Refurbishment inserts NAF

The replacement inserts replace the insert in the valves of NAF 64 or NAF 57 made with metal knobs or plastic knobs. The replacement insert is controlled with a thermostat or handwheel. The valves are characterized by the shape of the valve sometimes labeled NAF and an embossed washer text NAF and turned with hex screw in center or red and blue dot with text NAF with cross screw in center. The threads of the inserts are G3 / 8 ″ DN 10 and DN 15 and M22x1.5 DN 20. Note - For proper operation, existing valve housings are required to be in undamaged condition and the accompanying instructions are followed. The function cannot be guaranteed in the case of deviating valve designs, incorrect installation, insufficient heat capacity or other conditions we cannot control.