Weidmann radiator valves are machined in the United States in collaboration with UBW and are essential components of oil-immersed power transformers. Welded or bolted to the transformer tank, they support attached radiators or heat exchangers that lower oil temperature and increase transformer loading capacity. They also allow transformers to be shipped without radiators and enable radiator removal for maintenance or replacement without draining the insulating oil.
Although radiator valves represent a small portion of a transformer’s total cost, a leaking valve can create significant expense for manufacturers and end users. To meet industry requirements for durability and leak-free performance, every Weidmann radiator valve undergoes 100% leak testing using a highly accurate hydrogen tracer-gas method. In North America, Weidmann offers weld-on and bolt-on designs compatible with 3-inch and 4-inch diameter radiators.
