The HERZ HJUP9S Teplomix 3-way mixing valve, also known by HERZ article number 1776604, is specifically engineered for reliable return temperature increase in heating systems. This DN32 valve features G 1 1/4" internal thread connections with flat seals, ensuring a secure and leak-proof installation. Constructed with a durable brass body, robust stainless steel internal components, and resilient EPDM seals, it is designed for longevity. The valve operates effectively up to a maximum operating temperature of 110°C and a maximum operating pressure of 10 bar, with a Kvs value of 16 m³/h. It maintains a precise fixed temperature setting of 60°C, making it ideal for optimizing boiler efficiency and preventing condensation.