Danfoss 013G-8015 Straight Valve Body

The Danfoss 013G-8015 is a 1/2" straight-pattern radiator valve body engineered for integration within two-pipe hydronic heating systems. Constructed from nickel-plated brass, this RA-N valve body features an integrated pre-setting orifice, allowing technicians to precisely balance flow rates and ensure optimal heat distribution across the loop. It is designed for seamless compatibility with Danfoss RA2000 radiator thermostats and TWA-A thermal actuators, utilizing a pressure-independent design to maintain system stability. This 1/2" NPT connection valve supports various TRV (Thermostatic Radiator Valve) upgrades, helping to eliminate uneven room temperatures and reduce pump energy consumption. The internal O-ring seal and packing gland are replaceable under system pressure, minimizing downtime during maintenance. By optimizing the hydronic balancing at the emitter, the 013G8015 ensures consistent mass flow and prevents common issues like velocity noise or short-cycling in high-efficiency boiler applications.

• Integrated Pre-setting: Allows for accurate kv value adjustments to match design flow requirements without the need for additional balancing valves.
• Universal Compatibility: Works with all Danfoss RA series operators, providing modular flexibility for manual or thermostatic control.
• System Maintenance: The stuffing box assembly can be swapped while the system is live, avoiding the need for a full system drain-down.
• Durable Construction: The nickel-plated brass body provides excellent corrosion resistance in closed-loop hydronic environments.
• Noise Reduction: Properly calibrated pre-setting reduces turbulent flow and localized high-velocity noise in residential and commercial emitters.

How do you adjust the pre-setting on the RA-N 013G8015?
The pre-setting is adjusted by lifting and turning the notched ring to the desired value (1–7 or N for fully open) based on the calculated flow data for the radiator.

Can this valve be used on a one-pipe steam system?
No, the 013G-8015 is specifically designed for two-pipe hot water (hydronic) systems and should not be used in steam applications.

What is the maximum operating pressure and differential pressure?
This valve is rated for a maximum working pressure of 145 psi (10 bar) and a maximum differential pressure of 11.6 psi (0.8 bar) to ensure quiet operation.

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.