Danfoss 065B-6180 Valve

The Danfoss 065B-6180 is a heavy-duty 3" flanged 4-way mixing valve engineered for precise temperature control in large-scale hydronic heating systems and boiler loops. Constructed from durable cast iron, this rotary mixing valve features a high flow capacity with a 175 Cv rating, making it ideal for managing high-volume water distribution. This valve is designed for dual-loop temperature regulation, allowing for efficient mixing of return water with supply water to protect boiler heat exchangers from thermal shock and prevent condensation. The linear characteristic ensures stable control across the entire rotation range when paired with compatible actuators. Whether you are retrofitting a commercial boiler plant or balancing a complex radiant system, this valve provides the necessary flow dynamics and mechanical reliability required for professional-grade HVAC installations. The flanged connections follow standard industrial specifications, ensuring a secure, leak-proof integration into existing 125lb or 150lb piping architectures.

• High Flow Capacity: Rated at 175 Cv to handle significant demand in commercial hydronic circuits.
• Cast Iron Construction: Provides superior structural integrity and longevity in closed-loop systems.
• 4-Way Mixing Logic: Simplifies boiler bypass and return temperature elevation in a single component.
• Actuator Compatibility: Designed for seamless integration with electronic rotary actuators for automated climate control.
• Thermal Protection: Effectively manages return water temperatures to optimize system efficiency and equipment life.

Common Questions

What is the maximum operating pressure for the Danfoss 065B-6180?
This cast iron flanged valve is typically rated for a maximum working pressure of 87 psi (6 bar) in standard hydronic applications, though it is essential to verify specific system pressures against the flange rating.

Can this 4-way valve be used for both heating and cooling applications?
While primarily used in heating for boiler protection and temperature mixing, it can be utilized in chilled water systems provided the medium is compatible with cast iron and the temperature remains within the -10°C to 110°C operating range.

Is the Danfoss 065B-6180 compatible with glycol-based systems?
Yes, this valve is suitable for use with water-glycol mixtures up to a 50% concentration, making it versatile for systems requiring freeze protection.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.