The copper alloy material is adopted for sounding body and control valve. There is some excellence on it, e.g. Light weight, high stress, high volume, low power consume etc. every performance achieved and exceeded the request standard rules, The primary performance of the class of 1/3times band voice pressure and the range of audio are according with the standard of “International convention for preventing collisions at sea, 1972” and the clause of laws and rules of “Technical regulations for statutory surveys of ships engaged on international voyages” “Technical regulations for statutory surveys of sea-going ships on domestic voyages” “Technical regulations for statutory surveys of inland waterway ships” which are certified by china ship survey bureau.
Principle Description:
When the air come in, the air pressure in the body pushes out the drum to make the gap between drum and the surface pressed to the air siren body, much air is overflowed from the body and the air pressure dropped suddenly. Due to the springiness of drum increased when the air pressure dropped. So, the drum vibrated periodic, bring sonorous sounding by air resonance through the bell mouth.
Features：
1. Copper alloy
2. Supply electric-control type
3. Lightweight,high stress&volume,low power
4. One year warranty
5. Certificates：LR,GL,BV,ABS,NK,DNV,ZY
Air Horn Technical Data：
Air Horn Layout：
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