Foam generating nozzle

Details Foam generating nozzle Foam generating nozzle

B - Operations, Transporting

05

B

299/20

B05B 7/28 (2006.01) A62C 31/12 (2006.01) B01F 5/04 (2006.01) B05B 7/00 (2006.01)

Patent

CA 1266073

Abstract A foam generating nozzle construction, and method of use is disclosed, wherein a tubular nozzle body, with an inlet and outlet has turbulence inducing means in the form of contiguous transverse apertured plates preceding air aspirating means. A pressurized mixture of water and foaming agent enters the nozzle and diverges through a first set of apertures in an obstructing plate, thence converges through a contiguous plate with a central aperture partially overlying the first set of apertures to create a turbulent spray which then entrains air from aspiration holes to produce a low or medium expansion foam with an enhanced drain time.

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