycling.
High-temp seal cartridge, bearing set, high-temp gaskets. Lead time CIRCOR 6-10 weeks.
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