ALLWEILER – NTT 50-200 U5A-W4 – CENTRIFUGAL THERMAL OIL PUMP

The Allweiler NTT 50-200 U5A-W4 centrifugal thermal oil pump is a high-performance volute casing thermal oil circulation pump engineered for handling heat transfer fluids, synthetic thermal oils, and hot water in industrial heating systems without requiring external cooling. Manufactured by Allweiler (CIRCOR), this heavy-duty heat transfer fluid centrifugal pump features an uncooled mechanical seal design with heat-dissipating cooling fins to protect bearings during high-temperature operations. Key technical specifications include a 50 mm discharge port, 200 mm nominal impeller diameter, maximum operating temperatures up to 350°C (662°F), pressure ratings up to 16 bar (PN16), flow rates up to 100 m³/h, mechanical shaft seal (U5A execution), and nodular cast iron (Spheroidal graphite iron W4) casing construction. Utilizing the Allweiler NTT 50-200 pump guarantees high volumetric efficiency, thermal stress resistance, leak-free performance, and long-term continuous-duty reliability in demanding thermal processing networks.