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AssigneeMarioff Corporation Oy
InventorsGoran Sundholm, Harry Metzger, Richard Eggleton
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A spraying head, especially a spraying head intended for fire extinguishing, which comprises a frame part, an inlet for extinguishing medium and at least two nozzles. At least one first nozzle (9) is arranged in a spraying head part (2), for which first nozzle (9) the medium passage from the inlet of the spraying head is always open and that at least one second nozzle (4) is arranged in a sprinkler part (1) which comprises a triggering means (5), whereby the passage of medium from the inlet to at least one second nozzle (4) is closed when the triggering means (5) is non-activated, and that the passage of medium for at least one second nozzle (4) is open when the triggering means (5) is activated. The invention also relates to a method.
A spraying head, especially a spraying head intended for fire extinguishing, which comprises a frame part, an inlet for extinguishing medium and at least two nozzles, characterised in that that at least one first nozzle (9) is arranged in a spraying head part (2), for which first nozzle (9) a passage of medium from the inlet of the spraying head is always open and that at least one second nozzle (4) is arranged in a sprinkler part (1) which comprises a triggering means (5), whereby the passage of medium from the inlet to at least one second nozzle (4) is closed when the triggering means (5) is non-activated, and the passage of medium to at least one second nozzle (4) is open when the triggering means (5) is activated.
A method for fire extinguishing, in which method, based on a signal from a detector (33) is opened a passage for extinguishing medium from an extinguishing medium source (30) for at least one spraying head (32) installed on a protected site (35) and extinguishing medium is conveyed from the extinguishing medium source along a pipeline (31) to at least one spraying head installed on the protected site, characterised in that, in the method, at the first stage extinguishing medium is sprayed by at least one first nozzle (9) of at least one nozzle head of the activated site and at the second stage in addition by at least one second nozzle (4) activated nozzle-head-specifically due to the triggering of a triggering means (5).
Dependencies are inferred from the claim text.