Torch device with oxygen and combustion gas supply

A torch device with a torch body having separate gas ducts for oxygen and a combustion gas, wherein these gas ducts each extend between a respective inlet opening adapted for connection to a corresponding gas source and an outlet opening adapted for connection to a mixing and guiding device which can be exchangeably coupled with the torch body, and wherein in each of the gas ducts are provided a regulating valve for controlling the respective gas flow rate as well as a shut-off valve for switching the respective gas flow on and off, wherein these regulating valves are arranged contiguously on one side of the torch body, a corresponding shut-off valve being arranged on the opposite side of the torch body substantially opposite each of the regulating valves, the outlet of each of the regulating valves being connected with the inlet of the corresponding shut-off valve and the inlets of the regulating valves and the outlets of the shut-off valves communicating respectively with the inlet and outlet openings of the corresponding gas ducts, said gas ducts being formed by bores in the torch body extending substantially parallel to each other and passages for connection and communication with the regulating valves and the shut-off valves being formed by bores in the torch body extending substantially orthogonal with respect to said gas ducts, and wherein a common actuating device for the oxygen and the combustion gas shut-off valves is provided and arranged in such a way that, when switching-off, the shut-off valve for the combustion gas in completely closed before the closing of the shut-off valve for oxygen starts.