Vanne de mélange 4 voies PN6, DN 65, à brides, Kvs=63 ZR65FA

Valve 4-way mixing with electric actuator, designed for heating and air conditioning systems

The ZR65FA type valve is a four-way mixing valve with flanged connections, designed for precise temperature regulation of water in heating and cooling installations. Its construction enables smooth mixing of flows from two sources – e.g., return and supply – to achieve the desired mixture temperature, without the need for additional valves or complex control systems.

The housing material is cast iron GG 20 (GJL-200), ensuring corrosion resistance and long-term stability in humid and thermal conditions. The surface is protected with a primer – it only needs to be finished with an appropriate anti-corrosion paint when installed in aggressive environments.

The connections are flanged, compliant with DIN EN 1092-2, with a nominal diameter DN 65 and pressure class PN 6. All four ports have identical diameter (65 mm) and connection length (105 mm), simplifying installation and allowing flexible pipeline layout. The valve is intended for use with water or water-glycol mixtures up to 50%, in accordance with VDI 2035.

The electric actuator provides 90° control, with a torque of 20 Nm – sufficient for this valve size. It operates as a synchronous motor, automatically locking in end positions thanks to limit switches. Manual operation is possible – simply disconnect the gear mechanism to rotate the valve manually. Upon reapplying voltage, the motor resumes control.

The working medium temperature ranges from 2°C to 130°C – the valve does not require additional heating or cooling even at high return temperatures. The maximum differential pressure at 20°C is only 0.1 bar – this means the valve is not intended for operation under large pressure differences between ports; its function is temperature regulation, not medium pumping.

Net weight: 14.9 kg. Height: 234 mm. The valve is compatible with Centra M6061 actuators (e.g., M6061L1035), which are standardly used in RESIDEO CENTRA systems.

Warranty: 5 years from the date of production – confirming structural stability and manufacturing quality.