Angle Pressure Independent Balancing Valve DANFOSS 003L7615 (1¼")

Angle Pressure Independent Balancing Valve DANFOSS 003L7615 (1¼") is a compact hydraulic component designed for balancing and controlling flow in heating and cooling circuits with a 1¼" angle connection. The valve integrates automatic differential pressure compensation and a presettable flow characteristic to ensure stable, accurate flow rates regardless of system pressure changes. It is intended for use in terminal units, radiators and hydronic modules where precise flow distribution and reliable regulation are required.

Advantages

The angle pressure independent balancing valve combines hydraulic balancing and control in a single body, reducing the need for separate control and balancing devices. Its integrated differential pressure compensation maintains set flow across varying operating conditions, improving system stability and energy efficiency. The compact angle design saves installation space and simplifies piping layouts in confined plant rooms and terminal unit assemblies.

Suitable for

• Hydronic heating systems with radiator or convector connections
• Fan-coil units and terminal units in HVAC installations
• Domestic and light commercial heating and cooling circuits requiring accurate flow distribution

Key specifications

• Connection type: angled 1¼"
• Function: pressure-independent flow balancing and control
• Flow control: presettable flow setting with automatic differential pressure compensation
• Application area: heating and cooling hydronic circuits, terminal units
• Construction: compact angle valve body suitable for confined installation spaces

How to use

Install the valve in the return or supply line with the angled orientation matching the piping layout and flow direction. Set the required design flow using the valve's presetting mechanism according to project hydraulic calculations or manufacturer guidance. Once preset, the valve automatically compensates for differential pressure variations to maintain the selected flow. Combine the valve with compatible actuators or controllers when active temperature or on/off control is required; ensure sealing and torque recommendations are followed during assembly.

Usage recommendations

For accurate results, perform hydraulic calculations to determine the required flow for each circuit before presetting the valve. Flush and commission the system to remove debris and verify correct valve operation. Use in applications with compatible fluid quality and temperature ranges, and follow local installation codes and Danfoss installation guidelines for maintenance and actuator compatibility.