3-way mixing valve, flanged, straight flow, DN 65, PN6, kv=63 DR65GFLA

3-way mixing valve – precise temperature control in installations

This flanged mixing valve, with a nominal diameter of DN 65 and a pressure class of PN 6, is indispensable in water heating and air conditioning installations. Designed to work with water or a water-glycol mixture (up to 50% glycol content), it allows for effective control of the supply temperature. Its solid cast iron GGG 40.3 (GJS-400-18) construction guarantees long-lasting and reliable operation even in demanding conditions.

This valve is characterized by high performance – a Kvs value of 63 ensures optimal medium flow. Thanks to its constant percentage flow characteristic, temperature control is precise and stable. Leakage at a level of 1% (relative to the Kvs value) and 0.01% for bypass minimizes losses and ensures energy efficiency.

Design and application

The valve has three flanged connections with a diameter of 65 mm, which facilitates integration with existing infrastructure. The ability to mount on either the supply or return line increases installation flexibility. Designed to operate in a temperature range from 2°C to 130°C, it performs well in a variety of heating and cooling applications. Additionally, a priming paint surface protection prevents corrosion and extends the life of the device.

Mixing valves of this type are used wherever precise water temperature control is required – from central heating systems to air conditioning and process installations. The solid construction and chrome-plated rotary mushroom ensure a long service life and minimize maintenance requirements. The required actuator torque is 20 Nm.

Key features and benefits

• High performance: Kvs = 63 ensures optimal medium flow.
• Precise regulation: Constant percentage flow characteristic guarantees a stable supply temperature.
• Durable construction: Made of cast iron GGG 40.3 (GJS-400-18) provides corrosion resistance and long-lasting operation.
• Wide temperature range: Operation in the range of 2°C to 130°C enables use in various heating and cooling systems.
• Installation versatility: The ability to mount on the supply or return line increases installation flexibility.
• Warranty: The manufacturer offers a 5-year warranty from the date of manufacture, which demonstrates the high quality of the product.