Abstract: The invention relates to a device and to a method for producing a protective liquid barrier which prevents gases (G) coming from a structure, such as a machine, a storage unit or a production system (P), from spreading at ground level beyond a particular area in the event of an incident.

Abstract: The device of the invention for filtering fluids conveyed at high pressure is easy to service and withstands very high pressures whilst having an appreciably larger filter area than conventional high-pressure filters.

Abstract: This invention relates to a device for pumping high delivery volumes of a liquid, with at least two pumps each forming a single structural unit, which are jointly hooked up to a pressure line on the delivery side, and coupled to a single drive. The device according to the invention further develops the known device described in greater detail above in such a way as to provide an easily transported and space-saving device. This is achieved by virtue of the fact that at least one pump (4) is positioned in a plane spaced vertically apart from the plane in which the respective other pump (5, 6) is located.

Abstract: A portable fire extinguishing nozzle arrangement has a nozzle head provided with fire extinguishing nozzles that may be connected to a supply pipe. A plurality of fire extinguishing nozzles are mutually spaced apart at the free front side of the nozzle head. When supplied with fire extinguishing fluid, each fire extinguishing nozzle generates a mist of fire extinguishing fluid. The fire extinguishing nozzles may be selectively supplied with fire extinguishing fluid individually and/or in groups through a valve combination.

Abstract: A fire extinguishing device activates fire extinguishing nozzle-heads in multiple locations in response to fire-induced activation of one of the fire extinguishing nozzle-heads. The fire extinguishing nozzle-heads are connected to a supply pipe which conducts a fire extinguishing fluid from a pressure generator. Each nozzle-head includes at least one fire extinguishing nozzle and a fire detection contrivance, which, in the event of a fire, triggers the issue of the extinguishing fluid from the activated fire extinguishing nozzle. Each of the fire extinguishing nozzles-heads further includes at least two connecting channels providing communication between the fire extinguishing nozzles and a supply pipe. Both connecting channels are normally closed by respective shut-off devices while the extinguishing nozzle-heads are in a quiescent state.