Refurbishment inserts AHA theorell

The replacement inserts replace the insert in the valves of the AHA-Theorell brand with metal knobs, plastic knobs or five-spoke handwheels on the HE radiator. The replacement insert is controlled with a thermostat or handwheel. The valves are characterized by a red and blue dot on the steering wheel, an adjusting screw under the dome nut, the steering wheel five-pointed. The insert threads are W18.9 × 19 ″ for DN 10, W21x19 ″ for DN 15 and W24x19 ″ for 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.