The Herz PUMPFIX MIX DN 25 (part number 1451417) is a genuine pump group designed for heating circuits with an integrated mixer. This high-quality unit features a DN 25 nominal diameter, a kvs value of 6.3, and robust 1 1/2 inch internal thread connections for the heating circuit and 1 1/2 inch external thread connections for the boiler. Constructed from durable brass with EPP insulation, it ensures reliable performance. It is engineered to operate efficiently at temperatures up to 110 °C and pressures up to 10 bar, making it ideal for various heating system applications. Key dimensions include a pump installation length of 180 mm and a center distance of 125 mm.