Return temperature limiter FJVR 15 - straight valve 003L1014

Return temperature limiter – precise control of thermal comfort

The FJVR 15 valve is a reliable solution for automatic return temperature control from radiators, fan coil units and underfloor heating loops. Its task is to maintain the optimal room temperature, ensuring thermal comfort and energy efficiency of the heating system. It also works in ventilation systems, where it minimizes flow through the heat exchanger.

This valve is a direct-acting regulator, designed for two-pipe pumped installations. It allows limiting and blocking the setting, giving full control over the heating process. The nickel-plated valve body provides corrosion resistance and durability.

Construction and application

The FJVR 15 return temperature limiter consists of a thermal element and a valve body, which are available for separate purchase. This design allows for flexible adaptation to individual installation needs. If necessary, the valve restrictor can be replaced without the need to drain the installation, which greatly facilitates service and maintenance.

The valve is mounted on the return from the radiator and can be installed in any position, provided that the correct flow direction is maintained. Before mounting the thermostatic head, the water flow can be adjusted using the screw in the valve cover – this is useful during finishing works.

Key features and benefits

• Precise regulation: Automatically adjusts the return temperature, ensuring stable thermal comfort.
• Versatility: Can be used in various types of heating installations – from traditional radiators to underfloor heating and ventilation systems.
• Durability: Nickel-plated body provides corrosion resistance and long life.
• Easy servicing: The ability to replace the restrictor without draining the installation simplifies maintenance.
• Efficiency: Kvs coefficient at 0.73 ensures optimal water flow in the installation.
• Compatibility: Designed to work with Danfoss clamping connections and RA series heads.
• Dimensions: Valve height is 37 mm, and radiator connection size is 1/2 inch (15).
• Safety: Surface protection in the form of nickel plating protects against corrosion and external factors.