Limit Box Varioterm Zestaw Limit Box RTL GZ3/4 (ZKORTL06)

Varioterm Zestaw Limit Box RTL GZ3/4 is a compact control accessory designed for hydraulic balancing and regulation in heating systems. The device integrates a mechanical limiting function with a straightforward mounting interface for 3/4-inch fittings, enabling precise flow limitation and protection of actuators and thermostatic valves in radiator and panel installations.

Advantages

The Limit Box RTL provides stable and repeatable flow limiting without electronic components, ensuring simple adjustment and long-term reliability. Its robust construction is suitable for domestic and commercial installations and reduces the need for repeated manual balancing. The product design supports easy integration into existing piping layouts and minimizes maintenance requirements.

Suitable for

• Balancing hot water radiator systems
• Limiting flow to thermostatic radiator valves
• Integration with panel heating and low-temperature systems
• Replacement or upgrade of hydraulic balancing accessories in renovation projects

Key specifications

• Connection type: 3/4-inch threaded interface for standard fittings
• Function: mechanical flow limiter for hydraulic balancing
• Application: radiator and panel heating systems
• Material: corrosion-resistant components suitable for potable water heating circuits

How to use

Install the Limit Box RTL in the supply or return line close to the radiator valve according to the piping layout. Secure the 3/4-inch threaded connections with appropriate sealant or tape and tighten to the recommended torque for your fittings. Adjust the mechanical limiter to the required flow setting following the installer guidance to achieve the desired balance across the heating circuit. After adjustment, check for leaks and verify correct operation of thermostatic valves under normal system conditions.

Usage recommendations

For reliable performance, commission the hydraulic balancing after system fill and air purging. Use a calibrated flow or differential pressure measurement during setup if precise balancing is required. Regular visual inspection during annual maintenance is recommended to confirm integrity and absence of leaks.