Circulation pump IMP Pumps GHN basic II 65-190 F

The IMP Pumps GHN basic II 65-190 F circulation pump is the flagship model in the GHN basic II line, designed to provide superior performance and maximum head in the largest and most demanding heating, domestic hot water (DHW) circulation, ventilation, cooling, and air conditioning systems. This single-body flanged model with an impressive 65 mm connection diameter is the ideal choice for large industrial complexes, commercial buildings, centralized heating systems, and other facilities where uncompromising efficiency and reliability are required.

A key feature of the GHN basic II 65-190 F is its intelligent control system with three operating speeds. Unlike standard pumps, this model offers seamless speed switching without the need for manual stopping or restarting. Simply press a button on the control panel, and the powerful motor will automatically select the optimal rotor speed mode, adapting to the current hydraulic parameters of the system. This not only simplifies operation but also ensures maximum energy efficiency by using exactly as much power as needed. Light indication on the control panel clearly displays the selected speed mode, and the integrated alarm system will immediately notify the operator of any failures in the circulation system, guaranteeing uninterrupted operation and safety.
At the core of the pump's design is advanced "wet rotor" technology, where the entire rotor assembly is immersed in the pumped liquid. This principle ensures constant and efficient cooling of the electric motor, as well as continuous lubrication of high-quality graphite bearings directly by the working medium. Such an approach significantly reduces friction, minimizes component wear, and greatly increases the overall service life of the pump, making it exceptionally reliable. The stator coil is reliably protected by a separating sleeve integrated into the casing. The direct "motor-pump" connection (the impeller is mounted directly on the extended rotor shaft) ensures compactness, high power transfer efficiency, and ease of maintenance. The flanged connections (inlet and outlet) have identical 65 mm diameters and are located on the same axis, which significantly simplifies installation in large-scale piping systems.
Despite its impressive performance, the IMP Pumps GHN basic II 65-190 F is remarkably quiet. The low noise level allows this pump to be installed even in places where the strictest requirements for acoustic comfort are imposed, without causing discomfort to personnel or residents. To ensure stable and maximally efficient pump operation, it is important to maintain a minimum flow of at least 5% of its maximum flow.

By choosing the IMP Pumps GHN basic II 65-190 F, you are investing in the most modern, powerful, and intelligent equipment that guarantees superior circulation, maximum reliability, and durability for the most demanding and large-scale engineering systems, ensuring optimal microclimate and uninterrupted operation.