Refurbishment inserts TK-spärr

The replacement insert 21 M replaces the insert in one-door valves of Fellingsbro make TK-latch. The replacement insert is controlled with a thermostat, or handwheel. TK-lock valve design that it is built into the radiator, the steering wheel design. The insert thread is G1 / 2″. 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.