EN3 generally requires a filter when using aqueous extinguishing media.
In combination with our patented short foam nozzle (S-SCRO-KU-...) the duration of operation will be increased by about 4 seconds, whereby a higher A-rating can be reached.
The free cross-sectional area should be calculated according to the EN3.
|D||S||B||free sectional area||material||item number|
|14||0,25||0,4x0,4||58,2 mm²||stainless steel||D-SIEB-AN|
|15||0,3||0,8x0,8||93,4 mm²||stainless steel||D-SIEB-15|