Danfoss 065B-8961 Mix Valve

The Danfoss 065B-8961 is a high-capacity 2.5" flanged 3-way mixing valve engineered for precision temperature control in demanding hydronic and industrial systems. Built with a rugged cast iron body (Type F), this rotary mixing valve features an impressive 105 Cv flow coefficient, making it an ideal choice for large-scale boiler loops, district heating, and chilled water applications. Designed for seamless integration, the unit utilizes ANSI flange connections to ensure a secure, leak-tight fit in 2-1/2 inch piping runs. With an operational range spanning 14°F to 230°F, it maintains stable regulation even under high flow rates. Technicians can easily automate this valve by pairing it with compatible ESBE ARA600 or Series 90 actuators for responsive, motor-driven mixing or diverting. This heavy-duty Danfoss mixing valve is the professional standard for technicians requiring reliable HVAC 3-way valve performance and long-term durability in closed-loop systems.

Key Benefits

• High Flow Efficiency: The 105 Cv rating ensures minimal pressure drop across the valve in high-volume commercial applications.
• Heavy-Duty Construction: Durable cast iron housing provides structural integrity for operating pressures up to 90 PSI.
• Versatile Automation: Easily adapts to electronic motor actuators for precise integration with DDC or outdoor reset controllers.
• Wide Thermal Range: Reliable performance across a broad temperature spectrum, suitable for both heating and cooling media (up to 50% glycol).
• Maintenance-Friendly: Features a visible position indicator and a replaceable stuffing box for simplified field service.

Common Questions

What is the maximum glycol concentration for this valve?
The Danfoss 065B-8961 is rated for use with water and water-glycol mixtures with a maximum concentration of 50% glycol.

Can this valve be used for diverting applications?
Yes, this 3-way rotary design is suitable for both mixing and diverting configurations depending on the piping layout and actuator settings.

Which actuators are compatible with the 065B-8961?
This valve is designed to work with ESBE ARA600 series or Series 90 electronic motor actuators using the appropriate mounting kits.

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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.