For many applications the work under protective gas is being required. Our furnaces of the KU range of SEMI gas-tight type are appropriate for the operation with several types of protective gas such as e.g. nitrogen, forming gas 95/5, argon, helium, etc. When the protective gas is supplied a little pressure burden is occurring in the furnace by which the oxygen is being superseded and the entry of oxygen from outside can widely be omitted.

■ exterior housing seal-welded all around

■ gas-tight ducts for motor shaft of the ventilator and heating element connections

■ protective gas inlet and outlet connections

■ heat-resistant silicone sealing in the area of the door
■ extra door closing