3-way mixing valve, flanged, straight flow, DN 80, PN6, kv=100 DR80GFLA

3-way mixing valve – reliable flow control in heating and air conditioning systems

This flanged mixing valve, with a nominal diameter of DN 80 and a pressure class of PN6, is a key component in water heating and air conditioning systems. Designed to work with water or a water-glycol mixture (up to 50% glycol content), it provides precise temperature control and optimal system performance. The straight-through design minimizes flow resistance, resulting in energy efficiency.

This valve is characterized by high performance – a Kvs value of 100 guarantees an adequate flow rate, and its cast iron housing (GGG 40.3 / GJS-400-18) ensures durability and corrosion resistance. Additionally, the surface protected with a primer paint increases resistance to external factors.

Construction and application

The valve is intended for installation in systems requiring mixing of media at different temperatures, e.g., to obtain a comfortable heating water temperature in underfloor heating systems or in air conditioning installations with cooling. Its robust construction and high-quality materials guarantee long-term and trouble-free operation. Thanks to the flanged connections, installation is quick and easy, and replacement if necessary – simple.

• Durable construction: The body made of cast iron GGG 40.3 (GJS-400-18) provides resistance to high pressure and corrosion.
• Precise regulation: A Kvs value of 100 enables accurate flow control.
• Wide temperature range: The ability to operate in a temperature range from 2°C to 130°C makes the valve versatile and can be used in various applications.
• Low pressure drop: Straight flow minimizes hydraulic resistance, resulting in energy savings.
• Long service life: The use of high-quality materials and double O-ring sealing ensures reliability and long-term operation.

This valve has all connection ports with the same diameter (80 mm) and connection lengths of 125 mm, which facilitates integration with existing hydraulic infrastructure. A constant percentage flow characteristic ensures stable system operation regardless of load changes. Additionally, low leakage (1% for Kvs and 0.01% for bypass) minimizes medium losses and increases the energy efficiency of the installation.