Constant pressure nozzle with modulation effect

Details Constant pressure nozzle with modulation effect Constant pressure nozzle with modulation effect

B - Operations, Transporting

05

B

299/15

B05B 1/00 (2006.01)

Patent

CA 1171891

ABSTRACT OF THE DISCLOSURE An automatically regulated constant-pressure fire-fighting nozzle having a pressure-responsive baffle element for adjusting the size of the discharge orifice in response to supply pressure changes. An upstream- directed baffle extension in opposition to the direction of fluid flow for creating a low-pressure zone adjacent said baffle element in response to high supply volume to modulate the effective displacement force acting on the orifice-regulating baffle element. The extension also serving to adjustably restrict the fluid flow passage to said orifice in response to pressure-induced displacement of said baffle element.

385770

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